[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Araujo, Adalberto"]
[Black "Rojas, Eduardo"]
[Result "1/2-1/2"]
[ECO "B44"]
[EventDate "1986.??.??"]
[PlyCount "113"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 
Be7 9.Be2 O-O 10.O-O b6 11.Be3 Bb7 12.Qb3 Nd7 13.Rad1 Qc7 14.Na4 Bd8 15.
Qd3 Nc5 16.Nxc5 dxc5 17.f4 e5 18.Nc2 Bf6 19.Bc1 exf4 20.Bxf4 Ne5 21.Qe3 
Qe7 22.b3 Rfe8 23.Bf3 b5 24.Qe2 Qe6 25.Ne3 Ng6 26.Nd5 bxc4 27.bxc4 Bxd5 
28.cxd5 Nxf4 29.dxe6 Nxe2+ 30.Bxe2 Rxe6 31.Bc4 Re7 32.Rfe1 Bd4+ 33.Kh1 g6 
34.g3 Kg7 35.Rb1 a5 36.Bd5 Rd8 37.Bc6 c4 38.Rbc1 c3 39.Red1 Be3 40.Rxd8 
Bxc1 41.Rc8 Bd2 42.Bd5 Kf6 43.Rc4 Ke5 44.Kg2 f5 45.Kf3 Re8 46.Ke2 Rb8 47.
Kd3 g5 48.Rc5 Rd8 49.Ke2 fxe4 50.Bb3+ Kd6 51.Rd5+ Kc7 52.Rxd8 Kxd8 53.Bc2 
h6 54.Bxe4 Kc7 55.h4 Kd6 56.hxg5 hxg5 57.Kd3 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Arencibia, Walter"]
[Black "Clavijo, Jose Luis"]
[Result "1-0"]
[ECO "A56"]
[EventDate "1986.??.??"]
[PlyCount "94"]

1.d4 Nf6 2.c4 c5 3.d5 Ne4 4.g3 Qa5+ 5.Nd2 g6 6.Bg2 Nd6 7.Qc2 Bg7 8.Nf3 Na6
9.O-O b5 10.cxb5 Qxb5 11.Ne4 Nxe4 12.Qxe4 Qb4 13.Qe3 d6 14.a3 Qb7 15.Qd3 
O-O 16.Rb1 Bd7 17.Bg5 Rfe8 18.Rfe1 Bb5 19.Qd2 Bc4 20.e4 Rab8 21.b4 cxb4 
22.axb4 Nxb4 23.Rec1 Ba2 24.Rxb4 Qxb4 25.Qxa2 h6 26.Bd2 Qxe4 27.Re1 Qd3 
28.Qxa7 Ra8 29.Qb7 Rab8 30.Qc6 Rbc8 31.Qd7 Rcd8 32.Qh3 h5 33.Bg5 Kf8 34.
Qh4 f6 35.Be3 Qxd5 36.Nd4 Qa5 37.Rd1 Qa2 38.Qe4 Kf7 39.Qb7 d5 40.Nc6 Rd6 
41.Bf4 Qa4 42.Rc1 Bh6 43.Bxd6 Bxc1 44.Bxd5+ Kg7 45.Nxe7 Kh6 46.Kg2 Rd8 47.
Qb1 Ba3 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Candan, Gonzalo"]
[Black "Urday, Henry"]
[Result "0-1"]
[ECO "E21"]
[EventDate "1986.??.??"]
[PlyCount "38"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 b6 5.Nf3 Bb7 6.a3 Bxc3+ 7.Qxc3 O-O 8.Bg5 
h6 9.Bh4 d6 10.e3 Nbd7 11.Be2 Qe7 12.O-O g5 13.Bg3 Ne4 14.Qc2 f5 15.Bd3 
Qg7 16.Nd2 Nxd2 17.Qxd2 f4 18.exf4 gxf4 19.Qe2 Rae8 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Matamoros, Carlos"]
[Black "Trigueros, Gustavo"]
[Result "1-0"]
[ECO "E12"]
[EventDate "1986.??.??"]
[PlyCount "61"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 7.e3 Be7 8.Bb5+ c6
9.Bd3 O-O 10.e4 Nxc3 11.bxc3 c5 12.O-O Nd7 13.Bb2 c4 14.Bc2 Nf6 15.Qe2 Qc7
16.Ne5 Bd6 17.f4 Bxe5 18.fxe5 Nd7 19.Qg4 b5 20.a4 b4 21.cxb4 c3 22.Ba3 Qb6
23.Qd1 Rfd8 24.a5 Qc7 25.Qh5 Nf8 26.b5 Ng6 27.Bc5 Qd7 28.a6 Bc8 29.Qf3 
Qxb5 30.Qxf7+ Kh8 31.Bf8 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Moran, Augusto"]
[Black "Sorin, Ariel"]
[Result "0-1"]
[ECO "E61"]
[EventDate "1986.??.??"]
[PlyCount "82"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Bg5 d6 5.e3 c5 6.Nf3 cxd4 7.exd4 Qa5 8.Qd2 
Bg4 9.Be2 Nc6 10.O-O O-O 11.Be3 d5 12.b4 Nxb4 13.Nxd5 Nfxd5 14.cxd5 Qa3 
15.d6 Nd5 16.dxe7 Qxe7 17.Bg5 Qd6 18.h3 Bf5 19.Bh6 Rac8 20.Bxg7 Kxg7 21.
Bd3 Bxd3 22.Qxd3 Nf4 23.Qe4 b6 24.Rfe1 Rfd8 25.Rac1 Rxc1 26.Rxc1 Ne6 27.
Rd1 Qd5 28.Qxd5 Rxd5 29.Kf1 Kf6 30.h4 Ke7 31.g3 Kd6 32.Rd2 f6 33.Rd3 Ra5 
34.a3 Kd5 35.Ke2 Ra4 36.Ke3 h5 37.Rb3 Ra5 38.Rd3 Ng7 39.Rc3 Nf5+ 40.Kd3 
Ra4 41.Rc8 Rxa3+ 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Moran, Bernardo"]
[Black "Rosito, Jorge"]
[Result "0-1"]
[ECO "E10"]
[EventDate "1986.??.??"]
[PlyCount "80"]

1.d4 Nf6 2.c4 e6 3.Nf3 a6 4.Bg5 c5 5.d5 h6 6.Bxf6 Qxf6 7.Nc3 d6 8.e4 e5 9.
Be2 Be7 10.O-O Nd7 11.Ne1 g6 12.Nd3 O-O 13.Kh1 Qg7 14.a3 f5 15.b4 b6 16.f3
f4 17.Na4 Bd8 18.bxc5 bxc5 19.Rb1 Rf7 20.Qd2 Rb8 21.Rb2 Rxb2 22.Qxb2 Nb6 
23.Nxb6 Rb7 24.Rb1 Rxb6 25.Qc2 Qb7 26.Rxb6 Qxb6 27.Qb2 Qc7 28.Bd1 Bd7 29.
Bc2 Kf7 30.Qc3 g5 31.h3 Qc8 32.Kh2 h5 33.Nxe5+ dxe5 34.Qxe5 Be7 35.h4 Qd8 
36.Qc3 g4 37.Qe5 g3+ 38.Kg1 Qa5 39.Qxh5+ Kg7 40.Qe5+ Bf6 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Munoz, Hugo"]
[Black "Hernandez, Gilberto"]
[Result "1-0"]
[ECO "B92"]
[EventDate "1986.??.??"]
[PlyCount "93"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.a4 Be6 10.Be3 d5 11.exd5 Nxd5 12.Nxd5 Bxd5 13.a5 Bxb3 14.cxb3 Nc6 
15.Bb6 Qe8 16.Qd5 Bd8 17.Be3 Bc7 18.b4 Qd8 19.Qe4 Qe7 20.Rac1 Kh8 21.Bxa6 
f5 22.Qc4 Rxa6 23.b5 Nxa5 24.Qxc7 Qxc7 25.Rxc7 Re6 26.b4 Nb3 27.Rxb7 f4 
28.Bc5 Rfe8 29.f3 e4 30.fxe4 Rxe4 31.Rd7 g5 32.Rd3 Nxc5 33.bxc5 Rb4 34.b6 
Rb2 35.Rdf3 Rc2 36.b7 Rxc5 37.Rb1 Rb8 38.Ra3 Re5 39.Ra8 Ree8 40.Rxb8 Rxb8 
41.Kf2 Kg7 42.Kf3 Kg6 43.h4 gxh4 44.Kxf4 h3 45.gxh3 Kh5 46.Rb6 Rf8+ 47.Ke5
1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "1"]
[White "Pacheco, Juan Edgardo"]
[Black "Servat, Roberto"]
[Result "1/2-1/2"]
[ECO "D53"]
[EventDate "1986.??.??"]
[PlyCount "128"]

1.d4 d5 2.Nf3 Nf6 3.c4 e6 4.Nc3 Be7 5.Bg5 h6 6.Bf4 O-O 7.Rc1 c5 8.e3 Nc6 
9.dxc5 Bxc5 10.cxd5 exd5 11.a3 d4 12.Nb5 Qa5+ 13.Qd2 Qxd2+ 14.Nxd2 dxe3 
15.fxe3 Bb6 16.Nc4 Nd5 17.Nxb6 axb6 18.Nc7 Nxc7 19.Bxc7 Be6 20.Bxb6 Bd5 
21.Kf2 Ne5 22.Be2 f5 23.Rhd1 Bc6 24.Rd4 Ng4+ 25.Bxg4 fxg4+ 26.Kg3 h5 27.
Rcd1 Rf5 28.Rd8+ Rxd8 29.Rxd8+ Kf7 30.Bd4 g5 31.Rd6 Rf1 32.Rh6 Rg1 33.e4 
h4+ 34.Kxg4 Rxg2+ 35.Kf5 Re2 36.Rh7+ Ke8 37.Kxg5 Rxe4 38.Rxh4 Rxh4 39.Kxh4
Kf7 40.Kg4 Kg6 41.Kg3 Kf5 42.Bb6 Bd5 43.Kh4 Bf3 44.Bc7 b5 45.Bb6 Bd1 46.
Kg3 Ke4 47.Bd8 Be2 48.Be7 Bd1 49.Bf8 Be2 50.Bg7 Bd1 51.Kf2 Bh5 52.Ke1 Kd3 
53.Bh8 Bg4 54.Kf2 Bd1 55.Bg7 Be2 56.h3 Bd1 57.Bf8 Be2 58.Ke1 Bh5 59.b3 Bf7
60.a4 bxa4 61.bxa4 Kc4 62.h4 Be8 63.a5 Kb5 64.Bb4 Ka6 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Clavijo, Jose Luis"]
[Black "Pacheco, Juan Edgardo"]
[Result "1/2-1/2"]
[ECO "B03"]
[EventDate "1986.??.??"]
[PlyCount "159"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 g5 6.Nf3 g4 7.Ng5 Bf5 8.Nc3 dxe5 
9.fxe5 Nc6 10.Be3 Bh6 11.Nxf7 Kxf7 12.Bxh6 Qxd4 13.Qxd4 Nxd4 14.O-O-O Rad8
15.c5 Nc8 16.Bc4+ Be6 17.Rhf1+ Kg6 18.Bxe6 Nxe6 19.Be3 c6 20.Ne2 Rxd1+ 21.
Kxd1 Rf8 22.Nf4+ Nxf4 23.Bxf4 e6 24.Ke2 Ne7 25.Ke3 Rd8 26.g3 Rd5 27.Rc1 
Nf5+ 28.Ke2 Nd4+ 29.Ke3 Kf5 30.b4 h5 31.a3 Nf3 32.Rf1 a5 33.h3 axb4 34.
hxg4+ hxg4 35.axb4 Nd2 36.Rh1 Nc4+ 37.Ke2 Nxe5 38.Rh5+ Kf6 39.Rh7 Nf7 40.
Rh4 Kf5 41.Rh5+ Kg6 42.Rh4 Rd4 43.Bd2 Ng5 44.Bc3 Rd7 45.Rxg4 Kh5 46.Rh4+ 
Kg6 47.Ke3 Rd1 48.Bd2 Rb1 49.Ke2 Nf7 50.Rg4+ Kf5 51.Rg7 Kf6 52.Bc3+ Ke7 
53.g4 Kf8 54.g5 e5 55.Rh7 Rg1 56.Bd2 Rg2+ 57.Ke1 Kg8 58.Rh3 Nxg5 59.Bxg5 
Rxg5 60.Rd3 Rg4 61.Rd8+ Kh7 62.Rd7+ Rg7 63.Rd6 Re7 64.Ke2 Kg7 65.Ke3 Kf8 
66.Ke4 Ke8 67.Rh6 Kd8 68.Rh5 Rg7 69.Kxe5 Rg4 70.b5 cxb5 71.Rh6 Kc7 72.Rb6 
Rb4 73.Kd5 Rb1 74.Kd4 Rd1+ 75.Ke4 Rb1 76.Kd4 Rd1+ 77.Kc3 Rc1+ 78.Kb4 Rb1+ 
79.Ka5 Rc1 80.Kb4 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Hernandez, Gilberto"]
[Black "Moran, Augusto"]
[Result "1-0"]
[ECO "C00"]
[EventDate "1986.??.??"]
[PlyCount "101"]

1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.g3 b6 5.Bg2 Bb7 6.e5 Nfd7 7.Ngf3 Nc6 8.Qe2 Nb4
9.Nb3 c5 10.a3 Nc6 11.O-O Be7 12.Re1 Qc7 13.c3 a5 14.a4 Ba6 15.Bf4 O-O-O 
16.Qd1 h6 17.d4 g5 18.Be3 g4 19.Nfd2 cxd4 20.cxd4 h5 21.Rc1 Kb8 22.Bf1 
Bxf1 23.Rxf1 Qb7 24.Nb1 Ka8 25.Nc3 Ndb8 26.Qe2 Rh7 27.Nb5 Rdh8 28.Rc2 Qd7 
29.Rfc1 Kb7 30.Bf4 Rc8 31.Qe3 Na6 32.Bg5 Bf8 33.f3 Nab4 34.Rf2 Re8 35.Rcf1
f5 36.exf6 e5 37.Re2 e4 38.fxg4 Qxg4 39.Nc1 Rf7 40.Qf4 Qxf4 41.Rxf4 Nd8 
42.h4 Re6 43.Re3 Ndc6 44.Rc3 Na6 45.Rf5 Bb4 46.Rc2 e3 47.Re2 Bd2 48.Nb3 
Nc7 49.Nxc7 Kxc7 50.Rxd5 Nb4 51.Re5 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Moran, Bernardo"]
[Black "Candan, Gonzalo"]
[Result "1-0"]
[ECO "E07"]
[EventDate "1986.??.??"]
[PlyCount "43"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O c6 7.b3 Nbd7 8.Bb2 Qc7 
9.Nbd2 dxc4 10.Nxc4 c5 11.Rc1 Rd8 12.Qc2 Nd5 13.Rfd1 Nb4 14.Qb1 Nc6 15.Qa1
Nxd4 16.Nxd4 cxd4 17.Bxd4 Bf6 18.Nd6 Bxd4 19.Qxd4 e5 20.Qd5 Nf6 21.Rxc7 
Nxd5 22.Bxd5 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Rojas, Eduardo"]
[Black "Munoz, Hugo"]
[Result "1-0"]
[ECO "E43"]
[EventDate "1986.??.??"]
[PlyCount "49"]

1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.Nc3 Bb4 5.e3 Bb7 6.Bd3 O-O 7.Qc2 d6 8.O-O Bxc3
9.bxc3 c5 10.e4 h6 11.e5 dxe5 12.dxe5 Nfd7 13.Bf4 Nc6 14.Rfd1 Qc7 15.Qe2 
Ne7 16.h4 Rfd8 17.h5 Qc6 18.Nh4 Nf5 19.Bxf5 exf5 20.Rd6 Qe4 21.Qd2 Bc8 22.
Re1 Qxc4 23.Nxf5 Re8 24.Bxh6 gxh6 25.Qxh6 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Rosito, Jorge"]
[Black "Servat, Roberto"]
[Result "1-0"]
[ECO "C95"]
[EventDate "1986.??.??"]
[PlyCount "81"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.Nf1 Bf8 14.Ng3 g6 15.a4 c5 
16.d5 c4 17.Be3 Nc5 18.Qd2 Bg7 19.Bh6 Qe7 20.Bxg7 Kxg7 21.Nh4 Kh8 22.Re3 
Nfd7 23.Nf3 Nb6 24.axb5 axb5 25.Ree1 Kg7 26.Nh2 Rxa1 27.Rxa1 Nba4 28.Bxa4 
Nxa4 29.Ng4 Bc8 30.Nh5+ Kh8 31.Ngf6 Qf8 32.Nxe8 Qxe8 33.Nf6 Qf8 34.f4 Qh6 
35.Rf1 Nc5 36.Qf2 Nd3 37.Qb6 Qf8 38.fxe5 Nxe5 39.Qxb5 Kg7 40.Qe8 Bd7 41.
Qxf8+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Sorin, Ariel"]
[Black "Matamoros, Carlos"]
[Result "0-1"]
[ECO "A57"]
[EventDate "1986.??.??"]
[PlyCount "74"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3 b4 5.Nbd2 d6 6.e4 e5 7.g3 g6 8.Bg2 Bg7 9.
O-O O-O 10.Ne1 a5 11.Nd3 a4 12.a3 b3 13.f4 Ng4 14.Nf3 f5 15.Ng5 exf4 16.
Bxf4 Bd4+ 17.Kh1 fxe4 18.Bxe4 Rxf4 19.gxf4 Ne3 20.Qf3 Nxf1 21.Rxf1 Qf6 22.
f5 Bxf5 23.Bxf5 gxf5 24.Ne4 Qg6 25.Ng3 Qg4 26.Qxf5 Qxf5 27.Nxf5 Nd7 28.
Nxd6 Ne5 29.Nxe5 Bxe5 30.Nb7 Bxb2 31.d6 Bxa3 32.d7 Bb4 33.d8=Q+ Rxd8 34.
Nxd8 a3 35.Ne6 h6 36.Nf4 a2 37.Nd3 Bc3 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Trigueros, Gustavo"]
[Black "Arencibia, Walter"]
[Result "0-1"]
[ECO "C19"]
[EventDate "1986.??.??"]
[PlyCount "68"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Nf3 Nbc6 8.Bd3 
Qa5 9.Qd2 c4 10.Be2 Qa4 11.O-O O-O 12.Qd1 Bd7 13.Bg5 Rae8 14.Nh4 Nc8 15.
Bh5 N6e7 16.Qe2 Qa5 17.Qd2 Ng6 18.Nxg6 fxg6 19.Bg4 h6 20.Bh4 Nb6 21.f4 Rf7
22.Be2 Ref8 23.g4 Na4 24.Be1 Qb6 25.Qc1 Qd8 26.Qe3 g5 27.fxg5 Rxf1+ 28.
Bxf1 hxg5 29.Bd2 Be8 30.Rb1 b6 31.Be2 Qe7 32.Ra1 Bg6 33.Bd1 Be4 34.Qxg5 
Qf7 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "2"]
[White "Urday, Henry"]
[Black "Araujo, Adalberto"]
[Result "1-0"]
[ECO "B44"]
[EventDate "1986.??.??"]
[PlyCount "69"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nb5 d6 6.Bf4 e5 7.Be3 Nf6 8.Bg5 
Be7 9.N1c3 a6 10.Na3 b5 11.Bxf6 Bxf6 12.Nd5 Bg5 13.c3 O-O 14.Nc2 f5 15.
exf5 Bxf5 16.Be2 Kh8 17.O-O Ra7 18.a4 bxa4 19.Rxa4 a5 20.Nce3 Be6 21.Bg4 
Bg8 22.Bf3 Rb7 23.Qe2 Qe8 24.Rfa1 Rbf7 25.Qa6 Rxf3 26.gxf3 Qh5 27.Rg4 Bf4 
28.Nxf4 exf4 29.Qxc6 fxe3 30.fxe3 Bd5 31.Qd7 Qe5 32.e4 Be6 33.Qe7 Rb8 34.
Rxa5 d5 35.Rxd5 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Araujo, Adalberto"]
[Black "Moran, Bernardo"]
[Result "0-1"]
[ECO "C15"]
[EventDate "1986.??.??"]
[PlyCount "68"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 Nf6 5.e5 Nfd7 6.a3 Be7 7.Be3 c5 8.f4 g6 9.
dxc5 Nxc5 10.Nd4 O-O 11.Be2 f6 12.exf6 Rxf6 13.O-O Nc6 14.b4 Nd7 15.Bg4 
Nb6 16.Qe1 Nc4 17.Nxc6 bxc6 18.Bd4 e5 19.Bxc8 exd4 20.Be6+ Kg7 21.Nd1 Qf8 
22.Bg4 Bd6 23.g3 a5 24.Bd7 axb4 25.Bxc6 Rxa3 26.Rxa3 bxa3 27.Bxd5 a2 28.
Nc3 Ne3 29.Ne4 Nxd5 30.Nxf6 Qxf6 31.Qa5 Ne3 32.Ra1 d3 33.Rxa2 dxc2 34.Qe1 
Qd4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Arencibia, Walter"]
[Black "Sorin, Ariel"]
[Result "0-1"]
[ECO "E76"]
[EventDate "1986.??.??"]
[PlyCount "58"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.d5 b5 8.cxb5 a6 9.
Bd2 e6 10.dxe6 Bxe6 11.a4 Re8 12.Be2 axb5 13.e5 b4 14.Nb5 Ne4 15.Be3 dxe5 
16.fxe5 Nd7 17.Qc2 Bf5 18.g4 Bxg4 19.O-O-O Bf5 20.Bd3 b3 21.Qxb3 c4 22.
Bxc4 Qc8 23.Nc3 Nxe5 24.Nxe5 Rxe5 25.Bxf7+ Kf8 26.Bg8 Re7 27.Bxh7 Nf6 28.
Qa3 Nxh7 29.Rhe1 Kf7 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Candan, Gonzalo"]
[Black "Rosito, Jorge"]
[Result "0-1"]
[ECO "E20"]
[EventDate "1986.??.??"]
[PlyCount "62"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3 c5 5.Nf3 cxd4 6.Nxd4 Ne4 7.Qd3 Qa5 8.Nb3 
Nxc3 9.Bd2 Ne4 10.Qxe4 Bxd2+ 11.Nxd2 O-O 12.Bg2 Nc6 13.Qf4 d5 14.cxd5 exd5
15.O-O Be6 16.Nb3 Qb6 17.Rfd1 Rfd8 18.Rac1 Rac8 19.Qg5 h6 20.Qh4 Nb4 21.
Rxc8 Rxc8 22.a3 Nc2 23.Qa4 Rc4 24.Qe8+ Kh7 25.Rxd5 Qxb3 26.Rb5 Qa2 27.Bd5 
Qb1+ 28.Kg2 Ne1+ 29.Kg1 Nf3+ 30.Kg2 Qg1+ 31.Kxf3 Bg4+ 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Matamoros, Carlos"]
[Black "Hernandez, Gilberto"]
[Result "0-1"]
[ECO "A71"]
[EventDate "1986.??.??"]
[PlyCount "56"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Bg5 h6 
9.Bh4 O-O 10.Nd2 Na6 11.Be2 Nc7 12.O-O g5 13.Bg3 Nfe8 14.a4 Rb8 15.Nc4 f5 
16.exf5 Bxf5 17.Bd3 Bxc3 18.bxc3 Nxd5 19.Bxf5 Rxf5 20.Qd3 Qf6 21.Ne5 Rxe5 
22.Bxe5 Qxe5 23.Rfe1 Nf4 24.Qb5 a6 25.Qd7 Ne2+ 26.Kf1 Nf6 27.Qh3 Re8 28.
Rad1 Ng4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Moran, Augusto"]
[Black "Rojas, Eduardo"]
[Result "0-1"]
[ECO "D61"]
[EventDate "1986.??.??"]
[PlyCount "174"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Qc2 c5 8.O-O-O 
Qa5 9.Kb1 h6 10.Bh4 cxd4 11.Nxd4 dxc4 12.Bxc4 Nb6 13.Bb5 Qb4 14.Bg3 Bd7 
15.a3 Qc5 16.Bxd7 Nbxd7 17.Ncb5 a6 18.Qxc5 Nxc5 19.Nc3 Rac8 20.Rc1 Nh5 21.
Rhd1 Nxg3 22.hxg3 Rfd8 23.Rc2 Bf6 24.Rcd2 Kf8 25.Ka2 Ke7 26.Kb1 h5 27.b4 
Nb3 28.Nxb3 Rxd2 29.Rxd2 Rxc3 30.Nc5 b6 31.Nxa6 Rxa3 32.Nb8 Rc3 33.Ra2 Kd6
34.Ra7 Rc7 35.Ra2 Rc4 36.Na6 Kc6 37.Nb8+ Kb5 38.Nd7 Rxb4+ 39.Kc2 Be7 40.
Ne5 f6 41.Nd3 Rc4+ 42.Kb3 Bd6 43.Ra7 Rc7 44.Ra8 Rd7 45.Kc2 Bb4 46.Rh8 Rc7+
47.Kb2 Bc3+ 48.Kc2 Ba5+ 49.Kb2 Kc4 50.Nf4 e5 51.Nxh5 Bc3+ 52.Kc2 Be1 53.f3
b5 54.Rg8 b4 55.Rxg7 b3+ 56.Kb1 Rc6 57.Rf7 Rd6 58.Rc7+ Kd3 59.Kb2 Rb6 60.
Rd7+ Kxe3 61.Rd5 Kf2 62.Rd3 Kxg2 63.Rxb3 Ra6 64.f4 e4 65.Re3 f5 66.Rxe1 
Kf2 67.Rh1 Rh6 68.Kc3 Kg2 69.Rh4 e3 70.Kd3 Kf3 71.Rh1 e2 72.Re1 Rd6+ 73.
Kc4 Rd7 74.Kc5 Kf2 75.Rh1 e1=Q 76.Rxe1 Kxe1 77.Nf6 Rf7 78.Nd5 Kf2 79.Kd6 
Kxg3 80.Ke6 Rf8 81.Ke7 Ra8 82.Ke6 Ra5 83.Kxf5 Rxd5+ 84.Ke6 Rd4 85.f5 Re4+ 
86.Kf7 Kf4 87.f6 Kf5 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Munoz, Hugo"]
[Black "Urday, Henry"]
[Result "0-1"]
[ECO "B42"]
[EventDate "1986.??.??"]
[PlyCount "76"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.c4 d6 8.Nc3 g6 
9.Be3 Bg7 10.f4 O-O 11.Rc1 Nbd7 12.Kh1 b6 13.b4 Bb7 14.Qe2 Rfe8 15.Nb3 Nh5
16.Qf2 Rab8 17.Rfd1 f5 18.exf5 gxf5 19.Be2 Nhf6 20.Rd2 Ng4 21.Bxg4 fxg4 
22.c5 bxc5 23.bxc5 dxc5 24.Nxc5 Nxc5 25.Bxc5 Qf7 26.Qg3 Qf5 27.Bd4 Rbd8 
28.Ne2 Rd7 29.Be3 Rxd2 30.Bxd2 Rd8 31.Be1 h5 32.Qf2 Rd3 33.Ng3 Qd5 34.f5 
Bd4 35.Qf1 h4 36.fxe6 Rf3 37.gxf3 Qxf3+ 38.Qxf3 Bxf3# 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Pacheco, Juan Edgardo"]
[Black "Trigueros, Gustavo"]
[Result "1-0"]
[ECO "A18"]
[EventDate "1986.??.??"]
[PlyCount "61"]

1.c4 Nf6 2.Nc3 e6 3.e4 e5 4.f4 d6 5.Nf3 Nbd7 6.Be2 Be7 7.O-O O-O 8.d4 exd4
9.Nxd4 c6 10.Kh1 Qa5 11.Nf5 Qd8 12.g4 Nc5 13.Bf3 a5 14.b3 Qc7 15.Bb2 Rb8 
16.Nxg7 Kxg7 17.g5 Qd8 18.Nd5 cxd5 19.Qd4 Nd7 20.Bg4 Qb6 21.Bxd7 Qxd4 22.
Bxd4 Bxd7 23.gxf6+ Bxf6 24.Rg1+ Kh6 25.Bxf6 Rg8 26.cxd5 Bg4 27.Rg3 Rg6 28.
Bg5+ Kh5 29.Rag1 f5 30.h3 Be2 31.exf5 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "3"]
[White "Servat, Roberto"]
[Black "Clavijo, Jose Luis"]
[Result "1-0"]
[ECO "B78"]
[EventDate "1986.??.??"]
[PlyCount "105"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.Bc4 Bd7 10.h4 Rc8 11.Bb3 h5 12.O-O-O Ne5 13.Bg5 a6 14.g4 Nc4 15.Qe2 
b5 16.Nf5 Bxf5 17.gxf5 Qb6 18.Rhg1 Kh7 19.fxg6+ fxg6 20.Bxc4 Rxc4 21.Be3 
Bh6 22.Bxh6 Kxh6 23.Qg2 Rg8 24.Nd5 Nxd5 25.Qg5+ Kh7 26.Rxd5 Rg7 27.b3 Rc3 
28.f4 Qf2 29.Rd2 Qe3 30.f5 Qxg5 31.Rxg5 Kh6 32.Rdg2 Re3 33.Rxg6+ Rxg6 34.
Rxg6+ Kh7 35.Re6 Kg8 36.Rxe7 Rh3 37.Kd2 Rxh4 38.Ke3 Rg4 39.Re6 h4 40.Rxd6 
Kg7 41.Kf3 Rg3+ 42.Kf4 Rg2 43.Rg6+ Rxg6 44.fxg6 Kxg6 45.c4 bxc4 46.bxc4 
Kf6 47.Kg4 Ke5 48.c5 a5 49.Kxh4 a4 50.Kg5 Kxe4 51.c6 Kd5 52.c7 Kc6 53.
c8=Q+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Candan, Gonzalo"]
[Black "Araujo, Adalberto"]
[Result "1-0"]
[ECO "D58"]
[EventDate "1986.??.??"]
[PlyCount "109"]

1.d4 e6 2.c4 Nf6 3.Nc3 d5 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.Rc1 Bb7 
9.Bd3 Ne4 10.Bxe7 Qxe7 11.cxd5 exd5 12.O-O Nd7 13.Qb3 Ndf6 14.Rfd1 Rfe8 
15.Qa4 c5 16.Ba6 Bxa6 17.Qxa6 Nxc3 18.Rxc3 Ne4 19.Rc2 c4 20.Qb5 Qe6 21.Qa6
Reb8 22.a4 f6 23.Rcc1 Kf7 24.Nd2 Nxd2 25.Rxd2 b5 26.axb5 Rb6 27.Qa4 f5 28.
b3 cxb3 29.Rc7+ Kg8 30.Qxb3 a6 31.Ra2 Rab8 32.Qc2 Rxb5 33.h3 R5b6 34.Qc5 
Qe4 35.Rc8+ Kh7 36.Rxb8 Rxb8 37.Rxa6 Qb1+ 38.Kh2 Qf1 39.Ra2 Rb1 40.Qxd5 
Qh1+ 41.Kg3 f4+ 42.exf4 Rb8 43.Qe4+ Kh8 44.Ra8 Rxa8 45.Qxa8+ Kh7 46.Qe4+ 
Kg8 47.d5 Qd1 48.Qe6+ Kh7 49.d6 h5 50.d7 Qd4 51.Qf5+ g6 52.Qf7+ Kh6 53.
Qf8+ Kh7 54.d8=Q h4+ 55.Qxh4# 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Hernandez, Gilberto"]
[Black "Arencibia, Walter"]
[Result "0-1"]
[ECO "C06"]
[EventDate "1986.??.??"]
[PlyCount "46"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.c3 c5 6.Bd3 Nc6 7.Ne2 cxd4 8.cxd4 
Qb6 9.Nf3 f6 10.exf6 Nxf6 11.O-O Bd6 12.Nc3 O-O 13.Bg5 Bd7 14.Re1 Kh8 15.
Na4 Qa5 16.Nc3 Qb6 17.Na4 Qc7 18.Rc1 Ng4 19.h3 Bh2+ 20.Kf1 Nxf2 21.Qe2 
Nxd3 22.Qxd3 Qg3 23.Nc5 Nxd4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Moran, Bernardo"]
[Black "Munoz, Hugo"]
[Result "1-0"]
[ECO "A46"]
[EventDate "1986.??.??"]
[PlyCount "79"]

1.Nf3 Nf6 2.d4 e6 3.Bg5 h6 4.Bh4 b6 5.Nbd2 Bb7 6.e3 Be7 7.Bd3 d5 8.Ne5 
Nbd7 9.f4 Ne4 10.Bxe7 Qxe7 11.O-O Nxd2 12.Qxd2 Nxe5 13.fxe5 O-O-O 14.a4 f5
15.a5 Bc6 16.Qe2 Rdf8 17.axb6 axb6 18.Bb5 Qd7 19.Ra8+ Kb7 20.Bxc6+ Kxc6 
21.Ra7 Ra8 22.Rfa1 Rxa7 23.Rxa7 Qc8 24.c4 Rd8 25.Qc2 dxc4 26.Qxc4+ Kd7 27.
Qb5+ Ke7 28.Qc6 Kf8 29.Rxc7 Qb8 30.Rb7 Qc8 31.Rxb6 Qxc6 32.Rxc6 Kf7 33.
Rc7+ Kg6 34.Rb7 Rc8 35.Kf2 Rc2+ 36.Kf3 Rd2 37.b4 Rb2 38.b5 Kh5 39.h3 g5 
40.g4+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Rojas, Eduardo"]
[Black "Matamoros, Carlos"]
[Result "1-0"]
[ECO "A30"]
[EventDate "1986.??.??"]
[PlyCount "115"]

1.Nf3 Nf6 2.c4 c5 3.Nc3 e6 4.g3 b6 5.Bg2 Bb7 6.O-O a6 7.d4 cxd4 8.Qxd4 d6 
9.b3 Nbd7 10.Bb2 Be7 11.Rfd1 O-O 12.Rac1 Qc7 13.Ng5 Bxg2 14.Kxg2 Rfd8 15.
Kg1 Qb7 16.Qd3 b5 17.cxb5 axb5 18.Qxb5 Qxb5 19.Nxb5 Rxa2 20.Ba3 h6 21.Nf3 
Ra8 22.Bxd6 Bxd6 23.Nxd6 Rxe2 24.Nd4 Rb2 25.Nc4 Rba2 26.Nc6 R2a6 27.Nd6 
Nd5 28.b4 N7b6 29.Ne5 Nxb4 30.Ndxf7 N6d5 31.Rc4 Rf8 32.Nd6 Rxd6 33.Rxb4 
Ra6 34.Rb2 Kh7 35.Rc1 Ra4 36.Nd7 Rf7 37.Nc5 Rb4 38.Rxb4 Nxb4 39.Nxe6 Nd3 
40.Rc2 Ne1 41.Re2 Nf3+ 42.Kg2 Ng5 43.Nf4 Kg8 44.Ra2 Nh7 45.Ng6 Nf6 46.Ra8+
Kh7 47.Nf8+ Kg8 48.Ne6+ Kh7 49.h4 g6 50.Ra6 Nh5 51.f3 Ng7 52.Nf4 g5 53.
hxg5 hxg5 54.Nh3 Rf5 55.Nf2 Ne8 56.Ne4 Kg7 57.Re6 Nf6 58.g4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Rosito, Jorge"]
[Black "Clavijo, Jose Luis"]
[Result "1-0"]
[ECO "B75"]
[EventDate "1986.??.??"]
[PlyCount "87"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
Bd7 9.g4 Rc8 10.h4 h5 11.g5 Nh7 12.f4 Bg4 13.Bc4 O-O 14.Bb3 Na5 15.Qd3 
Nxb3 16.axb3 a6 17.O-O e5 18.Nf3 f6 19.gxf6 Rxf6 20.Ng5 Nxg5 21.hxg5 Rf7 
22.f5 Qd7 23.Nd5 gxf5 24.g6 Rff8 25.Nb6 fxe4 26.Qd5+ Be6 27.Nxd7 Rxf1+ 28.
Rxf1 Bxd5 29.Nb6 Rxc2 30.Nxd5 Rxb2 31.Rf7 Rxb3 32.Ne7+ Kh8 33.Bh6 Rg3+ 34.
Kh2 Rxg6 35.Nxg6+ Kh7 36.Bxg7 Kxg6 37.Rxb7 e3 38.Bf8 d5 39.Kg3 Kf5 40.Kf3 
d4 41.Rf7+ Ke6 42.Ra7 e4+ 43.Kxe4 e2 44.Bb4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Sorin, Ariel"]
[Black "Pacheco, Juan Edgardo"]
[Result "0-1"]
[ECO "E61"]
[EventDate "1986.??.??"]
[PlyCount "110"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.Bg5 Nbd7 6.e3 O-O 7.Be2 c6 8.h3 e5 
9.O-O Qe7 10.Qc2 Re8 11.dxe5 dxe5 12.Nd2 Nc5 13.b4 Ne6 14.Bxf6 Qxf6 15.
Nce4 Qh4 16.c5 Ng5 17.Nxg5 Qxg5 18.Ne4 Bf5 19.Nxg5 Bxc2 20.Bc4 Re7 21.Rac1
Bf5 22.g4 Bd7 23.Rfd1 Be8 24.Rd6 e4 25.Rcd1 h6 26.Rxg6 hxg5 27.Rxg5 Re5 
28.Rg6 a5 29.a3 axb4 30.axb4 Ra4 31.Rb1 Kf8 32.Rd6 Re7 33.Bf1 Bc3 34.Rb3 
Be5 35.Rd8 Rd7 36.Rxd7 Bxd7 37.b5 Be6 38.Rb1 Ra1 39.Rxa1 Bxa1 40.f3 exf3 
41.Kf2 Bd7 42.bxc6 Bxc6 43.Bd3 Kg7 44.e4 Bd4+ 45.Kxf3 Bxc5 46.Kf4 Bg1 47.
h4 Bh2+ 48.Ke3 Bg3 49.h5 f6 50.Kd4 Bf2+ 51.Kc4 Kh6 52.Kb4 b6 53.Kc4 Bc5 
54.Bc2 Kg5 55.Bd3 Be3 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Trigueros, Gustavo"]
[Black "Servat, Roberto"]
[Result "0-1"]
[ECO "C45"]
[EventDate "1986.??.??"]
[PlyCount "60"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nf3 Qxe4+ 6.Be3 Bb4+ 7.c3 Bc5 8.
Bd3 Qe7 9.O-O Bxe3 10.Re1 Qf6 11.Rxe3+ Nge7 12.Nbd2 d5 13.Qc2 h6 14.Rae1 
O-O 15.Qb3 Rb8 16.c4 Be6 17.Qc2 Nb4 18.Qb1 Nxd3 19.Qxd3 dxc4 20.Nxc4 Rfd8 
21.Qc2 Nd5 22.Ra3 Nb4 23.Qe2 Bf5 24.Ne3 Nd3 25.Rd1 Nxb2 26.Rxd8+ Rxd8 27.
Nxf5 Rd1+ 28.Qxd1 Nxd1 29.N5d4 c5 30.Nb3 Qb2 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "4"]
[White "Urday, Henry"]
[Black "Moran, Augusto"]
[Result "1-0"]
[ECO "A07"]
[EventDate "1986.??.??"]
[PlyCount "139"]

1.Nf3 Nf6 2.g3 e6 3.Bg2 d5 4.O-O Be7 5.d3 O-O 6.Nbd2 c5 7.e4 Nc6 8.e5 Nd7 
9.Re1 Qc7 10.Qe2 b5 11.Nf1 a5 12.h4 b4 13.Bf4 Ba6 14.Ne3 Rac8 15.Nxd5 exd5
16.e6 Qd8 17.exd7 Qxd7 18.Ne5 Nxe5 19.Bxe5 Rce8 20.Qf3 Bb7 21.Re2 Ba8 22.
d4 f6 23.Bf4 cxd4 24.Rae1 Bc5 25.Kh2 Qf7 26.Bh3 Re4 27.Bf5 g6 28.Rxe4 dxe4
29.Bxe4 Bxe4 30.Qxe4 g5 31.Bc1 gxh4 32.Qxh4 d3 33.cxd3 Bxf2 34.Rf1 Bc5 35.
d4 Be7 36.Bh6 Rd8 37.Rf4 Kh8 38.Rg4 Bf8 39.Rf4 Be7 40.Rg4 Bf8 41.b3 Rc8 
42.d5 Rc2+ 43.Kh3 Qe7 44.Re4 Qd7+ 45.Re6 Bxh6 46.Qxh6 Rc8 47.Qxf6+ Kg8 48.
Qg5+ Kh8 49.Qe5+ Kg8 50.Qf5 Rd8 51.d6 Qg7 52.Re7 Qh6+ 53.Kg4 Qg6+ 54.Qxg6+
hxg6 55.d7 Kf8 56.Re8+ Rxe8 57.dxe8=Q+ Kxe8 58.Kg5 Kf7 59.Kh6 Kf6 60.g4 g5
61.Kh5 Ke5 62.Kxg5 Kd4 63.Kf4 Kc3 64.g5 Kb2 65.g6 Kxa2 66.g7 Kxb3 67.g8=Q+
Ka3 68.Ke3 a4 69.Kd2 Kb2 70.Qc4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Araujo, Adalberto"]
[Black "Rosito, Jorge"]
[Result "1/2-1/2"]
[ECO "A05"]
[EventDate "1986.??.??"]
[PlyCount "117"]

1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.d3 d5 6.Nbd2 c5 7.e4 Nc6 8.Nh4 Be7 
9.f4 Qc7 10.f5 O-O-O 11.fxe6 fxe6 12.exd5 exd5 13.Nf5 g6 14.Nxe7+ Qxe7 15.
Nf3 h6 16.Nh4 Qg7 17.Bf4 Nd7 18.c3 Rhf8 19.Bd2 Rxf1+ 20.Bxf1 Rf8 21.Qe2 g5
22.Nf3 d4 23.Bg2 Kd8 24.Re1 Qf7 25.c4 Kc7 26.a3 Qg6 27.b4 Qd6 28.b5 Nd8 
29.a4 Rf6 30.a5 Qf8 31.Rf1 Nf7 32.axb6+ axb6 33.Ne1 Nfe5 34.Bxb7 Rxf1+ 35.
Qxf1 Qxf1+ 36.Kxf1 Kxb7 37.Ke2 Kc7 38.h4 gxh4 39.gxh4 h5 40.Bf4 Kd8 41.Ng2
Nf7 42.Bg3 Nf6 43.Kf3 Kd7 44.Nf4 Ne5+ 45.Ke2 Neg4 46.Ng6 Ne3 47.Be5 Nfg4 
48.Bf4 Nf5 49.Bg5 Ng7 50.Nf4 Ne3 51.Bf6 Ngf5 52.Nxh5 Ng2 53.Be5 Ngxh4 54.
Nf4 Ne3 55.Nh3 Nhf5 56.Nf2 Nd6 57.Bxd6 Kxd6 58.Ne4+ Kc7 59.Nf6 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Arencibia, Walter"]
[Black "Rojas, Eduardo"]
[Result "1-0"]
[ECO "D59"]
[EventDate "1986.??.??"]
[PlyCount "89"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Nf3 b6 8.cxd5 Nxd5
9.Bxe7 Qxe7 10.Nxd5 exd5 11.Qb3 Be6 12.Be2 c5 13.Qa3 Nc6 14.dxc5 bxc5 15.
Rc1 Nb4 16.Qa5 d4 17.a3 Nd5 18.Qxc5 Qxc5 19.Rxc5 dxe3 20.fxe3 Nxe3 21.Kf2 
Ng4+ 22.Kg3 Nf6 23.Ra5 g5 24.Nd4 Rad8 25.Rd1 Ne4+ 26.Kf3 Bg4+ 27.Kxe4 Bxe2
28.Rd2 Rfe8+ 29.Re5 Bc4 30.Nf3 Bf1 31.Rxe8+ Rxe8+ 32.Kf5 Ba6 33.Rd6 Bc8+ 
34.Kf6 Bb7 35.Ne5 Bxg2 36.Nxf7 Rf8 37.Rd8 Rxd8 38.Nxd8 Bd5 39.b4 a6 40.Ne6
g4 41.Nc5 Bc4 42.Kg6 Kf8 43.Kxh6 Ke7 44.Kg5 Be2 45.Ne4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Clavijo, Jose Luis"]
[Black "Trigueros, Gustavo"]
[Result "1-0"]
[ECO "B91"]
[EventDate "1986.??.??"]
[PlyCount "75"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 g6 7.Bg2 Bg7 8.O-O O-O
9.h3 Qc7 10.Be3 Nc6 11.Nde2 Ne5 12.b3 Bd7 13.f4 Nc6 14.Qd2 Rac8 15.Rac1 b5
16.g4 Qa5 17.g5 Nh5 18.Nd5 Qxd2 19.Bxd2 Be6 20.c3 Bxd5 21.exd5 Nd8 22.Bf3 
Nb7 23.f5 Be5 24.Bxh5 gxh5 25.Bf4 Rc5 26.Rfd1 f6 27.gxf6 Bxf6 28.Kg2 Bh4 
29.Be3 Rcc8 30.Nd4 Kf7 31.Kf3 Rg8 32.Bf4 Nc5 33.c4 bxc4 34.Rxc4 Bg5 35.
Bxg5 Rxg5 36.b4 Rg3+ 37.Kxg3 Ne4+ 38.Kf4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Matamoros, Carlos"]
[Black "Urday, Henry"]
[Result "1-0"]
[ECO "E87"]
[EventDate "1986.??.??"]
[PlyCount "139"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 Nh5 8.Qd2 f5 9.
O-O-O Nd7 10.Bd3 Nc5 11.Bc2 a5 12.exf5 gxf5 13.Nge2 Bd7 14.g3 Nf6 15.h3 b6
16.g4 Qe8 17.Ng3 f4 18.Bxc5 bxc5 19.Nge4 Qe7 20.Rdg1 Ne8 21.h4 Rb8 22.Qd3 
Nf6 23.Nxf6+ Bxf6 24.Ne4 Bh8 25.g5 Kf7 26.h5 Ke8 27.h6 Kd8 28.Rg2 Bf5 29.
Qc3 Ra8 30.Qb3 Kc8 31.Bd3 Rb8 32.Qa4 Ra8 33.Qc2 Bg6 34.Rhg1 Rb8 35.Qa4 Ra8
36.Kb1 Qd7 37.Qxd7+ Kxd7 38.Kc2 Ke7 39.Nc3 Rg8 40.Bxg6 Rxg6 41.Ne4 Rb8 42.
Kd3 Rb4 43.Rc1 Kf7 44.Rc3 Rg8 45.Ra3 a4 46.b3 axb3 47.axb3 Rgb8 48.Kc3 Kg6
49.Rb2 R4b7 50.Ra6 Kf7 51.Ra4 Ke7 52.b4 Kd7 53.b5 Ke7 54.Rba2 Kd7 55.Ra6 
Kd8 56.Rc6 Kd7 57.Raa6 Ke7 58.Kc2 Kd7 59.Kb3 Ke7 60.Ka4 Kd7 61.b6 Kd8 62.
Ra7 Rxa7+ 63.bxa7 Ra8 64.Ra6 Kc8 65.Kb5 Kb7 66.Ra2 Rxa7 67.Rxa7+ Kxa7 68.
Kc6 Kb8 69.Nf6 Ka7 70.Kxc7 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Moran, Augusto"]
[Black "Moran, Bernardo"]
[Result "0-1"]
[ECO "D48"]
[EventDate "1986.??.??"]
[PlyCount "58"]

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.e3 e6 5.Nf3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6
9.e4 c5 10.d5 c4 11.Bc2 Qb6 12.O-O Bc5 13.e5 Nxd5 14.Nxd5 exd5 15.Qxd5 Bb7
16.Qd1 Nf8 17.Bf5 Ne6 18.Ng5 Rd8 19.Qg4 Rd4 20.Qg3 Nxg5 21.Qxg5 O-O 22.Be3
Rd5 23.Be4 Bxe3 24.fxe3 Rdd8 25.Bxb7 Qxb7 26.Rf3 Qe4 27.Raf1 Qg6 28.Qf4 
Qe6 29.h4 Rd5 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Munoz, Hugo"]
[Black "Candan, Gonzalo"]
[Result "1-0"]
[ECO "B29"]
[EventDate "1986.??.??"]
[PlyCount "47"]

1.e4 c5 2.Nf3 Nf6 3.Nc3 d5 4.exd5 Nxd5 5.d4 e6 6.Be2 cxd4 7.Nxd5 Qxd5 8.
Nxd4 Bc5 9.Be3 Bxd4 10.Bxd4 Nc6 11.Bc3 Qxd1+ 12.Rxd1 O-O 13.O-O e5 14.Bc4 
Bf5 15.Bb3 Rad8 16.h3 Nd4 17.Bxd4 exd4 18.Rfe1 Rd7 19.g4 Be6 20.Rxe6 fxe6 
21.Bxe6+ Rdf7 22.Rxd4 Re8 23.Bxf7+ Kxf7 24.Rd7+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Pacheco, Juan Edgardo"]
[Black "Hernandez, Gilberto"]
[Result "1-0"]
[ECO "A27"]
[EventDate "1986.??.??"]
[PlyCount "61"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.Nd2 Nf6 6.e3 Bb4 7.Qb3 Bxc3 8.bxc3 d6
9.Be2 O-O 10.O-O Na5 11.Qc2 c5 12.Nb3 Nxb3 13.axb3 Be6 14.Ba3 Rc8 15.b4 
cxb4 16.cxb4 Bxc4 17.Bxc4+ d5 18.Bxd5+ Qxd5 19.Qe2 Rc4 20.b5 Rfc8 21.Bc5 
b6 22.Be7 Rc2 23.Qd1 Nd7 24.Rxa7 Qxb5 25.d5 Rc1 26.Qxc1 Rxc1 27.Rxc1 Qxd5 
28.Bb4 Nc5 29.Bc3 Qc4 30.Rxg7+ Kf8 31.Rc7 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "5"]
[White "Servat, Roberto"]
[Black "Sorin, Ariel"]
[Result "0-1"]
[ECO "C82"]
[EventDate "1986.??.??"]
[PlyCount "108"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Nbd2 Nc5 10.c3 Bg4 11.Bc2 Be7 12.Re1 Qd7 13.Nb3 Rd8 14.h3 Bf5 15.
Bxf5 Qxf5 16.Nfd4 Nxd4 17.cxd4 Na4 18.Qg4 Qxg4 19.hxg4 Kd7 20.Re2 h5 21.
gxh5 Rxh5 22.g4 Rh4 23.f3 g5 24.Rh2 Rxh2 25.Kxh2 Rh8+ 26.Kg2 Rh6 27.Na5 
Bb4 28.Nb7 Rc6 29.Bxg5 Rc2+ 30.Kg3 Rxb2 31.Nd8 Nc3 32.Nxf7 Ne2+ 33.Kh3 
Nxd4 34.f4 Ke8 35.Nh6 Ne6 36.Kh4 Bd2 37.Rf1 d4 38.Ng8 Be3 39.Nf6+ Kf7 40.
Ne4 Rh2+ 41.Kg3 Re2 42.Kf3 Rxa2 43.Rh1 Bxf4 44.Bxf4 Ra3+ 45.Kf2 Nxf4 46.
Rh7+ Ke6 47.Rxc7 Nd3+ 48.Kf1 Nxe5 49.Ra7 Nxg4 50.Rxa6+ Rxa6 51.Nc5+ Kd5 
52.Nxa6 Kc4 53.Ke2 b4 54.Kd2 b3 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Araujo, Adalberto"]
[Black "Munoz, Hugo"]
[Result "0-1"]
[ECO "A30"]
[EventDate "1986.??.??"]
[PlyCount "106"]

1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.c4 c5 6.Nc3 Be7 7.d3 O-O 8.e4 d6 9.
Ne1 Nc6 10.f4 a6 11.g4 Nd7 12.g5 Nd4 13.h4 f5 14.Nc2 Nxc2 15.Qxc2 Rb8 16.
Bh3 Bc6 17.Qe2 Rf7 18.a4 Bf8 19.exf5 exf5 20.Qe6 g6 21.h5 Qe7 22.Qxe7 Rxe7
23.h6 Kf7 24.Bd2 Rb7 25.Bg2 Bxg2 26.Kxg2 Nb8 27.Kf2 Nc6 28.Nd5 Re6 29.Bc3 
Be7 30.Rfe1 Rxe1 31.Rxe1 b5 32.axb5 axb5 33.cxb5 Rxb5 34.Ke3 Rb7 35.Kd2 
Bd8 36.Kc2 Ra7 37.Kb1 Ra4 38.b3 Ra7 39.Kb2 Rb7 40.Kc2 Ra7 41.Kb2 Rb7 42.
Kc2 Rb5 43.Ne3 Nb4+ 44.Bxb4 Rxb4 45.Nd5 Rd4 46.Ra1 Rxd5 47.Ra7+ Be7 48.Ra8
Bf8 49.Ra7+ Kg8 50.Ra4 Rd4 51.Rxd4 cxd4 52.b4 d5 53.Kb3 Bd6 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Candan, Gonzalo"]
[Black "Moran, Augusto"]
[Result "0-1"]
[ECO "E20"]
[EventDate "1986.??.??"]
[PlyCount "98"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3 c5 5.Nf3 Ne4 6.Qd3 Qa5 7.Qxe4 Bxc3+ 8.Bd2 
Bxd2+ 9.Nxd2 O-O 10.Bg2 Na6 11.Qf4 Nb4 12.O-O cxd4 13.Nb3 Qa6 14.Nxd4 Qxc4
15.Nxe6 Qxe6 16.Qxb4 Qxe2 17.Rfe1 Qa6 18.Re7 Qf6 19.Rae1 d6 20.Rc7 Be6 21.
Rxb7 Rac8 22.Qd2 Rb8 23.b4 Rxb7 24.Bxb7 d5 25.Rd1 h5 26.Qe3 Rd8 27.Qxa7 
Qf3 28.Qd4 Bg4 29.Rd3 Qe2 30.Rd2 Qe1+ 31.Kg2 Be2 32.Kh3 Bf1+ 33.Kh4 Qe7+ 
34.Kxh5 Qxb7 35.f4 Qe7 36.Qe5 Qxe5+ 37.fxe5 Bc4 38.a4 Ra8 39.a5 Kf8 40.Kg4
Ke7 41.Kf4 Ke6 42.Rb2 Rb8 43.h4 d4 44.Ke4 d3 45.Kd4 Ba6 46.Ke3 Rb5 47.Kxd3
Rxb4+ 48.Kc3 Rxb2 49.Kxb2 Kxe5 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Hernandez, Gilberto"]
[Black "Servat, Roberto"]
[Result "1/2-1/2"]
[ECO "A08"]
[EventDate "1986.??.??"]
[PlyCount "79"]

1.Nf3 d5 2.g3 e6 3.Bg2 c5 4.O-O Nc6 5.d3 Bd6 6.e4 Nge7 7.Re1 O-O 8.Nbd2 
Bc7 9.c3 b6 10.d4 cxd4 11.cxd4 dxe4 12.Nxe4 Bb7 13.b3 Nd5 14.Bb2 Qe7 15.a3
Rfd8 16.Qe2 Rac8 17.Rac1 Bd6 18.b4 a5 19.b5 Nb8 20.Qd3 Nd7 21.Nfd2 N7f6 
22.f4 Nxe4 23.Nxe4 Bxf4 24.gxf4 f5 25.Ng5 Nxf4 26.Qxf5 exf5 27.Rxe7 Bxg2 
28.Rxc8 Rxc8 29.d5 Nh3+ 30.Kxg2 Nxg5 31.Rxg7+ Kf8 32.Kg3 Rc2 33.Rxg5 Rxb2 
34.Rxf5+ Ke7 35.Rh5 Kd6 36.Rxh7 Rxb5 37.Rh6+ Kc7 38.a4 Rxd5 39.Rh4 b5 40.
axb5 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Moran, Bernardo"]
[Black "Matamoros, Carlos"]
[Result "1/2-1/2"]
[ECO "A30"]
[EventDate "1986.??.??"]
[PlyCount "39"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.d4 cxd4 8.Nxd4 
Bxg2 9.Kxg2 O-O 10.Qd3 Nc6 11.Nxc6 dxc6 12.Qf3 Qc7 13.Bf4 e5 14.Bg5 Rad8 
15.Rad1 Rxd1 16.Rxd1 Rd8 17.Rxd8+ Bxd8 18.Ne4 Nxe4 19.Bxd8 Qxd8 20.Qxe4 
1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Rojas, Eduardo"]
[Black "Pacheco, Juan Edgardo"]
[Result "1-0"]
[ECO "A33"]
[EventDate "1986.??.??"]
[PlyCount "69"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.Nc3 cxd4 5.Nxd4 Nc6 6.Ndb5 d6 7.Bf4 e5 8.Bg5 
a6 9.Na3 Be6 10.e4 Be7 11.Bc1 Qa5 12.Bd3 b5 13.cxb5 d5 14.exd5 Nxd5 15.Nc4
Qb4 16.a3 Nxc3 17.axb4 Nxd1 18.bxc6 O-O-O 19.Nxe5 Bxb4+ 20.Kxd1 Rd5 21.
Rxa6 Rxe5 22.Ra8+ Kc7 23.Rxh8 Bb3+ 24.Bc2 Rd5+ 25.Ke2 Bxc2 26.Bf4+ Bd6 27.
Bxd6+ Rxd6 28.Rc1 Bd3+ 29.Ke3 Bg6 30.Ra8 Rd3+ 31.Ke2 Rb3 32.Ra7+ Kc8 33.
Rb7 Rxb7 34.cxb7+ Kxb7 35.Ke3 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Rosito, Jorge"]
[Black "Trigueros, Gustavo"]
[Result "1/2-1/2"]
[ECO "B99"]
[EventDate "1986.??.??"]
[PlyCount "108"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
9.O-O-O Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 Nc5 14.f6 gxf6 15.gxf6 
Bf8 16.Rg1 b4 17.Nd5 exd5 18.exd5 Bd7 19.Re1+ Kd8 20.Rg7 b3 21.axb3 Qa5 
22.Qe3 Kc7 23.b4 Qxb4 24.c3 Qa4 25.Rxf7 Qa1+ 26.Kc2 Bh6 27.Ne6+ Nxe6 28.
Rxd7+ Kc8 29.Qxe6 Qa4+ 30.Kb1 Qxd7 31.Qe4 Ra7 32.Qc4+ Qc7 33.Qg4+ Qd7 34.
Qh5 Qf7 35.Qxh6 Qg6+ 36.Qxg6 hxg6 37.Bd3 Rf7 38.Bxa6+ Kc7 39.Bd3 Rxf6 40.
Re7+ Kb6 41.Re6 Rxe6 42.dxe6 Re8 43.Bxg6 Rxe6 44.Bf5 Re2 45.h3 Kc5 46.Bg4 
Rh2 47.Ka2 Kc4 48.Ka3 Re2 49.Bc8 Rh2 50.Ba6+ Kc5 51.Bc8 Rg2 52.Bg4 Kc4 53.
Be6+ d5 54.Bc8 Rg3 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Sorin, Ariel"]
[Black "Clavijo, Jose Luis"]
[Result "1-0"]
[ECO "A56"]
[EventDate "1986.??.??"]
[PlyCount "57"]

1.d4 Nf6 2.c4 c5 3.d5 Ne4 4.Qc2 Qa5+ 5.Nd2 f5 6.f3 Nd6 7.e4 g6 8.b4 Qxb4 
9.Bb2 Rg8 10.e5 Nf7 11.Bd3 e6 12.Ne2 Bg7 13.f4 d6 14.Rb1 Qa5 15.O-O dxe5 
16.fxe5 Ke7 17.Nb3 Qd8 18.Nxc5 b6 19.Nxe6 Bxe6 20.dxe6 Nxe5 21.Nf4 Nxd3 
22.Nd5+ Kxe6 23.Qxd3 Nc6 24.Rbe1+ Kf7 25.Rxf5+ gxf5 26.Qxf5+ Bf6 27.Bxf6 
Qc8 28.Qxh7+ Kf8 29.Be7+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "6"]
[White "Urday, Henry"]
[Black "Arencibia, Walter"]
[Result "0-1"]
[ECO "C05"]
[EventDate "1986.??.??"]
[PlyCount "72"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.cxd4 
Qb6 9.g3 Be7 10.Bh3 f5 11.Ne2 Ndb8 12.g4 O-O 13.gxf5 exf5 14.O-O Na6 15.
Kh1 Nc7 16.Ng3 Kh8 17.Rf2 a5 18.Be3 a4 19.Rc1 Be6 20.Qc2 g6 21.Bf1 a3 22.
b3 Rac8 23.h4 Nb4 24.Qe2 Bd7 25.Qd2 Ne6 26.h5 Rxc1 27.Qxc1 g5 28.Nxg5 Bxg5
29.fxg5 f4 30.Bxf4 Qxd4 31.Be3 Qh4+ 32.Kg2 Rc8 33.Qd2 Bc6 34.Bf4 d4+ 35.
Kg1 Rf8 36.Qxb4 Rxf4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Arencibia, Walter"]
[Black "Moran, Bernardo"]
[Result "1-0"]
[ECO "A57"]
[EventDate "1986.??.??"]
[PlyCount "53"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3 g6 5.a4 bxc4 6.Nc3 Bg7 7.e4 d6 8.Bxc4 O-O 
9.O-O a5 10.Re1 Na6 11.e5 dxe5 12.Nxe5 Nb4 13.Bg5 Bb7 14.Qb3 Kh8 15.Rad1 
Qc8 16.d6 exd6 17.Rxd6 Ng4 18.Rd8 Nxe5 19.Rxc8 Raxc8 20.Nb5 Nxc4 21.Qxc4 
Rfe8 22.Rxe8+ Rxe8 23.Be3 Rd8 24.f3 Rd1+ 25.Kf2 Bd5 26.Qh4 h5 27.Nc3 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Clavijo, Jose Luis"]
[Black "Hernandez, Gilberto"]
[Result "1/2-1/2"]
[ECO "B91"]
[EventDate "1986.??.??"]
[PlyCount "82"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Be7 8.Bg2 
O-O 9.O-O b5 10.h3 Bb7 11.a3 Nbd7 12.g4 Nb6 13.Ng3 g6 14.f4 exf4 15.Bxf4 
Nc4 16.Qf3 Rc8 17.Nd5 Bxd5 18.exd5 Nd7 19.b3 Qb6+ 20.Kh2 Nce5 21.Qf2 Qxf2 
22.Rxf2 Rc7 23.Rc1 Rfc8 24.Re2 Kg7 25.Be3 h6 26.Ne4 f6 27.Bd4 Nd3 28.Nc5 
N7xc5 29.cxd3 Nxb3 30.Rxe7+ Rxe7 31.Bxf6+ Kxf6 32.Rxc8 Re3 33.Be4 Nc5 34.
Rc6 Ke5 35.Bxg6 Kxd5 36.Rb6 Nxd3 37.Bxd3 Rxd3 38.Rxa6 Re3 39.h4 Ke5 40.Ra5
d5 41.Rxb5 Rxa3 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Matamoros, Carlos"]
[Black "Candan, Gonzalo"]
[Result "1-0"]
[ECO "D35"]
[EventDate "1986.??.??"]
[PlyCount "109"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Nbd7 5.cxd5 exd5 6.Bf4 c6 7.e3 Be7 8.Bd3 
O-O 9.Qc2 Re8 10.O-O Nf8 11.Rab1 Be6 12.b4 a6 13.a4 N8d7 14.h3 Rc8 15.a5 
Nf8 16.Na4 Bd6 17.Bxd6 Qxd6 18.Nc5 Rc7 19.Ne5 Bc8 20.f4 N6d7 21.Rf3 f6 22.
Ng4 Nxc5 23.bxc5 Qd8 24.f5 Rce7 25.Qd2 Qc7 26.Nh2 Rf7 27.g4 g5 28.Nf1 Rfe7
29.Ng3 h6 30.Re1 Qd8 31.Bb1 Rd7 32.Rf2 Kg7 33.Rfe2 Rde7 34.Nh5+ Kf7 35.Ba2
Nd7 36.e4 Kf8 37.Ng3 Qc7 38.Kg2 Qd8 39.exd5 Rxe2+ 40.Rxe2 Rxe2+ 41.Nxe2 
cxd5 42.Bxd5 Nb6 43.Ba2 Nd5 44.Qb2 h5 45.Qb3 Qe8 46.Kf2 Ne7 47.Ng3 hxg4 
48.hxg4 Nc6 49.Qg8+ Ke7 50.Qg7+ Kd8 51.Qxf6+ Qe7 52.Qxe7+ Kxe7 53.Ke3 Nxa5
54.d5 Bd7 55.Ne4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Moran, Augusto"]
[Black "Araujo, Adalberto"]
[Result "1-0"]
[ECO "E61"]
[EventDate "1986.??.??"]
[PlyCount "51"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Bg5 d6 5.e3 c5 6.Nf3 Qa5 7.Qd2 O-O 8.Be2 cxd4
9.exd4 Nc6 10.d5 Nb8 11.O-O Nbd7 12.Rfe1 a6 13.Bf1 Re8 14.a3 Qc7 15.b4 Nb6
16.c5 dxc5 17.bxc5 Nbd7 18.Rac1 Nxc5 19.Bxf6 Bxf6 20.d6 Qd8 21.Nd5 Nb3 22.
Qe3 Nxc1 23.Nxf6+ Kg7 24.Nxe8+ Qxe8 25.Qc3+ f6 26.Rxe7+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Munoz, Hugo"]
[Black "Rosito, Jorge"]
[Result "0-1"]
[ECO "C45"]
[EventDate "1986.??.??"]
[PlyCount "109"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.g3 d5 8.Bg2 
dxe4 9.Nb5 Bxe3 10.Nxc7+ Kf8 11.fxe3 Rb8 12.Nd5 Qg5 13.Nf4 h5 14.Nd2 Bf5 
15.Nxe4 Bxe4 16.Bxe4 h4 17.Qf3 Rh6 18.O-O-O Ne5 19.Qg2 Nc4 20.Qe2 Qc5 21.
Rd4 b5 22.g4 Nc6 23.Bxc6 Rxc6 24.Nd3 Qg5 25.Rf4 b4 26.Qf3 Rc7 27.Rf1 f6 
28.Nxb4 Rxb4 29.Qa8+ Kf7 30.Re4 Qb5 31.Rf5 Qd7 32.Rd5 Qc8 33.Qxc8 Rxc8 34.
b3 Nb6 35.Rxb4 Nxd5 36.Rb7+ Rc7 37.Rb8 Nxc3 38.Kd2 Ne4+ 39.Ke2 Ng5 40.Kd3 
Kg6 41.Rh8 h3 42.a4 Rc1 43.b4 Rh1 44.b5 Rxh2 45.Kc3 Re2 46.a5 Rxe3+ 47.Kc4
Re1 48.Rh4 Kf7 49.Kc5 Ke6 50.Kc6 Ke5 51.b6 axb6 52.axb6 Rb1 53.b7 Kf4 54.
Kc7 Kg3 55.Rh8 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Pacheco, Juan Edgardo"]
[Black "Urday, Henry"]
[Result "0-1"]
[ECO "A42"]
[EventDate "1986.??.??"]
[PlyCount "84"]

1.c4 g6 2.e4 Bg7 3.d4 d6 4.Nc3 Nc6 5.Be3 e5 6.d5 Nce7 7.g4 f5 8.gxf5 gxf5 
9.Qh5+ Kf8 10.Bh3 Nf6 11.Qf3 f4 12.Bd2 a6 13.a4 c6 14.Ra3 Qb6 15.b3 cxd5 
16.cxd5 Qb4 17.Ra1 Rg8 18.Rb1 h5 19.Qd3 Bh6 20.Bxc8 Rxc8 21.f3 Qb6 22.Nge2
h4 23.Kf1 Qc7 24.Rg1 Kf7 25.Rxg8 Rxg8 26.Nd1 h3 27.Nf2 Rg2 28.Ng1 Rxh2 29.
Nfxh3 Nh5 30.Ke1 Qd7 31.Nf2 Bg5 32.Ng4 Rh1 33.Qf1 Ng6 34.Kd1 Ng3 35.Qg2 
Nh4 36.Qf2 Rxg1+ 37.Qxg1 Nxf3 38.Qb6 Qxg4 39.Qxb7+ Be7 40.Qxa6 Nxe4 41.Bb4
Nd4+ 42.Kc1 Qg1+ 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Servat, Roberto"]
[Black "Rojas, Eduardo"]
[Result "1/2-1/2"]
[ECO "C66"]
[EventDate "1986.??.??"]
[PlyCount "44"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7 7.Re1 exd4 8.Nxd4 
Nxd4 9.Qxd4 Bxb5 10.Nxb5 O-O 11.Bg5 Re8 12.Rad1 Nd7 13.Bxe7 Rxe7 14.Nc3 
Nb6 15.Re3 Qe8 16.Rde1 Qc6 17.Nd5 Nxd5 18.exd5 Rxe3 19.Qxe3 Qd7 20.Qe7 
Qxe7 21.Rxe7 Rc8 22.f4 Kf8 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "7"]
[White "Trigueros, Gustavo"]
[Black "Sorin, Ariel"]
[Result "0-1"]
[ECO "C45"]
[EventDate "1986.??.??"]
[PlyCount "90"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 5.Nb5 Bb4+ 6.N1c3 Ba5 7.Be2 a6 8.
Nd4 Qxe4 9.Nxc6 dxc6 10.O-O Qh4 11.Bh5 Bxc3 12.bxc3 Ne7 13.Ba3 O-O 14.Re1 
Be6 15.Rb1 b6 16.Rb4 Qf6 17.Rbe4 Rfd8 18.Qc1 Ng6 19.c4 Bf5 20.Bb2 Qd6 21.
Bxg6 Bxg6 22.Re7 f6 23.Qe3 Re8 24.Qe6+ Qxe6 25.R1xe6 Kf8 26.Rxe8+ Rxe8 27.
Rxe8+ Kxe8 28.c5 Bxc2 29.Bd4 b5 30.Kf1 Kd7 31.Ke2 Ke6 32.Kd2 Kd5 33.Be3 
Bb1 34.a3 Kc4 35.Kc1 Be4 36.f3 Kd3 37.Bf4 Bd5 38.Kb2 Ke2 39.Bxc7 Kf2 40.g3
Kxf3 41.Kc3 f5 42.h4 h6 43.Kd4 g5 44.hxg5 hxg5 45.Kd3 a5 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Araujo, Adalberto"]
[Black "Matamoros, Carlos"]
[Result "0-1"]
[ECO "C19"]
[EventDate "1986.??.??"]
[PlyCount "60"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Nf3 Bd7 8.a4 Qa5
9.Qd2 Nbc6 10.Bd3 f6 11.exf6 gxf6 12.O-O O-O-O 13.Ba3 c4 14.Be2 Nf5 15.
Rfb1 Rdg8 16.Rb5 Qc7 17.Rbb1 Rg7 18.Qc1 Rhg8 19.Bf1 e5 20.dxe5 fxe5 21.Qd2
e4 22.Ne1 Be6 23.Kh1 Rg4 24.g3 e3 25.fxe3 Nxg3+ 26.hxg3 Qxg3 27.Bg2 Ne5 
28.Qe2 Rh4+ 29.Kg1 Bg4 30.Qf2 Rh1+ 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Candan, Gonzalo"]
[Black "Arencibia, Walter"]
[Result "0-1"]
[ECO "A43"]
[EventDate "1986.??.??"]
[PlyCount "78"]

1.d4 c5 2.d5 g6 3.Nf3 Bg7 4.c4 d6 5.Nc3 f5 6.Bf4 Nf6 7.e3 Ne4 8.Rc1 Qa5 9.
Qa4+ Qxa4 10.Nxa4 Na6 11.Nd2 Nf6 12.Nc3 Nc7 13.f3 b5 14.e4 b4 15.Nd1 Nh5 
16.Be3 f4 17.Bf2 Be5 18.Be2 Bd7 19.Rg1 Ba4 20.b3 Bd7 21.g3 a5 22.gxf4 Nxf4
23.Be3 a4 24.Rg5 axb3 25.axb3 Ra2 26.Rxe5 dxe5 27.Bxc5 Ng2+ 28.Kf2 Rxd2 
29.Bxb4 Rxe2+ 30.Kxe2 Nf4+ 31.Ke3 Kf7 32.Bc3 Kf6 33.Ra1 Rc8 34.c5 Bb5 35.
Ra5 Bf1 36.d6 exd6 37.cxd6 Nb5 38.Bb2 Rc2 39.Nc3 Ng2# 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Hernandez, Gilberto"]
[Black "Trigueros, Gustavo"]
[Result "1-0"]
[ECO "B92"]
[EventDate "1986.??.??"]
[PlyCount "51"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 b5 7.a4 e5 8.Nb3 b4 
9.Nd5 Bb7 10.O-O Nxd5 11.exd5 Be7 12.a5 O-O 13.Ra4 Nd7 14.Rxb4 Qc7 15.Be3 
f5 16.f3 Nc5 17.Nxc5 dxc5 18.d6 Bxd6 19.Rxb7 Qxb7 20.Qxd6 Qxb2 21.Bxc5 
Rfe8 22.Bd3 Qc3 23.Bb6 e4 24.fxe4 fxe4 25.Bxe4 Rac8 26.Bf5 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Moran, Bernardo"]
[Black "Pacheco, Juan Edgardo"]
[Result "0-1"]
[ECO "E83"]
[EventDate "1986.??.??"]
[PlyCount "98"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 Nc6 6.Be3 O-O 7.Nge2 a6 8.a3 Bd7 
9.b4 Na7 10.Qd2 b5 11.Nc1 a5 12.cxb5 Rb8 13.bxa5 Nxb5 14.Nxb5 Bxb5 15.Bxb5
Rxb5 16.a4 Rb7 17.O-O Qa8 18.Ra2 Rfb8 19.d5 Nd7 20.Nd3 Qa6 21.Rc2 Rb3 22.
Rd1 Qb7 23.Qc1 Rc8 24.Rc6 Nb8 25.Rc4 c5 26.dxc6 Rxc6 27.Bb6 Bc3 28.Qc2 Ra3
29.Rxc6 Nxc6 30.Rb1 Qa6 31.Rb5 Qc8 32.Qc1 Ra1 33.Rb1 Nd4 34.Bxd4 Bxd4+ 35.
Kh1 Qxc1+ 36.Rxc1 Rxa4 37.g3 Rxa5 38.Rc4 Ra1+ 39.Kg2 Ra2+ 40.Kf1 Be3 41.h4
h5 42.f4 Rd2 43.Rc3 Bd4 44.Rb3 Kg7 45.Ke1 Rg2 46.Nc1 Rc2 47.Ne2 Bc5 48.Kd1
Rc4 49.Nc3 Bf2 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Munoz, Hugo"]
[Black "Moran, Augusto"]
[Result "0-1"]
[ECO "C03"]
[EventDate "1986.??.??"]
[PlyCount "72"]

1.e4 e6 2.d4 d5 3.Nd2 Be7 4.Bd3 Nf6 5.e5 Nfd7 6.c3 c5 7.Ne2 Nc6 8.Nf3 O-O 
9.O-O cxd4 10.cxd4 Nb6 11.Bf4 Bd7 12.Rc1 a5 13.Bb1 Nc4 14.Nd2 b5 15.Nxc4 
bxc4 16.Rc3 f5 17.exf6 Bxf6 18.Qc2 g6 19.Rg3 Bg7 20.Bg5 Qe8 21.h4 e5 22.
dxe5 Qxe5 23.Qd2 d4 24.Bf4 Qe6 25.h5 d3 26.Nc3 Nd4 27.hxg6 hxg6 28.Re1 Qf7
29.Bd6 Rfe8 30.Rge3 Nf5 31.Rxe8+ Rxe8 32.Rxe8+ Qxe8 33.Bf4 Bc6 34.Bg5 Ba8 
35.f3 Bd4+ 36.Kh1 Ng3+ 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Rojas, Eduardo"]
[Black "Clavijo, Jose Luis"]
[Result "1-0"]
[ECO "A36"]
[EventDate "1986.??.??"]
[PlyCount "79"]

1.Nf3 Nf6 2.c4 c5 3.Nc3 e6 4.g3 Nc6 5.Bg2 Be7 6.O-O O-O 7.d4 cxd4 8.Nxd4 
a6 9.b3 d5 10.cxd5 Nxd5 11.Nxd5 exd5 12.Bb2 Bf6 13.Qd2 Be6 14.Rfd1 Qe7 15.
Rac1 Rac8 16.Nxe6 fxe6 17.Bxf6 Qxf6 18.e4 d4 19.e5 Nxe5 20.Rxc8 Rxc8 21.
Qxd4 Nf3+ 22.Bxf3 Qxf3 23.Qd7 Rc6 24.Qd8+ Qf8 25.Kg2 h6 26.Qd7 Rc2 27.
Qxe6+ Kh8 28.Qb6 Qc5 29.Qd8+ Kh7 30.Qd3+ Kg8 31.Qf3 Qc6 32.Rd8+ Kh7 33.
Qxc6 bxc6 34.a4 Rb2 35.Rd3 c5 36.Rc3 c4 37.bxc4 Rb6 38.c5 Rc6 39.Kf3 Kg6 
40.Ke4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Rosito, Jorge"]
[Black "Sorin, Ariel"]
[Result "1/2-1/2"]
[ECO "C83"]
[EventDate "1986.??.??"]
[PlyCount "78"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Be7 10.Nbd2 O-O 11.Qe2 Nc5 12.Nd4 Nxb3 13.Nxc6 Nxc1 14.Raxc1 Qd7 
15.Nxe7+ Qxe7 16.f4 f5 17.exf6 Qxf6 18.Qf2 Rad8 19.Qd4 c5 20.Qxc5 d4 21.
Ne4 Qg6 22.Rce1 dxc3 23.Nxc3 Rd2 24.Rf2 Rxf2 25.Qxf2 b4 26.Ne4 Bxa2 27.Ng3
Qd6 28.f5 Rd8 29.Nh5 Bf7 30.Nf4 Qd4 31.Qxd4 Rxd4 32.g3 g6 33.fxg6 hxg6 34.
h4 Rd2 35.Re2 Rxe2 36.Nxe2 a5 37.Nd4 a4 38.Kf2 Bc4 39.Ke3 Kf7 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "8"]
[White "Urday, Henry"]
[Black "Servat, Roberto"]
[Result "1/2-1/2"]
[ECO "C82"]
[EventDate "1986.??.??"]
[PlyCount "98"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Be7 10.Nbd2 Nc5 11.Bc2 Bg4 12.h3 Bh5 13.Re1 Qd7 14.Nb3 Ne6 15.a4 
O-O 16.Qe2 bxa4 17.Rxa4 Bxf3 18.Qxf3 Nxe5 19.Qh5 g6 20.Qxe5 Qxa4 21.Bh6 
Bd6 22.Qf6 Qd7 23.Nd4 Rfe8 24.Nxe6 fxe6 25.Bxg6 Qe7 26.Qxe7 Rxe7 27.Bh5 e5
28.Bg5 Re6 29.f4 Bc5+ 30.Kh2 h6 31.f5 Rb6 32.Bc1 Be7 33.h4 Bxh4 34.Rxe5 
Rd8 35.Bf3 Rbd6 36.Bf4 Bg5 37.Bg3 Bf6 38.Re2 Rc6 39.Rd2 Rc5 40.Bf2 d4 41.
g4 dxc3 42.Rxd8+ Bxd8 43.Bxc5 c2 44.Be3 Bg5 45.Be4 Bxe3 46.Bxc2 Kg7 47.Kg2
Kf6 48.Kf3 Bc1 49.b3 Ke5 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Arencibia, Walter"]
[Black "Araujo, Adalberto"]
[Result "1-0"]
[ECO "A44"]
[EventDate "1986.??.??"]
[PlyCount "77"]

1.d4 c5 2.d5 e5 3.e4 d6 4.f4 exf4 5.Bxf4 Ne7 6.Bb5+ Bd7 7.Bxd7+ Qxd7 8.Nf3
Ng6 9.Bg3 b5 10.O-O Be7 11.Nbd2 O-O 12.a4 b4 13.Nc4 f6 14.Qd3 Qc7 15.b3 
Nd7 16.h4 Nge5 17.Bxe5 fxe5 18.g3 Rf7 19.Kg2 h6 20.Ne3 Nf6 21.Nd2 Bf8 22.
Qe2 g6 23.Ng4 Bg7 24.Rxf6 Rxf6 25.Nxf6+ Bxf6 26.Qg4 Qg7 27.Qe6+ Kh8 28.Rf1
Rf8 29.Qxd6 Be7 30.Rxf8+ Bxf8 31.Qe6 g5 32.h5 g4 33.Nc4 Be7 34.Qxe5 Bf6 
35.Qe8+ Kh7 36.e5 Qg5 37.Qg6+ Qxg6 38.hxg6+ Kxg6 39.exf6 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Clavijo, Jose Luis"]
[Black "Urday, Henry"]
[Result "0-1"]
[ECO "C06"]
[EventDate "1986.??.??"]
[PlyCount "44"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 Qb6 8.Nf3 cxd4
9.cxd4 f6 10.exf6 Nxf6 11.O-O Bd6 12.Re1 O-O 13.a3 Bd7 14.Rb1 Rae8 15.Bf4 
e5 16.dxe5 Nxe5 17.Nxe5 Bxe5 18.Be3 Bxh2+ 19.Kh1 Rxe3 20.fxe3 Ng4 21.Rf1 
Qh6 22.Rxf8+ Kxf8 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Matamoros, Carlos"]
[Black "Munoz, Hugo"]
[Result "1-0"]
[ECO "E12"]
[EventDate "1986.??.??"]
[PlyCount "68"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Ba6 5.Qc2 c5 6.d5 exd5 7.cxd5 Bb7 8.e4 Qe7 
9.Bd3 Nxd5 10.O-O Nc7 11.Bg5 f6 12.Bf4 Ne6 13.Bg3 g6 14.Nc3 a6 15.Nd5 Qd8 
16.Nxf6+ Kf7 17.Ng4 Be7 18.Bc4 b5 19.Bd5 Qb6 20.Bxb7 Qxb7 21.Rad1 Rd8 22.
Qc3 Rf8 23.Bxb8 Raxb8 24.Rxd7 Qxd7 25.Nge5+ Ke8 26.Nxd7 Kxd7 27.Ne5+ Kc7 
28.Qh3 Kd6 29.Qg3 Nf4 30.Nd3 g5 31.Nxf4 gxf4 32.Rd1+ Kc6 33.Qg4 Bd6 34.e5 
Bc7 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Moran, Augusto"]
[Black "Rosito, Jorge"]
[Result "1-0"]
[ECO "E10"]
[EventDate "1986.??.??"]
[PlyCount "43"]

1.d4 Nf6 2.c4 e6 3.Nf3 a6 4.Nc3 c5 5.d5 b5 6.e4 b4 7.e5 bxc3 8.exf6 gxf6 
9.bxc3 Bg7 10.Bd3 f5 11.O-O O-O 12.Bg5 Qa5 13.Rb1 Qc7 14.Be7 Re8 15.d6 Qa5
16.Ng5 h6 17.Nxf7 Rxe7 18.Nxh6+ Bxh6 19.dxe7 Kf7 20.Qh5+ Kxe7 21.Qxh6 Qxc3
22.Bxf5 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Pacheco, Juan Edgardo"]
[Black "Candan, Gonzalo"]
[Result "1-0"]
[ECO "D35"]
[EventDate "1986.??.??"]
[PlyCount "63"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 Nbd7 5.cxd5 exd5 6.g3 Be7 7.Bg2 O-O 8.O-O 
c6 9.Rb1 Nb6 10.b3 Bf5 11.Ra1 Re8 12.Bb2 h6 13.a4 Nbd7 14.Qd2 Bb4 15.Rfc1 
Qc7 16.Qd1 Re7 17.e3 Rae8 18.Nh4 Bh7 19.Nxd5 Nxd5 20.Bxd5 Nf6 21.Bg2 Qd6 
22.a5 Ne4 23.Ra4 b5 24.axb6 axb6 25.d5 Bc5 26.b4 Bxe3 27.fxe3 cxd5 28.Qg4 
Ng5 29.Qd4 Ne6 30.Qxd5 Qxd5 31.Bxd5 Ng5 32.Bd4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Servat, Roberto"]
[Black "Moran, Bernardo"]
[Result "0-1"]
[ECO "C16"]
[EventDate "1986.??.??"]
[PlyCount "160"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Qd7 5.a3 Bf8 6.Nf3 b6 7.Bd3 Ba6 8.Bxa6 Nxa6
9.Qd3 Nb8 10.O-O c5 11.dxc5 bxc5 12.Ne2 c4 13.Qc3 Ne7 14.b3 cxb3 15.cxb3 
Ng6 16.Be3 Be7 17.Rac1 O-O 18.b4 Qa4 19.Qc7 a5 20.Qb7 axb4 21.axb4 Bxb4 
22.Bd4 Ba3 23.Ra1 Qa6 24.Qxa6 Rxa6 25.Rfb1 Be7 26.Rxa6 Nxa6 27.g3 Rc8 28.
Rc1 Rxc1+ 29.Nxc1 Nb4 30.Kf1 Kf8 31.Ke2 Ke8 32.Nd3 Nxd3 33.Kxd3 Kd7 34.Nd2
f6 35.f4 fxe5 36.Bxe5 Nxe5+ 37.fxe5 Bc5 38.Nf3 h6 39.g4 Kc6 40.h4 g6 41.h5
g5 42.Nd2 Kb5 43.Nf3 Kb4 44.Nd2 Ka4 45.Nf3 Kb3 46.Nd2+ Kb2 47.Nf3 Ka3 48.
Kc3 Ka4 49.Kd3 Kb3 50.Nd2+ Ka2 51.Kc3 Ba3 52.Nf3 Bb2+ 53.Kc2 Ba1 54.Kd2 
Kb1 55.Kd1 Bc3 56.Ke2 Kc2 57.Ke3 Kd1 58.Kd3 Bb2 59.Ke3 Bc1+ 60.Kd3 Bb2 61.
Ke3 Bc1+ 62.Kd3 Bf4 63.Nd4 Bxe5 64.Nxe6 Ke1 65.Ke3 Kf1 66.Kf3 Bh8 67.Nd8 
d4 68.Nc6 Ke1 69.Nb4 Kd2 70.Ke4 Ke2 71.Nd3 Bg7 72.Nc1+ Kf2 73.Nd3+ Kg3 74.
Kf5 Bh8 75.Nc5 Kf3 76.Kg6 Kxg4 77.Kxh6 Kf5 78.Kh7 Bf6 79.h6 g4 80.Nd3 g3 
0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Sorin, Ariel"]
[Black "Hernandez, Gilberto"]
[Result "0-1"]
[ECO "A71"]
[EventDate "1986.??.??"]
[PlyCount "70"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Bg5 h6 
9.Bh4 a6 10.Nd2 b5 11.a4 b4 12.Ncb1 O-O 13.Bd3 Re8 14.O-O Nbd7 15.f4 Qc7 
16.Qf3 c4 17.Rc1 Nc5 18.Rxc4 a5 19.Rc2 Qb7 20.Rxc5 dxc5 21.Nc4 Bg4 22.Qg3 
Nxe4 23.Qxg4 Qxd5 24.Qf3 g5 25.fxg5 hxg5 26.Bf2 Rad8 27.Be2 g4 28.Qxg4 
Nxf2 29.Kxf2 Re4 30.Qf3 Rf4 31.Nbd2 Rxf3+ 32.Nxf3 Qe4 33.Rc1 Re8 34.Re1 
Qc2 35.Nxa5 Bxb2 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "9"]
[White "Trigueros, Gustavo"]
[Black "Rojas, Eduardo"]
[Result "0-1"]
[ECO "B80"]
[EventDate "1986.??.??"]
[PlyCount "58"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 Be7 7.f3 O-O 8.Qd2 a6
9.O-O-O b5 10.a3 Bb7 11.g4 Nc6 12.h4 Nd7 13.g5 Nxd4 14.Bxd4 Ne5 15.Qf2 Nc6
16.Bb6 Qc8 17.Rg1 b4 18.axb4 Nxb4 19.h5 d5 20.e5 a5 21.g6 fxg6 22.hxg6 h6 
23.Bb5 Bc6 24.Rg2 Bxb5 25.Nxb5 Qc6 26.Nc7 Rac8 27.Bxa5 Qa4 28.Qb6 Bg5+ 29.
Rxg5 Qxc2# 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Araujo, Adalberto"]
[Black "Pacheco, Juan Edgardo"]
[Result "0-1"]
[ECO "E83"]
[EventDate "1986.??.??"]
[PlyCount "100"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 Nc6 6.Be3 O-O 7.Nge2 a6 8.Qd2 e5 
9.Rd1 Rb8 10.d5 Na5 11.Nc1 c5 12.dxc6 bxc6 13.b3 Nb7 14.c5 Qa5 15.cxd6 Rd8
16.Na4 Qxd2+ 17.Rxd2 Nxd6 18.Bb6 Rxb6 19.Nxb6 Bh6 20.Rd1 Bb7 21.Nc4 Bf8 
22.Nxe5 Re8 23.Nc4 Nb5 24.Nd3 Nd5 25.Be2 Ndc3 26.Rd2 Nd4 27.Bd1 Bh6 28.Rb2
Rd8 29.O-O Ne6 30.Nf2 Nd4 31.b4 Bc1 32.Rc2 Nxc2 33.Bxc2 Nxa2 34.Bb3 Nc3 
35.Ne5 Rd4 36.Bxf7+ Kg7 37.Nfd3 Be3+ 38.Kh1 Rxd3 39.Nxd3 Kxf7 40.Re1 Bd4 
41.g3 Ke7 42.Nc5 Bc8 43.Nb3 Bg7 44.Ra1 Be6 45.Nc5 Nxe4 46.Rxa6 Nxc5 47.
bxc5 Bd5 48.Kg2 g5 49.Ra7+ Kf6 50.h4 g4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Candan, Gonzalo"]
[Black "Servat, Roberto"]
[Result "0-1"]
[ECO "E20"]
[EventDate "1986.??.??"]
[PlyCount "94"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3 Bxc3+ 5.bxc3 O-O 6.Bg2 d6 7.Nf3 Nc6 8.O-O 
Re8 9.Qd3 e5 10.Nd2 Qe7 11.e4 b6 12.Ba3 Ba6 13.Rae1 Qd7 14.Nb3 Na5 15.Nxa5
bxa5 16.dxe5 dxe5 17.Qxd7 Nxd7 18.Rd1 Nb6 19.c5 Bxf1 20.Bxf1 Na4 21.Rd7 c6
22.Bc4 Rf8 23.Rc7 a6 24.Rxc6 Rfc8 25.Rxc8+ Rxc8 26.Bxa6 Rc7 27.c4 Nxc5 28.
Bxc5 Rxc5 29.a4 Kf8 30.Kf1 Ke7 31.Ke2 Kd6 32.Bb5 Rc8 33.f4 f6 34.h4 Kc5 
35.h5 h6 36.fxe5 fxe5 37.Kd3 Kb4 38.Ke3 Rxc4 39.Bxc4 Kxc4 40.Kf3 Kd4 41.g4
Kd3 42.g5 Kd4 43.g6 Kd3 44.Kg3 Kxe4 45.Kg4 Kd4 46.Kf5 Kd5 47.Kg4 Ke4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Moran, Augusto"]
[Black "Matamoros, Carlos"]
[Result "0-1"]
[ECO "A57"]
[EventDate "1986.??.??"]
[PlyCount "76"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.a4 b4 5.Nd2 e5 6.e4 d6 7.b3 g6 8.Bb2 Bh6 9.Bd3 
O-O 10.Qe2 Nbd7 11.O-O-O Nb6 12.Kb1 Bd7 13.Bc2 a5 14.g3 Re8 15.h4 Nh5 16.
Ngf3 Bxa4 17.bxa4 Qd7 18.Ng5 Nxa4 19.Bxa4 Qxa4 20.Qd3 Reb8 21.Nb3 Qd7 22.
f4 a4 23.fxe5 dxe5 24.Nxc5 Qd6 25.Nxf7 Kxf7 26.Rhf1+ Kg8 27.Ne6 a3 28.c5 
Qe7 29.Qb3 axb2 30.d6 Qa7 31.Kxb2 Qa3+ 32.Qxa3 bxa3+ 33.Ka2 Nxg3 34.c6 
Nxf1 35.Rxf1 Rb2+ 36.Ka1 Bd2 37.Rf3 a2 38.Rf8+ Rxf8 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Moran, Bernardo"]
[Black "Clavijo, Jose Luis"]
[Result "1-0"]
[ECO "D58"]
[EventDate "1986.??.??"]
[PlyCount "57"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.Rc1 c6 9.
Be2 Bb7 10.O-O Nbd7 11.Qc2 Rc8 12.Rfd1 dxc4 13.Bxc4 Nd5 14.Bg3 N7f6 15.e4 
Nxc3 16.bxc3 Nh5 17.Be5 Bf6 18.g4 Bg5 19.gxh5 Bxc1 20.Qxc1 Qe7 21.Qf4 Rfd8
22.Qg4 Qf8 23.Kh1 Kh8 24.Rg1 f6 25.Nh4 Kh7 26.Ng6 Qe8 27.Nf4 Rd7 28.Bxe6 
Re7 29.Qf5+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Munoz, Hugo"]
[Black "Arencibia, Walter"]
[Result "0-1"]
[ECO "C05"]
[EventDate "1986.??.??"]
[PlyCount "122"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 f6 8.exf6 Nxf6
9.Nf3 Bd6 10.O-O O-O 11.Bg5 Bd7 12.Bh4 cxd4 13.cxd4 Be8 14.Bg3 Bh5 15.Bc2 
Rc8 16.Bb3 Ne4 17.Nc3 Bxf3 18.gxf3 Ng5 19.Kg2 Nxf3 20.Ne2 Qg5 21.Qd3 Nh4+ 
22.Kh1 Nb4 23.Qe3 Qxe3 24.fxe3 Bxg3 25.hxg3 Nf3 26.Rad1 Ng5 27.Nf4 Nc2 28.
Rd3 Ne4 29.Kg2 Nb4 30.Rdd1 Ng5 31.a3 Nc6 32.Rc1 Ne7 33.g4 g6 34.Ba4 Rfd8 
35.Nd3 Rxc1 36.Rxc1 Rc8 37.Rxc8+ Nxc8 38.Bd7 Nd6 39.Ne5 Kf8 40.Ba4 Ke7 41.
Bc2 Ngf7 42.Nxf7 Kxf7 43.b3 Kf6 44.Kf3 Kg5 45.Bd3 Ne8 46.Kg3 Nf6 47.Be2 
Ne4+ 48.Kh3 Nd2 49.b4 Nc4 50.e4 Nxa3 51.exd5 exd5 52.Bf3 Nc2 53.Bxd5 b6 
54.b5 Nxd4 55.Bc4 Kf4 56.Kh4 Nf3+ 57.Kh3 Ne5 58.Be6 g5 59.Bc8 h6 60.Be6 
Kf3 61.Bc8 Nd3 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Rojas, Eduardo"]
[Black "Sorin, Ariel"]
[Result "0-1"]
[ECO "E62"]
[EventDate "1986.??.??"]
[PlyCount "82"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 d6 5.Bg2 O-O 6.Nf3 c6 7.O-O Bf5 8.Nh4 Be6 
9.d5 cxd5 10.cxd5 Bd7 11.Be3 a5 12.a4 Na6 13.Nf3 Rc8 14.Rc1 Nc5 15.Nb5 
Bxb5 16.axb5 Qb6 17.Nd4 Ng4 18.Bg5 h6 19.Bf4 Ne4 20.Rxc8 Rxc8 21.e3 Ngf6 
22.h4 Rc7 23.g4 Nxd5 24.Ne6 fxe6 25.Bxe4 Qxb5 26.Bg3 Qxb2 27.Bxd5 exd5 28.
Qxd5+ Kh7 29.Qxa5 Qc3 30.Qb6 Qc6 31.Qb1 Qc2 32.Qb6 Qc6 33.Qb1 Qf3 34.Qb4 
Qd5 35.Rb1 Rc4 36.Qb6 Qe4 37.Kh2 Be5 38.Qxb7 Bxg3+ 39.fxg3 Rc2+ 40.Kh3 d5 
41.Rg1 h5 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Rosito, Jorge"]
[Black "Hernandez, Gilberto"]
[Result "1/2-1/2"]
[ECO "B99"]
[EventDate "1986.??.??"]
[PlyCount "51"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
9.O-O-O Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 Nc5 14.f6 gxf6 15.gxf6 
Bf8 16.Rg1 b4 17.Nd5 exd5 18.exd5 Bd7 19.Ne6 fxe6 20.f7+ Ke7 21.Qf4 Ba4 
22.Bc4 e5 23.Qg5+ Kd7 24.Qf5+ Ke7 25.Qg5+ Kd7 26.Qf5+ 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "10"]
[White "Urday, Henry"]
[Black "Trigueros, Gustavo"]
[Result "1-0"]
[ECO "B90"]
[EventDate "1986.??.??"]
[PlyCount "77"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4 e6 7.Be3 Be7 8.Be2 O-O
9.O-O b6 10.f4 Bb7 11.Bf3 Nbd7 12.Qe2 Qc7 13.g4 d5 14.e5 Ne4 15.Nxe4 dxe4 
16.Bg2 Bd5 17.Rfd1 Rfc8 18.Rac1 Bc5 19.Bf2 Bxd4 20.Bxd4 Qb7 21.c4 Bc6 22.
b3 Nc5 23.Rc3 Nd3 24.Qe3 Rab8 25.f5 f6 26.a5 bxa5 27.exf6 e5 28.Ba7 Ra8 
29.Bb6 gxf6 30.Bxa5 Qg7 31.Kh1 Qxg4 32.Rcxd3 exd3 33.Rg1 Kh8 34.Bxc6 Qxg1+
35.Kxg1 Rxc6 36.Qxd3 Re8 37.Qd7 Rcc8 38.Kf2 e4 39.Bc3 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Arencibia, Walter"]
[Black "Moran, Augusto"]
[Result "1-0"]
[ECO "E20"]
[EventDate "1986.??.??"]
[PlyCount "103"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 c5 5.d5 Bxc3+ 6.bxc3 Nh5 7.g3 f5 8.e4 f4 
9.dxe6 fxg3 10.Qd5 Nf6 11.Qxc5 Na6 12.Qg5 dxe6 13.hxg3 O-O 14.e5 Nd7 15.
Qh5 h6 16.Bxh6 Rf5 17.Qg6 Rxe5+ 18.Kf2 Qf6 19.Qe8+ Qf8 20.Qxf8+ Nxf8 21.
Bf4 Ra5 22.Bd6 Nc5 23.Ne2 b6 24.Nd4 Ba6 25.Be2 Ra4 26.Nb3 Nfd7 27.Nd2 Rc8 
28.f4 Rc6 29.Be7 Ra3 30.f5 Kf7 31.Bf3 Rc8 32.fxe6+ Kxe7 33.exd7 Rf8 34.Rh7
Rxc3 35.Rxg7+ Kd8 36.Ke2 Rc2 37.Re1 Nxd7 38.Bd5 Re8+ 39.Kd3 Rxa2 40.Rxe8+ 
Kxe8 41.Bc6 Bc8 42.Rg8+ Ke7 43.Rxc8 Ne5+ 44.Kc3 Ra3+ 45.Kb4 Rd3 46.Re8+ 
Kf6 47.Ne4+ Kf5 48.Rf8+ Ke6 49.Rf6+ Ke7 50.Bd5 Nd7 51.Rf7+ Kd8 52.Rg7 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Clavijo, Jose Luis"]
[Black "Candan, Gonzalo"]
[Result "0-1"]
[ECO "B29"]
[EventDate "1986.??.??"]
[PlyCount "102"]

1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.c4 Nc6 7.Qd1 Nde7 8.Bd2 
Ng6 9.Bc3 Qc7 10.Qe2 Be7 11.g3 O-O 12.Bg2 d6 13.exd6 Bxd6 14.O-O b6 15.
Nbd2 Bb7 16.Ne4 Be7 17.Rad1 Rfd8 18.Nfg5 h6 19.Nxf7 Kxf7 20.Qh5 e5 21.Rxd8
Nxd8 22.f4 Bc5+ 23.Kh1 Qc6 24.f5 Qxe4 25.fxg6+ Kg8 26.Bxe4 Bxe4+ 27.Rf3 
Ne6 28.Qg4 Ng5 29.Qxe4 Nxe4 30.Bxe5 Rf8 31.Rxf8+ Kxf8 32.Kg2 Bd6 33.Bd4 
Be7 34.b3 Bf6 35.Be3 Ke8 36.Kf3 Nc3 37.a4 Kd7 38.Kg4 Ne4 39.b4 Bc3 40.a5 
bxa5 41.bxa5 a6 42.c5 Kc6 43.Kf5 Nxc5 44.h4 Kd5 45.g4 Ne6 46.h5 Bxa5 47.g5
hxg5 48.Bxg5 Bc3 49.h6 gxh6 50.Bxh6 a5 51.Bc1 a4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Hernandez, Gilberto"]
[Black "Rojas, Eduardo"]
[Result "1/2-1/2"]
[ECO "B42"]
[EventDate "1986.??.??"]
[PlyCount "65"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Qc7 6.O-O Nf6 7.c4 Bd6 8.Nf3 
Nc6 9.Nc3 O-O 10.Kh1 b6 11.b3 Bb7 12.Bb2 Ne5 13.Nxe5 Bxe5 14.Qe2 Rfe8 15.
Rae1 d5 16.exd5 Bxc3 17.Bxc3 exd5 18.Be5 Qd7 19.Qc2 dxc4 20.bxc4 Qc6 21.f3
h6 22.Qb2 Red8 23.Bxf6 Qxf6 24.Qxf6 gxf6 25.Re7 Bc6 26.Rc7 Rd6 27.h3 Re8 
28.c5 Rxd3 29.Rxc6 bxc5 30.Rxc5 Re2 31.Ra5 Rdd2 32.Rxa6 Rxa2 33.Rxa2 
1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Matamoros, Carlos"]
[Black "Rosito, Jorge"]
[Result "1-0"]
[ECO "E10"]
[EventDate "1986.??.??"]
[PlyCount "69"]

1.d4 Nf6 2.c4 e6 3.Nf3 a6 4.Nc3 c5 5.d5 b5 6.e4 b4 7.e5 bxc3 8.exf6 gxf6 
9.bxc3 d6 10.Bd3 Bg7 11.O-O Ra7 12.Rb1 Nd7 13.Re1 Ne5 14.Nxe5 fxe5 15.Qh5 
h6 16.Bd2 exd5 17.cxd5 Qf6 18.f4 Re7 19.fxe5 dxe5 20.Re2 O-O 21.Rf1 Qd6 
22.c4 Bd7 23.Be4 f5 24.Bxf5 Bxf5 25.Rxf5 Rxf5 26.Qxf5 Rf7 27.Qe4 Qf8 28.h3
Rf1+ 29.Kh2 Qf6 30.Be3 Bf8 31.Rb2 h5 32.Rb7 Bg7 33.Rb8+ Kf7 34.Qh7 Qf5 35.
Rb7+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Pacheco, Juan Edgardo"]
[Black "Munoz, Hugo"]
[Result "1-0"]
[ECO "A18"]
[EventDate "1986.??.??"]
[PlyCount "67"]

1.c4 Nf6 2.Nc3 e6 3.e4 d6 4.f4 c5 5.Nf3 Nc6 6.g3 Be7 7.Bg2 O-O 8.O-O a6 9.
d3 Rb8 10.b3 b5 11.Bb2 Nd7 12.Kh1 Bf6 13.Qd2 Ne7 14.Rad1 b4 15.Ne2 e5 16.
f5 g6 17.g4 Bg7 18.Ng3 f6 19.Rf2 gxf5 20.gxf5 Kh8 21.Nh5 Qe8 22.Nxg7 Kxg7 
23.Rg1 Rg8 24.Bh3+ Kh8 25.Bg4 Bb7 26.Bc1 Rg7 27.Qh6 Qf8 28.Qh3 Ng8 29.Nh4 
Bc8 30.Ng6+ Rxg6 31.fxg6 Qg7 32.gxh7 Qxh7 33.Qxh7+ Kxh7 34.Bf5+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Servat, Roberto"]
[Black "Araujo, Adalberto"]
[Result "1-0"]
[ECO "B59"]
[EventDate "1986.??.??"]
[PlyCount "70"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 e5 6.Nb3 Be6 7.Be2 Nf6 8.O-O 
Be7 9.f4 exf4 10.Bxf4 O-O 11.Kh1 a6 12.Qe1 Ne5 13.Rd1 Ng6 14.Be3 Qc7 15.
Nd4 b5 16.a3 Rac8 17.Qg3 Bc4 18.Bd3 Rfd8 19.Nf5 d5 20.Qxc7 Rxc7 21.Bb6 
Rcd7 22.Bxd8 Bxd8 23.Bxc4 dxc4 24.Rxd7 Nxd7 25.Rd1 Nge5 26.Rd6 g6 27.Ng3 
Ba5 28.Rxa6 Bxc3 29.bxc3 h5 30.h4 Kf8 31.Ra5 Ke7 32.Rxb5 Kd6 33.Kg1 Kc6 
34.Rb4 Nc5 35.Kf2 Ncd3+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Sorin, Ariel"]
[Black "Urday, Henry"]
[Result "1/2-1/2"]
[ECO "E11"]
[EventDate "1986.??.??"]
[PlyCount "88"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 b6 5.a3 Bxd2+ 6.Bxd2 Bb7 7.Bg5 h6 8.Bh4
d6 9.e3 Nbd7 10.Bd3 Qe7 11.b4 g5 12.Bg3 h5 13.h3 h4 14.Bh2 g4 15.hxg4 Nxg4
16.Bg3 O-O-O 17.Nxh4 Bxg2 18.Rg1 Rxh4 19.Rxg2 Rh1+ 20.Bf1 f5 21.Qd2 e5 22.
O-O-O Qf7 23.Kb2 Ngf6 24.dxe5 dxe5 25.Qc2 Ne4 26.c5 Rxf1 27.Rxf1 Ndxc5 28.
Rd1 Rxd1 29.Qxd1 Qc4 30.bxc5 Qc3+ 31.Kb1 Nd2+ 32.Ka2 Nc4 33.Bxe5 Qxa3+ 34.
Kb1 Qb4+ 35.Kc1 Qa3+ 36.Kb1 Qb4+ 37.Kc1 Qa3+ 38.Kc2 Qa4+ 39.Kc1 Qa3+ 40.
Kb1 Qb4+ 41.Ka2 Qa3+ 42.Kb1 Qb4+ 43.Kc1 Qa3+ 44.Kb1 Qb4+ 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "11"]
[White "Trigueros, Gustavo"]
[Black "Moran, Bernardo"]
[Result "0-1"]
[ECO "C19"]
[EventDate "1986.??.??"]
[PlyCount "49"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.a4 Qa5 8.Qd2 
Nbc6 9.Nf3 Bd7 10.Bd3 f6 11.exf6 gxf6 12.O-O O-O-O 13.Qf4 Rdf8 14.Qd6 c4 
15.Be2 Nf5 16.Qa3 Qc7 17.a5 Rfg8 18.Qc5 Be8 19.Kh1 Bh5 20.g3 Nd6 21.Bf4 
Ne4 22.Bxc7 Nxc5 23.Bd6 Ne4 24.Bb4 Nxb4 25.cxb4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Araujo, Adalberto"]
[Black "Clavijo, Jose Luis"]
[Result "1/2-1/2"]
[ECO "B71"]
[EventDate "1986.??.??"]
[PlyCount "76"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Bg7 7.e5 Bg4 8.Bb5+ 
Kf8 9.Qd3 Nfd7 10.h3 a6 11.hxg4 axb5 12.exd6 Nc5 13.Qe3 b4 14.dxe7+ Qxe7 
15.Qxe7+ Kxe7 16.Nce2 Nc6 17.Nxc6+ bxc6 18.Be3 Na4 19.Bd4 Bxd4 20.Nxd4 Kd6
21.O-O-O Kc7 22.Rhe1 Rhe8 23.Nf3 f6 24.g5 f5 25.Ne5 Nb6 26.Kb1 Nd5 27.g3 
Reb8 28.Rd3 Rb7 29.Nc4 Rba7 30.a3 bxa3 31.Rxa3 Rxa3 32.Nxa3 Nc3+ 33.Kc1 
Ne4 34.Rh1 Rh8 35.Rh3 Nf2 36.Rh2 Ne4 37.Nc4 Nxg3 38.Ne5 Nh5 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Candan, Gonzalo"]
[Black "Trigueros, Gustavo"]
[Result "1-0"]
[ECO "D44"]
[EventDate "1986.??.??"]
[PlyCount "39"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 c6 5.Nf3 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.
exf6 gxh4 10.Ne5 Qxf6 11.Be2 Bd6 12.f4 Qxf4 13.Nxf7 Rf8 14.Nxd6+ Qxd6 15.
Bf3 a6 16.O-O Nd7 17.Ne4 Qc7 18.Qd2 Kd8 19.Qxh6 Qf4 20.Qxe6 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Matamoros, Carlos"]
[Black "Arencibia, Walter"]
[Result "1/2-1/2"]
[ECO "A43"]
[EventDate "1986.??.??"]
[PlyCount "29"]

1.d4 c5 2.d5 g6 3.e4 Bg7 4.Nc3 d6 5.Bb5+ Nd7 6.a4 a6 7.Be2 Ngf6 8.Nf3 O-O 
9.O-O Rb8 10.Re1 Ne8 11.Bf1 Nc7 12.a5 b5 13.axb6 Rxb6 14.Ra2 Rb4 15.Nb1 
1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Moran, Augusto"]
[Black "Pacheco, Juan Edgardo"]
[Result "0-1"]
[ECO "E12"]
[EventDate "1986.??.??"]
[PlyCount "88"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Be7 5.Nc3 Bb7 6.g3 O-O 7.d5 exd5 8.cxd5 b5 
9.Bg2 b4 10.axb4 Bxb4 11.Nh4 a5 12.O-O Na6 13.Nf5 Re8 14.Qd4 Nc5 15.Bg5 
Ra6 16.d6 Bxg2 17.Kxg2 Bxc3 18.bxc3 Nce4 19.Bxf6 Nxf6 20.Qf4 cxd6 21.Qg5 
g6 22.Ne3 Re5 23.Qf4 a4 24.Rfb1 a3 25.Qc4 Qa8+ 26.Kg1 a2 27.Rb2 Rea5 28.
Qc7 Qe4 29.Rb8+ Ne8 30.Qxd7 Kf8 31.Ng4 d5 32.Nh6 Ra7 33.Qc8 Qxe2 34.Ng4 
R5a6 35.Ne3 Re7 36.Nxd5 Qe1+ 37.Rxe1 Rxe1+ 38.Kg2 a1=Q 39.Qc5+ Kg7 40.Qd4+
Nf6 41.Qc5 Qa3 42.Qc8 Nxd5 43.Qh8+ Kh6 44.Rg8 Qxc3 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Moran, Bernardo"]
[Black "Sorin, Ariel"]
[Result "1/2-1/2"]
[ECO "E82"]
[EventDate "1986.??.??"]
[PlyCount "62"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 b6 7.Bd3 Nfd7 8.Qd2 c5 
9.d5 Ne5 10.Be2 e6 11.O-O-O exd5 12.Qxd5 Nbc6 13.Qxd6 Nd4 14.Qxd8 Rxd8 15.
b3 f5 16.f4 Nxe2+ 17.Ngxe2 Nd3+ 18.Kb1 fxe4 19.Nxe4 Bg4 20.Rd2 Nxf4 21.
Bxf4 Rxd2 22.Bxd2 Bxe2 23.Re1 Bd3+ 24.Kc1 Rf8 25.Ng5 Rf1 26.Rxf1 Bxf1 27.
g3 Be5 28.Ne6 Bh3 29.Bf4 Bf6 30.Ng5 Bf5 31.Nf3 Bd8 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Munoz, Hugo"]
[Black "Servat, Roberto"]
[Result "0-1"]
[ECO "C45"]
[EventDate "1986.??.??"]
[PlyCount "126"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.c4
Ba6 9.Bd2 O-O-O 10.Nc3 Re8 11.O-O-O Nb6 12.Qg4 Qe6 13.Qxe6 Rxe6 14.c5 Bxf1
15.cxb6 Bxg2 16.bxa7 Kb7 17.Rhg1 Bf3 18.Rde1 c5 19.Nb5 Ra6 20.Rg3 Bc6 21.
Nc3 Kxa7 22.f4 g6 23.a3 Be7 24.Rd3 Rb8 25.Be3 Kb7 26.Bf2 Kc8 27.Nd5 Bxd5 
28.Rxd5 Ra4 29.Be3 Rc4+ 30.Kb1 Re4 31.Bd2 Rxe1+ 32.Bxe1 d6 33.Rd3 Kd7 34.
Kc2 Kc6 35.Rf3 c4 36.Bc3 Kd5 37.f5 dxe5 38.fxg6 fxg6 39.Rf7 Bd6 40.Rxh7 e4
41.Rg7 Rh8 42.Rxg6 Rxh2+ 43.Kd1 e3 44.Rg4 e2+ 45.Ke1 Be7 46.a4 Bh4+ 47.
Rxh4 Rxh4 48.Kxe2 Ke4 49.Kf2 Rh2+ 50.Kg3 Rh6 51.a5 Re6 52.Bh8 Re8 53.Bc3 
Rf8 54.Bb4 Rf7 55.Bc3 Kd5 56.Bd2 Kc6 57.Bc3 Kb5 58.Bd2 Rd7 59.Bc3 Rd3+ 60.
Kf4 Rxc3 61.bxc3 Kxa5 62.Ke3 Ka4 63.Kd2 Kb3 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Rosito, Jorge"]
[Black "Rojas, Eduardo"]
[Result "0-1"]
[ECO "B85"]
[EventDate "1986.??.??"]
[PlyCount "60"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Qc7 7.O-O Nf6 8.Kh1 
Be7 9.a4 O-O 10.Be3 d6 11.f4 Re8 12.Qe1 e5 13.Nb3 Nb4 14.Qg3 Kh8 15.fxe5 
dxe5 16.Rad1 Bd7 17.a5 Bc6 18.Bd3 Bd6 19.Bb6 Qe7 20.Bc4 Nxc2 21.Qf2 Nd4 
22.Nxd4 exd4 23.Bxd4 Nxe4 24.Nxe4 Bxe4 25.Bxg7+ Kxg7 26.Qxf7+ Kh8 27.Qxe7 
Bxe7 28.Bf7 Red8 29.Rde1 Bd3 30.Rf3 Bb4 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "12"]
[White "Urday, Henry"]
[Black "Hernandez, Gilberto"]
[Result "1-0"]
[ECO "A08"]
[EventDate "1986.??.??"]
[PlyCount "55"]

1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.d3 g6 5.O-O Bg7 6.Nbd2 e6 7.e4 Nge7 8.c3 O-O 
9.Re1 b6 10.e5 Ba6 11.Nf1 h6 12.h4 d4 13.c4 Bb7 14.N1h2 Kh7 15.Bf4 Ng8 16.
Ng4 f5 17.exf6 Nxf6 18.Nfe5 Qc8 19.Nxf6+ Rxf6 20.Ng4 Rf5 21.Be4 e5 22.Bd2 
Ne7 23.h5 gxh5 24.Nxh6 Bxe4 25.dxe4 Bxh6 26.exf5 Bxd2 27.Rxe5 Qc7 28.Qxh5+
1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Arencibia, Walter"]
[Black "Rosito, Jorge"]
[Result "1-0"]
[ECO "E25"]
[EventDate "1986.??.??"]
[PlyCount "51"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Bxc3+ 6.bxc3 c5 7.cxd5 Nxd5 8.dxc5
Qa5 9.e4 Nf6 10.Be3 Nbd7 11.Qd4 O-O 12.Ne2 Rd8 13.Qb4 Qc7 14.Rd1 Nb8 15.
Rxd8+ Qxd8 16.Nd4 e5 17.Nb5 Na6 18.Qb2 Qa5 19.Bd3 Be6 20.O-O Nd7 21.Qf2 
Qa4 22.Nd6 Qxa3 23.Nxb7 Nc7 24.Qc2 a5 25.Rb1 a4 26.c4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Clavijo, Jose Luis"]
[Black "Munoz, Hugo"]
[Result "0-1"]
[ECO "B33"]
[EventDate "1986.??.??"]
[PlyCount "100"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nde2 Bb4 7.a3 Ba5 8.b4 
Bb6 9.Bg5 Bxf2+ 10.Kxf2 Ng4+ 11.Ke1 Qxg5 12.Qd2 Qh4+ 13.g3 Qf6 14.Nd5 Qf2+
15.Kd1 O-O 16.h3 Qf3 17.Rg1 Nf2+ 18.Kc1 Nxe4 19.Qe3 Qxe3+ 20.Nxe3 d6 21.
Bg2 Nf6 22.Rd1 Rd8 23.b5 Na5 24.Kb2 Rb8 25.Rd3 Be6 26.Rad1 Nc4+ 27.Kc1 e4 
28.Rc3 Nxe3 29.Rxe3 d5 30.Nd4 Bd7 31.Kb2 Rbc8 32.g4 Ne8 33.a4 Nd6 34.Re2 
a6 35.Nb3 Be8 36.Kb1 axb5 37.Rxd5 bxa4 38.Nc5 Bc6 39.Rd1 Nb5 40.Rxd8+ Rxd8
41.Kc1 Nc3 42.Re3 Nd1 43.Re2 a3 44.Nb3 Nc3 45.Re1 e3 46.Bxc6 bxc6 47.Nc5 
Rd5 48.Nd3 a2 49.Kb2 Rb5+ 50.Kxc3 Rb1 0-1

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Hernandez, Gilberto"]
[Black "Moran, Bernardo"]
[Result "1/2-1/2"]
[ECO "C06"]
[EventDate "1986.??.??"]
[PlyCount "70"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.c3 c5 6.Bd3 Nc6 7.Ne2 cxd4 8.cxd4 f6
9.exf6 Nxf6 10.O-O Bd6 11.f4 O-O 12.Nf3 Qb6 13.Kh1 Kh8 14.a3 a5 15.Nc3 Bd7
16.Be3 Be8 17.Ng5 Bf7 18.Rc1 Rae8 19.Na4 Qc7 20.Nc5 Bh5 21.Qe1 Qc8 22.Qh4 
h6 23.Nf3 Bxf3 24.Rxf3 Nd7 25.f5 Nxc5 26.dxc5 Be7 27.Qh5 Rf6 28.fxe6 Ref8 
29.Rxf6 Rxf6 30.Qxd5 Qxe6 31.Qxe6 Rxe6 32.Bf4 Bxc5 33.h4 Bd6 34.Bxd6 Rxd6 
35.Be4 Rd4 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Pacheco, Juan Edgardo"]
[Black "Matamoros, Carlos"]
[Result "1/2-1/2"]
[ECO "A57"]
[EventDate "1986.??.??"]
[PlyCount "72"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3 g6 5.cxb5 a6 6.e3 Bg7 7.Nc3 O-O 8.a4 Bb7 9.
Bc4 e6 10.bxa6 Nxa6 11.O-O Nb4 12.e4 Qb6 13.Re1 exd5 14.exd5 Ba6 15.Bxa6 
Qxa6 16.Ne5 d6 17.Nf3 Qc4 18.Nd2 Qd3 19.Nde4 Nxe4 20.Qxd3 Nxd3 21.Rxe4 
Rfb8 22.Re2 Nxb2 23.Bxb2 Rxb2 24.Rxb2 Bxc3 25.Rba2 Bxa1 26.Rxa1 Kg7 27.Kf1
Ra5 28.Ke2 Kf8 29.Kf3 Ke7 30.Ke4 Kd7 31.Kd3 Kc7 32.Kc4 Ra8 33.a5 Kb7 34.
Kb5 Rc8 35.Rc1 Ka7 36.g3 Rc7 1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Rojas, Eduardo"]
[Black "Urday, Henry"]
[Result "1-0"]
[ECO "E11"]
[EventDate "1986.??.??"]
[PlyCount "101"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Bg2 Bxd2+ 7.Nbxd2 d6 8.
O-O a5 9.e4 e5 10.d5 Nb8 11.Qc2 O-O 12.b3 c6 13.Rfc1 Na6 14.Ne1 Nd7 15.a3 
cxd5 16.cxd5 Ndc5 17.Nc4 Qd8 18.Ne3 Bd7 19.Rab1 b5 20.b4 axb4 21.axb4 Na4 
22.Nf5 g6 23.Ne3 Qb6 24.Qd2 f5 25.exf5 gxf5 26.Bh3 Rf7 27.N3g2 Raf8 28.Nf3
Kh8 29.Ng5 Rg7 30.Ne6 Bxe6 31.dxe6 Nc7 32.Ne3 Nxe6 33.Bxf5 Ng5 34.Qd5 Qd4 
35.Rb3 Nb6 36.Qxb5 Nf3+ 37.Kh1 Rxf5 38.Nxf5 Qxf2 39.Qe8+ Rg8 40.Qh5 Ne1 
41.Qh3 Nd5 42.Nxd6 Rf8 43.Rc8 Rxc8 44.Qxc8+ Kg7 45.Qd7+ Kh6 46.Nf7+ Kh5 
47.Qh3+ Kg6 48.Nxe5+ Kg7 49.Rf3 Nxf3 50.Qd7+ Kh8 51.Qe8+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Servat, Roberto"]
[Black "Moran, Augusto"]
[Result "1-0"]
[ECO "C10"]
[EventDate "1986.??.??"]
[PlyCount "83"]

1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Bd3 Be7 8.
O-O O-O 9.Bg5 b6 10.Qe2 Bb7 11.Rad1 Re8 12.c4 Qc8 13.Ne5 c5 14.Bxf6 Bxf6 
15.Bxh7+ Kf8 16.Be4 cxd4 17.Bxb7 Qxb7 18.Rxd4 Rad8 19.Rfd1 Rxd4 20.Rxd4 
Rd8 21.Rxd8+ Bxd8 22.Qf3 Qxf3 23.Nxf3 Bf6 24.b3 Ke7 25.Kf1 Kd6 26.Ke2 Kc5 
27.Kd3 Kb4 28.Kc2 Ka3 29.Kb1 a5 30.h4 a4 31.Kc2 Kxa2 32.bxa4 Ka3 33.c5 
bxc5 34.a5 Bd8 35.a6 Bb6 36.Ne5 Ka4 37.Nc6 Kb5 38.a7 Bxa7 39.Nxa7+ Kb6 40.
g4 Kxa7 41.h5 f6 42.f4 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Sorin, Ariel"]
[Black "Candan, Gonzalo"]
[Result "1-0"]
[ECO "D36"]
[EventDate "1986.??.??"]
[PlyCount "57"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.cxd5 exd5 7.Bd3 Be7 8.Qc2 
O-O 9.Nf3 Re8 10.O-O Nf8 11.Rab1 Be6 12.b4 N8d7 13.Na4 h6 14.Bxf6 Bxf6 15.
b5 cxb5 16.Bxb5 Rc8 17.Qb3 b6 18.Nc3 Be7 19.Nxd5 Bf8 20.e4 Bxd5 21.Qxd5 
Nf6 22.Qxd8 Rexd8 23.Bd3 Rc3 24.Rb3 Rxb3 25.axb3 Rc8 26.e5 Nd5 27.Bc4 Nc3 
28.e6 b5 29.exf7+ 1-0

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "13"]
[White "Trigueros, Gustavo"]
[Black "Araujo, Adalberto"]
[Result "1/2-1/2"]
[ECO "B46"]
[EventDate "1986.??.??"]
[PlyCount "27"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 a6 6.Be2 Nge7 7.O-O Nxd4 8.
Qxd4 Nc6 9.Qd3 Qc7 10.Bg5 Bd6 11.Qh3 O-O 12.Rad1 b5 13.a3 f6 14.Be3 
1/2-1/2

[Event "11th Pan-American U20"]
[Site "Quito ECU"]
[Date "1986.09.??"]
[Round "15"]
[White "Hernandez, Gilberto"]
[Black "Araujo, Adalberto"]
[Result "1/2-1/2"]
[ECO "B32"]
[EventDate "1986.??.??"]
[PlyCount "40"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 a6 6.Nd6+ Bxd6 7.Qxd6 Qf6 8.
Qd1 Qg6 9.Nc3 Nge7 10.Be3 d5 11.Nxd5 Nxd5 12.Qxd5 Be6 13.Qd2 Qxe4 14.f3 
Qh4+ 15.Bf2 Qf6 16.Bd3 O-O 17.O-O Rfd8 18.Qe1 Qe7 19.Bb6 Rd7 20.a3 f5 
1/2-1/2

