[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Anez, Jorge"]
[Black "Medrano, David"]
[Result "1-0"]
[ECO "C06"]
[EventDate "2002.??.??"]
[PlyCount "77"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 f6
9.f4 fxe5 10.fxe5 Nxd4 11.Nxd4 Qh4+ 12.g3 Qxd4 13.Nf3 Bb4+ 14.Kf1 Qg4 15.
Kg2 O-O 16.Bxh7+ Kh8 17.Bc2 Bc5 18.Qd3 Qh5 19.Rf1 b6 20.Bf4 a5 21.Qb5 Ba6 
22.Qxd7 Rxf4 23.gxf4 Qg4+ 24.Kh1 Be2 25.Ng5 Bxf1 26.Rxf1 Qe2 27.Nf7+ Kg8 
28.Nh6+ gxh6 29.Qxe6+ Kf8 30.Qxh6+ Ke7 31.Qh7+ Kf8 32.Qd3 Qh5 33.Qxd5 Re8 
34.Bb3 Qg6 35.f5 Qh7 36.f6 a4 37.Bxa4 Qh3 38.Bb5 Be3 39.f7 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Borda, Alan"]
[Black "Mieles Palau, Daniel"]
[Result "0-1"]
[ECO "B22"]
[EventDate "2002.??.??"]
[PlyCount "106"]

1.e4 c5 2.c3 b6 3.d4 Bb7 4.Bd3 cxd4 5.cxd4 Nc6 6.Nf3 Nb4 7.Nc3 Nxd3+ 8.
Qxd3 a5 9.Bf4 Nf6 10.h3 e6 11.O-O Ba6 12.Nb5 Nxe4 13.Qxe4 Bxb5 14.Rfe1 d5 
15.Qe5 h6 16.a3 a4 17.Rac1 Bc4 18.Nd2 b5 19.Nxc4 bxc4 20.Re3 Rg8 21.Qh5 g6
22.Qg4 Ra6 23.Rce1 Qd7 24.Be5 f5 25.Qf3 Qf7 26.Bh2 Qd7 27.Be5 Kf7 28.Qe2 
Bg7 29.Qd2 Rb6 30.Bh2 Re8 31.R1e2 Rb3 32.Rxb3 cxb3 33.Re3 Rc8 34.Rc3 Rc4 
35.Be5 Rxc3 36.Qxc3 Bxe5 37.dxe5 d4 38.Qd3 Qd5 39.f4 Qe4 40.Qd2 d3 41.Kf2 
Qd4+ 42.Kf3 g5 43.g3 Kg6 44.Kg2 gxf4 45.gxf4 Qe4+ 46.Kf2 Kh5 47.Kg3 Qe2 
48.Qxe2+ dxe2 49.Kf2 Kh4 50.Kxe2 h5 51.Kf2 Kxh3 52.Kf3 h4 53.Kf2 Kg4 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Castellanos, Renier"]
[Black "Cabrera, Andres"]
[Result "1-0"]
[ECO "B96"]
[EventDate "2002.??.??"]
[PlyCount "89"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qc7 8.Bxf6 
gxf6 9.Qd2 h5 10.Be2 b5 11.O-O-O Nd7 12.a3 Nb6 13.Rhe1 Bb7 14.Kb1 Nc4 15.
Bxc4 Qxc4 16.f5 Bc8 17.Qf2 b4 18.axb4 a5 19.bxa5 Rxa5 20.fxe6 fxe6 21.Nb3 
Ra8 22.Qxf6 Rh6 23.Qg5 Ba6 24.Rxd6 Qc7 25.Red1 Bc4 26.Nb5 Qb8 27.Rd8+ Qxd8
28.Rxd8+ Rxd8 29.N3d4 Rd7 30.b3 Bxb5 31.Qxb5 Bg7 32.e5 Ke7 33.Qb4+ Kf7 34.
Nf3 Rg6 35.Qf4+ Kg8 36.Qe4 Rxg2 37.h4 Rd5 38.Qc4 Rg3 39.Qc8+ Kh7 40.Qe8 
Rd1+ 41.Kb2 Kh6 42.Qxe6+ Rg6 43.Qf5 Rf1 44.Qf4+ Kh7 45.Ng5+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Mafra, Kaiser Luiz"]
[Black "Uriarte, Carlos"]
[Result "1/2-1/2"]
[ECO "B23"]
[EventDate "2002.??.??"]
[PlyCount "58"]

1.e4 c5 2.Nc3 g6 3.f4 Bg7 4.Nf3 e6 5.Be2 Ne7 6.O-O Nbc6 7.d3 O-O 8.Qe1 d5 
9.Qh4 Nd4 10.Nxd4 cxd4 11.Nd1 dxe4 12.dxe4 b6 13.Bd3 Nc6 14.Qg3 Nb4 15.Bd2
Nxd3 16.cxd3 f5 17.e5 Qd7 18.Bb4 Re8 19.b3 a5 20.Bd6 Bf8 21.Nb2 Bxd6 22.
exd6 b5 23.a4 Ba6 24.axb5 Bxb5 25.Qe1 Qxd6 26.Rxa5 Reb8 27.Nc4 Bxc4 28.
Rxa8 Rxa8 29.bxc4 Kf7 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Nakamura, Hikaru"]
[Black "Cabrejos, Jose"]
[Result "1-0"]
[ECO "C45"]
[EventDate "2002.??.??"]
[PlyCount "53"]

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.b3 O-O-O 10.Bb2 c5 11.g3 Nb4 12.Bg2 d5 13.O-O dxc4 14.bxc4 Qe6 15.
Nd2 Nd3 16.Bc3 Nxe5 17.Bxe5 f6 18.Qh5 Qxe5 19.Bh3+ Kb8 20.Rab1+ Bb7 21.Qf3
c6 22.Qxc6 Qc7 23.Rxb7+ Qxb7 24.Rb1 Qxb1+ 25.Nxb1 Be7 26.Qb5+ Kc7 27.Nc3 
1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Pacheco, Marco"]
[Black "Chavez, Fernando"]
[Result "1-0"]
[ECO "B07"]
[EventDate "2002.??.??"]
[PlyCount "139"]

1.d4 g6 2.e4 Bg7 3.Nf3 d6 4.c3 Nf6 5.Bd3 O-O 6.O-O Nbd7 7.Bg5 c5 8.Nbd2 h6
9.Bh4 Nh5 10.d5 Nf4 11.Bc2 b5 12.Re1 Ne5 13.Nxe5 Bxe5 14.Bg3 g5 15.Nf3 Bg4
16.Bxf4 gxf4 17.Qd3 c4 18.Qe2 Kh8 19.Bd1 Rg8 20.Kh1 Rg6 21.Qd2 Bxf3 22.
Bxf3 Qd7 23.a4 bxa4 24.Ra3 Rag8 25.Qe2 h5 26.Rea1 h4 27.h3 f5 28.exf5 Rg5 
29.Rxa4 Qxf5 30.Rxc4 Qg6 31.Qe4 Qxe4 32.Bxe4 Rb8 33.b4 Rb7 34.Ra6 Rg8 35.
Kg1 Kg7 36.Kf1 Kf6 37.Ke2 Rd8 38.Kd3 Rdd7 39.Rc8 Rbc7 40.Rc6 Rxc8 41.Rxc8 
a5 42.Kc4 axb4 43.cxb4 Bb2 44.b5 Ke5 45.f3 Bd4 46.Rf8 Rc7+ 47.Kb4 Bc5+ 48.
Kc3 e6 49.Re8 Kf6 50.Rxe6+ Kf7 51.Rh6 Bf2+ 52.Kd3 Ke7 53.Bf5 Bg3 54.Re6+ 
Kd8 55.b6 Rc5 56.Rxd6+ Ke7 57.Rd7+ Kf6 58.b7 Rb5 59.Kc4 Rb6 60.Be4 Bf2 61.
Rd6+ Rxd6 62.b8=Q Ke7 63.Qc7+ Rd7 64.Qxf4 Bg3 65.Qg5+ Kd6 66.Qf6+ Kc7 67.
Bf5 Rd6 68.Qf8 Kb6 69.Qb8+ Ka6 70.Bc8+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Parraga, Alejandro"]
[Black "Prasca, Raphael"]
[Result "1/2-1/2"]
[ECO "A84"]
[EventDate "2002.??.??"]
[PlyCount "69"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.Nf3 Nf6 6.Bd3 Bd6 7.O-O Ne4 8.Nd2 O-O 
9.f4 Nxd2 10.Bxd2 Nd7 11.Be1 b6 12.Rc1 Bb7 13.Qe2 Qe7 14.Nb1 Nf6 15.Bh4 
Qd7 16.Nd2 Ne4 17.Nf3 c5 18.Ne5 Bxe5 19.dxe5 dxc4 20.Bxc4 h6 21.Rfd1 Qf7 
22.Bb5 Bd5 23.a3 g5 24.Be1 Rfd8 25.b4 cxb4 26.Bxb4 a5 27.Be1 Nc5 28.Rc3 
Be4 29.Rd6 Rxd6 30.exd6 Rd8 31.d7 Qg7 32.Rxc5 bxc5 33.Bxa5 Rxd7 34.Bxd7 
Qxd7 35.Bc3 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Ramirez, Alejandro"]
[Black "Bustamante, Richard"]
[Result "0-1"]
[ECO "B09"]
[EventDate "2002.??.??"]
[PlyCount "114"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5 6.Bb5+ Bd7 7.e5 Ng4 8.e6 Bxb5 
9.exf7+ Kd7 10.Nxb5 Qa5+ 11.Nc3 cxd4 12.Nxd4 Bxd4 13.Qxd4 Nc6 14.Qc4 Qb6 
15.Qe2 h5 16.h3 Nh6 17.Bd2 Nf5 18.O-O-O Ng3 19.Qd3 Nxh1 20.Rxh1 Raf8 21.
Qxg6 Nd8 22.Rd1 Rxf7 23.Nd5 Qc6 24.Bb4 Qb5 25.a3 Kc8 26.Qe4 Re8 27.g4 hxg4
28.hxg4 Qd7 29.g5 Qf5 30.Qe3 Nc6 31.Bxd6 Rd8 32.Be5 e6 33.Nf6 Rxd1+ 34.
Kxd1 Nxe5 35.Qxe5 Qxe5 36.fxe5 Kd8 37.Ke2 Rg7 38.Ne4 Rc7 39.Kd3 Ke8 40.c4 
Kf7 41.c5 Kg6 42.b4 Rd7+ 43.Nd6 Kxg5 44.b5 Rh7 45.a4 Rh3+ 46.Kc4 Rh4+ 47.
Kb3 Rh7 48.a5 Kf4 49.b6 axb6 50.axb6 Kxe5 51.Kc4 Rd7 52.Nxb7 Rxb7 53.Kb5 
Rb8 54.Kc6 Rc8+ 55.Kb5 Kd5 56.c6 Rxc6 57.b7 Rc1 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "1"]
[White "Roldan, Rodrigo"]
[Black "Andrade, Ulises"]
[Result "0-1"]
[ECO "C67"]
[EventDate "2002.??.??"]
[PlyCount "24"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.dxe5 Nf5 7.Qd3 d5 8.e6 
Bxe6 9.Ne5 Ne7 10.Re1 a6 11.Bxc6+ Nxc6 12.Nxf7 Kxf7 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Andrade, Ulises"]
[Black "Castellanos, Renier"]
[Result "0-1"]
[ECO "B25"]
[EventDate "2002.??.??"]
[PlyCount "54"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.f4 d6 6.Nf3 e5 7.d3 Nge7 8.O-O O-O 
9.Be3 Nd4 10.Qd2 exf4 11.Bxf4 Nxf3+ 12.Rxf3 Qb6 13.Raf1 Be6 14.Bg5 Nc6 15.
Rf4 Qxb2 16.Nd5 Bxd5 17.exd5 Nd4 18.Be7 Bh6 19.Bxd6 Bxf4 20.gxf4 Rfe8 21.
f5 Qb6 22.fxg6 hxg6 23.Rf6 Nf5 24.Be4 Nxd6 25.Bxg6 fxg6 26.Qh6 Qb1+ 27.Rf1
Qb2 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Bustamante, Richard"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "D97"]
[EventDate "2002.??.??"]
[PlyCount "62"]

1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.d4 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Na6 8.e5 
Nd7 9.a3 Nb6 10.Qb3 Be6 11.Qd1 c5 12.Bxa6 bxa6 13.dxc5 Nd7 14.Be3 Qb8 15.
Qe2 Nxe5 16.Nxe5 Bxe5 17.Rc1 Rd8 18.b4 Bf5 19.Qxa6 Bd3 20.Qa4 Bxh2 21.b5 
Be5 22.Qh4 h5 23.a4 Bf6 24.Qh2 Qc8 25.Qh3 Qc7 26.g4 Bxc3+ 27.Rxc3 Qe5 28.
Rc1 Qb2 29.Qf3 Rd4 30.gxh5 Qb4+ 31.Bd2 Re4+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Cabrejos, Jose"]
[Black "Ramirez, Alejandro"]
[Result "1-0"]
[ECO "B50"]
[EventDate "2002.??.??"]
[PlyCount "77"]

1.e4 c5 2.Nf3 d6 3.d3 Nf6 4.g3 g6 5.Bg2 Bg7 6.O-O O-O 7.Re1 Nc6 8.Nbd2 h6 
9.Nf1 d5 10.e5 Ng4 11.h4 Ncxe5 12.Nxe5 Nxe5 13.Bxh6 Bxh6 14.Rxe5 Bg7 15.
Rxd5 Qb6 16.h5 Be6 17.Rg5 Bf6 18.hxg6 Bxg5 19.Qh5 Kg7 20.Qxg5 fxg6 21.Qe5+
Kf7 22.Re1 Qd6 23.Qg5 Rh8 24.Be4 Rag8 25.Ne3 b5 26.c4 Kf8 27.Nd5 Rg7 28.
Re3 Rh5 29.Rf3+ Kg8 30.Qf4 Kh8 31.Qf8+ Kh7 32.Nf6+ Kh6 33.Qh8+ Kg5 34.Nxh5
Rg8 35.Qh7 gxh5 36.Rf5+ Bxf5 37.Qxf5+ Kh6 38.Qh7+ Kg5 39.f4+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Cabrera, Andres"]
[Black "Roldan, Rodrigo"]
[Result "1/2-1/2"]
[ECO "B33"]
[EventDate "2002.??.??"]
[PlyCount "140"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 e5 6.Ndb5 d6 7.Nd5 Nxd5 8.
exd5 Nb8 9.c4 a6 10.Nc3 Be7 11.Be2 O-O 12.O-O Nd7 13.f4 f5 14.Kh1 Bf6 15.
Qc2 b6 16.g4 fxg4 17.Bxg4 exf4 18.Be6+ Kh8 19.Bxf4 Ne5 20.Ne4 Qe7 21.Bxe5 
Bxe5 22.Ng5 g6 23.Rf7 Rxf7 24.Nxf7+ Kg7 25.Nxe5 Bxe6 26.Nc6 Qc7 27.Re1 Re8
28.Qc3+ Kg8 29.Kg1 Bf7 30.Rxe8+ Bxe8 31.Qf3 Qf7 32.Qe4 Kf8 33.Qd4 Bxc6 34.
dxc6 Qe7 35.Qh8+ Kf7 36.Qxh7+ Kf6 37.Qh4+ Ke6 38.Qd4 Qg5+ 39.Kf2 Qf5+ 40.
Ke3 Qh3+ 41.Kd2 Qxh2+ 42.Kd3 Qg3+ 43.Kc2 Qg2+ 44.Kb3 Qxc6 45.Qg4+ Kf6 46.
Qf4+ Kg7 47.Qd4+ Kh7 48.Qh4+ Kg8 49.Qd8+ Kf7 50.a3 b5 51.cxb5 axb5 52.Ka2 
d5 53.Qb8 Qc4+ 54.Ka1 Kf6 55.Qd8+ Kf5 56.Qd7+ Kg5 57.Qe7+ Kf4 58.Qf6+ Ke3 
59.Qg5+ Ke2 60.Qg2+ Ke1 61.Qg3+ Kd1 62.Qg1+ Kc2 63.Qf2+ Kb3 64.Qe3+ Kc2 
65.Qf2+ Kd3 66.Qg3+ Kd2 67.Qg2+ Ke1 68.Qg3+ Kf1 69.Qf3+ Ke1 70.Qg3+ Ke2 
1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Medrano, David"]
[Black "Borda, Alan"]
[Result "0-1"]
[ECO "D35"]
[EventDate "2002.??.??"]
[PlyCount "42"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.cxd5 exd5 6.Nxd5 Nxd5 7.Bxd8 Bb4+ 
8.Qd2 Bxd2+ 9.Kxd2 Kxd8 10.e4 N5f6 11.Bd3 Nb6 12.Nf3 Ke7 13.Rhe1 Rd8 14.h3
c6 15.Rad1 Kf8 16.Kc1 Be6 17.Bb1 Rac8 18.Nh2 Nh5 19.Rf1 Bc4 20.Rfe1 Nf4 
21.g3 Ne2+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Mieles Palau, Daniel"]
[Black "Anez, Jorge"]
[Result "1-0"]
[ECO "B33"]
[EventDate "2002.??.??"]
[PlyCount "57"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nf5 d5 7.exd5 Bxf5 8.
dxc6 bxc6 9.Qf3 Qc8 10.Ba6 Bg4 11.Qd3 Qc7 12.O-O Rd8 13.Qg3 Bd6 14.Bg5 h5 
15.h3 Bf5 16.Bxf6 gxf6 17.Qf3 Qd7 18.Rad1 Bxc2 19.Rd2 Bg6 20.Qxf6 O-O 21.
Rfd1 Be7 22.Qxe5 Qe6 23.Qxe6 fxe6 24.Bc4 Bf7 25.Rd7 Bf6 26.Ne4 Bh4 27.g3 
Rxd7 28.Rxd7 Rd8 29.gxh4 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Prasca, Raphael"]
[Black "Mafra, Kaiser Luiz"]
[Result "1-0"]
[ECO "B12"]
[EventDate "2002.??.??"]
[PlyCount "71"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.c3 e6 5.Be3 Na6 6.Ne2 Qb6 7.b4 Nb8 8.Ng3 Bg6 9.
Nd2 a5 10.a3 Nd7 11.Nb3 axb4 12.axb4 Rxa1 13.Qxa1 Bc2 14.Nc1 f6 15.Kd2 Bg6
16.f4 Nh6 17.Qa8+ Ke7 18.Bd3 Ng4 19.Re1 Nxe3 20.Rxe3 Bxd3 21.Nxd3 f5 22.
Re1 g6 23.Nf1 Bg7 24.Qa3 Qb5 25.Ne3 Nb6 26.Qa7 Ra8 27.Qxb7+ Kf8 28.Nc5 
Ra2+ 29.Kc1 Kg8 30.Kb1 Rd2 31.Nc2 Bf8 32.Na3 Re2 33.Nxb5 Rxe1+ 34.Kc2 Nc4 
35.Qxc6 Re2+ 36.Kd1 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Uriarte, Carlos"]
[Black "Parraga, Alejandro"]
[Result "0-1"]
[ECO "B04"]
[EventDate "2002.??.??"]
[PlyCount "102"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.c4 Nb6 6.Be2 Bg7 7.O-O O-O 8.Be3 Nc6 
9.exd6 cxd6 10.Nc3 Bg4 11.b3 d5 12.c5 Nd7 13.h3 Bxf3 14.Bxf3 Nxc5 15.Rc1 
Ne6 16.Ne2 Qa5 17.a4 Rfd8 18.h4 Qb4 19.Rxc6 bxc6 20.h5 Rab8 21.hxg6 hxg6 
22.Bg4 Qxb3 23.Qc1 Qc4 24.Qd2 Qb4 25.Qc1 Nxd4 26.Nxd4 Bxd4 27.Bf4 e5 28.
Bg5 Bxf2+ 29.Rxf2 Qxg4 30.Bxd8 Rxd8 31.Qxc6 Qd7 32.Qf6 Re8 33.g3 Qe7 34.
Qc6 Qe6 35.Qc7 Re7 36.Qb8+ Kg7 37.Rh2 Qb6+ 38.Qxb6 axb6 39.Rb2 Re6 40.Kf2 
f5 41.Rc2 Kf6 42.Rc8 e4 43.Ke3 Ke5 44.Rd8 g5 45.Rf8 f4+ 46.gxf4+ gxf4+ 47.
Ke2 d4 48.Rh8 d3+ 49.Ke1 e3 50.Rh5+ Ke4 51.Rb5 d2+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "2"]
[White "Vasquez, Michael"]
[Black "Pacheco, Marco"]
[Result "0-1"]
[ECO "C24"]
[EventDate "2002.??.??"]
[PlyCount "67"]

1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Be3 d5 5.exd5 Nxd5 6.Qf3 Be6 7.c3 Be7 8.Nd2 
O-O 9.Qe2 f5 10.Nb3 b6 11.Nf3 Bf6 12.Rd1 Qe7 13.O-O Rad8 14.d4 e4 15.Ne5 
Nxe5 16.dxe5 Bxe5 17.f4 Nxe3 18.Bxe6+ Qxe6 19.Qxe3 Bf6 20.Nc1 Qc4 21.h3 
Be7 22.Kh2 Bc5 23.Qe2 Qxe2 24.Nxe2 Kf7 25.g3 Ke6 26.Kg2 Be3 27.h4 c5 28.c4
Bd4 29.b3 a6 30.Rfe1 b5 31.Kf1 bxc4 32.bxc4 Bf6 33.Nc1 Bc3 34.Nb3 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Anez, Jorge"]
[Black "Vasquez, Michael"]
[Result "0-1"]
[ECO "B43"]
[EventDate "2002.??.??"]
[PlyCount "44"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be3 Nf6 7.Be2 b5 8.a3 d6 
9.f4 Bb7 10.Bf3 Nbd7 11.Nb3 Be7 12.O-O Rc8 13.Kh1 O-O 14.Qe2 Nc5 15.Nxc5 
dxc5 16.e5 Nd5 17.Nxd5 exd5 18.c3 f6 19.exf6 Bxf6 20.Rad1 Rcd8 21.Qc2 Rfe8
22.Rd3 c4 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Borda, Alan"]
[Black "Prasca, Raphael"]
[Result "0-1"]
[ECO "C03"]
[EventDate "2002.??.??"]
[PlyCount "62"]

1.e4 e6 2.d4 d5 3.Nd2 Be7 4.e5 c5 5.c3 Nc6 6.Nb3 cxd4 7.cxd4 Bd7 8.f4 Rc8 
9.Bd2 Qb6 10.Nf3 Nh6 11.Bd3 Nb4 12.Bb1 Bb5 13.Bc3 a5 14.Qd2 Bc4 15.Nc1 Qc7
16.Ne2 Nc6 17.Kf2 Ng4+ 18.Kg3 h5 19.h3 Nh6 20.Rc1 Qd7 21.Kf2 b6 22.Ng3 g6 
23.Nf1 h4 24.Ne3 Ba6 25.a3 Nf5 26.Bd3 Ng3 27.Kg1 Bxd3 28.Qxd3 Nh5 29.Ng4 
Nxf4 30.Qe3 Nh5 31.Ng5 Ng3 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Chavez, Fernando"]
[Black "Bustamante, Richard"]
[Result "0-1"]
[ECO "B07"]
[EventDate "2002.??.??"]
[PlyCount "88"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.g3 Bg7 5.Bg2 Nc6 6.Nge2 O-O 7.O-O e5 8.h3 exd4
9.Nxd4 Nxe4 10.Nxc6 Nxc3 11.Nxd8 Nxd1 12.Nxb7 Nxb2 13.Bxb2 Bxb2 14.Rab1 
Be5 15.Na5 Ba6 16.Bxa8 Bxf1 17.Kxf1 Rxa8 18.Nc6 a5 19.Rb7 Bf6 20.Rxc7 Ra6 
21.Ke2 a4 22.Ne7+ Kg7 23.Nd5 Be5 24.Kd3 a3 25.f4 Ba1 26.c3 Ra5 27.Kc4 Ra4+
28.Nb4 Kf6 29.Rc6 Ke6 30.Ra6 Rxa6 31.Nxa6 Kf5 32.Kd4 h5 33.Nb4 h4 34.g4+ 
Kxf4 35.Nc2 Bb2 36.Kd3 Kg3 37.Ke3 Kxh3 38.Kf3 Kh2 39.c4 Kg1 40.Ne1 Be5 41.
Nd3 h3 42.Nxe5 dxe5 43.c5 h2 44.Ke4 f6 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Mafra, Kaiser Luiz"]
[Black "Andrade, Ulises"]
[Result "0-1"]
[ECO "A45"]
[EventDate "2002.??.??"]
[PlyCount "110"]

1.d4 Nf6 2.e3 d6 3.Nf3 g6 4.Bd3 Bg7 5.O-O O-O 6.e4 Nbd7 7.Bg5 h6 8.Bh4 e5 
9.c3 c6 10.Nbd2 Qc7 11.Qc2 Re8 12.dxe5 dxe5 13.a4 Nc5 14.Nc4 Nh5 15.Ne1 
Be6 16.Be2 Nf4 17.b4 b5 18.axb5 cxb5 19.Na3 Nb3 20.Rb1 Nd4 21.cxd4 Qxc2 
22.Nexc2 Nxe2+ 23.Kh1 Nc3 24.d5 Nxb1 25.Rxb1 Bd7 26.f3 a5 27.bxa5 Rxa5 28.
Be1 Ra4 29.Bb4 Bf8 30.h3 Bxb4 31.Rxb4 Rc8 32.Rb3 f5 33.Nb4 Rc1+ 34.Kh2 
fxe4 35.fxe4 Re1 36.d6 Rxe4 37.Nd5 Kf7 38.Rf3+ Ke6 39.Nc7+ Kxd6 40.Naxb5+ 
Kc5 41.Nc3 Kd4 42.N7b5+ Kc5 43.Nc7 Bc6 44.Rf6 Rac4 45.Nxe4+ Bxe4 46.Rf2 
Rc2 47.Kg3 Rxf2 48.Kxf2 Bd5 49.g3 Bf7 50.Na6+ Kb5 51.Nb8 Be6 52.h4 Kb6 53.
Ke3 Kb7 54.Ke4 h5 55.Kxe5 Bf5 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Nakamura, Hikaru"]
[Black "Castellanos, Renier"]
[Result "1-0"]
[ECO "B23"]
[EventDate "2002.??.??"]
[PlyCount "47"]

1.e4 c5 2.Nc3 d6 3.f4 g6 4.d4 cxd4 5.Qxd4 Nf6 6.e5 Nc6 7.Bb5 dxe5 8.Qxd8+ 
Kxd8 9.fxe5 Nxe5 10.Bf4 Nc6 11.O-O-O+ Bd7 12.Bc4 Nh5 13.Be3 Kc8 14.Nf3 Bg7
15.Bxf7 Rf8 16.Ng5 Ne5 17.Be6 h6 18.Bxd7+ Nxd7 19.Ne6 Rf6 20.Nxg7 Nxg7 21.
Bxh6 Nf5 22.Bg5 Re6 23.g4 Nd6 24.Bxe7 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Pacheco, Marco"]
[Black "Mieles Palau, Daniel"]
[Result "0-1"]
[ECO "E00"]
[EventDate "2002.??.??"]
[PlyCount "56"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 c6 5.Nbd2 Bb4 6.Qc2 dxc4 7.Qxc4 Qe7 8.Bg2 
Nbd7 9.O-O O-O 10.e4 Ba5 11.e5 Nd5 12.Ne4 h6 13.Bd2 Bc7 14.Rfe1 Rd8 15.h4 
Nf8 16.Rad1 Bd7 17.Nh2 b6 18.Ng4 Nh7 19.Bf1 c5 20.dxc5 h5 21.Ne3 Bxe5 22.
Nxd5 exd5 23.Qxd5 Bg4 24.Nd6 Nf6 25.Qb7 Qxb7 26.Nxb7 Bxd1 27.Nxd8 Rxd8 28.
cxb6 axb6 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Parraga, Alejandro"]
[Black "Cabrejos, Jose"]
[Result "0-1"]
[ECO "A85"]
[EventDate "2002.??.??"]
[PlyCount "98"]

1.d4 f5 2.c4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Qc2 d6 6.g3 O-O 7.Bg2 Qe8 8.O-O e5 
9.dxe5 dxe5 10.e4 f4 11.Nd5 Na6 12.b3 c6 13.Nxf6+ Bxf6 14.gxf4 exf4 15.e5 
Bg7 16.Re1 Bf5 17.Qe2 Bg4 18.Ba3 Rf5 19.Bd6 Rd8 20.Rad1 Rh5 21.Qe4 Bxf3 
22.Bxf3 Rg5+ 23.Kh1 Qe6 24.Qxf4 h6 25.Rg1 Rxg1+ 26.Rxg1 g5 27.Bg4 Qxd6 28.
exd6 gxf4 29.d7 Kf8 30.Re1 Nc5 31.Rd1 Ne4 32.Kg2 Nf6 33.Bf5 Ke7 34.Re1+ 
Kd6 35.Re6+ Kc7 36.Re7 Bh8 37.Kf3 Nxd7 38.Kxf4 Bf6 39.Rh7 Bg5+ 40.Kg4 Kd6 
41.c5+ Nxc5 42.h4 Bd2 43.f4 Rg8+ 44.Kf3 Rf8 45.Rxh6+ Kd5 46.Kg4 Rg8+ 47.
Rg6 Rxg6+ 48.Bxg6 Ke6 49.Kg5 Ke7 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Ramirez, Alejandro"]
[Black "Cabrera, Andres"]
[Result "1-0"]
[ECO "B49"]
[EventDate "2002.??.??"]
[PlyCount "99"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 Nc6 7.O-O Nf6 8.Be3 
b5 9.Nxc6 dxc6 10.f4 Bb7 11.Bf3 Be7 12.Qe2 b4 13.Nb1 c5 14.Nd2 Bc6 15.c4 
Qb7 16.Bf2 O-O 17.Bh4 Ne8 18.Bxe7 Qxe7 19.e5 Bxf3 20.Rxf3 Rd8 21.Ne4 Rd4 
22.Re1 h6 23.b3 Qc7 24.Qf2 Qd8 25.h3 Kh8 26.Nxc5 Rd2 27.Re2 Rxe2 28.Qxe2 
Qd4+ 29.Qf2 Qa1+ 30.Kh2 a5 31.Rd3 Rg8 32.Qe2 Qc1 33.Qd2 Qa1 34.Qd1 Qb2 35.
Ne4 Qa3 36.Qc2 Nc7 37.Nd2 a4 38.bxa4 b3 39.axb3 Na6 40.Rd7 Qf8 41.Ne4 Qe8 
42.Qd1 Rf8 43.Qd6 Qa8 44.Ra7 Qxa7 45.Qxf8+ Kh7 46.Nd6 Kg6 47.Ne8 Kf5 48.
Qxg7 Kxf4 49.Qg3+ Ke4 50.Nd6+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "3"]
[White "Roldan, Rodrigo"]
[Black "Uriarte, Carlos"]
[Result "0-1"]
[ECO "B95"]
[EventDate "2002.??.??"]
[PlyCount "44"]

1.e4 c5 2.Nc3 e6 3.Nf3 a6 4.d4 cxd4 5.Nxd4 d6 6.Qf3 Nf6 7.Bg5 Nbd7 8.O-O-O
Qc7 9.Qg3 h6 10.Be3 b5 11.Bxb5 axb5 12.Ndxb5 Qb7 13.Rxd6 Nxe4 14.Nxe4 Qxb5
15.Nc3 Bxd6 16.Qxg7 Qe5 17.Qg4 Rb8 18.g3 h5 19.Qa4 Qf5 20.Rd1 Be5 21.Qa7 
Rb7 22.Qa6 O-O 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Andrade, Ulises"]
[Black "Pacheco, Marco"]
[Result "0-1"]
[ECO "E29"]
[EventDate "2002.??.??"]
[PlyCount "78"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.a3 Bxc3+ 6.bxc3 c5 7.Bd3 Nc6 8.Ne2 
b6 9.O-O d5 10.cxd5 exd5 11.Ng3 Re8 12.f3 Bb7 13.Qd2 Rc8 14.Qf2 Rc7 15.Bb2
Na5 16.Rae1 cxd4 17.cxd4 Nc4 18.Bc1 Nd6 19.Ne2 Qc8 20.Qg3 Nc4 21.Nf4 Rce7 
22.Qf2 b5 23.g4 Nd7 24.Qh4 Nf8 25.Qf2 Qc7 26.Bxc4 bxc4 27.Qc2 Ne6 28.Ne2 
Qd6 29.Bd2 Rd7 30.Ra1 Bc6 31.Kg2 Rb7 32.Nc3 Reb8 33.Rfb1 Rb3 34.Be1 R8b6 
35.Bg3 Qd7 36.Bf2 Qb7 37.Rxb3 Rxb3 38.Rb1 a5 39.Bg3 Rxc3 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Bustamante, Richard"]
[Black "Parraga, Alejandro"]
[Result "1-0"]
[ECO "D38"]
[EventDate "2002.??.??"]
[PlyCount "83"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 Bb4 5.a3 Bxc3+ 6.bxc3 Ne4 7.Qc2 O-O 8.Bf4 
b6 9.h3 Bb7 10.cxd5 Qxd5 11.Nd2 Qf5 12.Be3 Nd7 13.Nxe4 Bxe4 14.Qd2 Rfd8 
15.f3 Bb7 16.Bf2 c5 17.e4 Qg6 18.Bh4 Nf6 19.e5 cxd4 20.exf6 dxc3 21.Qg5 
Rac8 22.Qxg6 hxg6 23.fxg7 Rd4 24.Bg5 c2 25.Be2 Kxg7 26.Kf2 e5 27.Be3 Rd6 
28.Ra2 Bd5 29.Rb2 Rc3 30.Bd2 Rc7 31.Bb4 Rdc6 32.Rc1 a5 33.Bd2 a4 34.Bb5 
Rf6 35.Bxa4 e4 36.Rbxc2 Rxc2 37.Rxc2 Rd6 38.Bc3+ f6 39.fxe4 Bxe4 40.Rd2 
Re6 41.Bd7 Re7 42.Rd6 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Cabrejos, Jose"]
[Black "Vasquez, Michael"]
[Result "1/2-1/2"]
[ECO "A04"]
[EventDate "2002.??.??"]
[PlyCount "155"]

1.e4 c5 2.d3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.O-O Nge7 7.Re1 O-O 8.c3 d6 
9.Nbd2 e5 10.a4 h6 11.Nc4 Be6 12.Ne3 d5 13.exd5 Nxd5 14.Nc4 Qc7 15.Qe2 f6 
16.d4 cxd4 17.cxd4 Ndb4 18.dxe5 fxe5 19.Nfxe5 Nd4 20.Qe4 Bxc4 21.Qxd4 Nc2 
22.Bd5+ Kh7 23.Qxc4 Qxc4 24.Nxc4 Nxa1 25.Bxh6 Bxh6 26.Rxa1 Rac8 27.b3 Rfd8
28.Bxb7 Rb8 29.Na5 Rd7 30.Bc6 Rc7 31.Rd1 Bf8 32.Be4 Re8 33.f3 Bc5+ 34.Kg2 
Ree7 35.Nc4 Kg7 36.Rd5 Red7 37.Rg5 Bd4 38.Rxg6+ Kf7 39.Rh6 Kg7 40.Rh7+ Kf6
41.Rxd7 Rxd7 42.h4 Rd8 43.f4 Rb8 44.Bc2 Rg8 45.Kf3 Rh8 46.Nd6 Bb2 47.Bd3 
Ba3 48.Ne4+ Kg7 49.Bc4 Be7 50.Kg4 Rd8 51.f5 Rd4 52.Kf3 Rd1 53.h5 Bd8 54.g4
Rh1 55.g5 Rxh5 56.Kg4 Rh1 57.f6+ Kg6 58.Ng3 Rg1 59.Bd3+ Kf7 60.Kh4 Bxf6 
61.gxf6 Kxf6 62.Ne4+ Ke5 63.Nf2 Kd4 64.Bc4 Kc3 65.Ne4+ Kb4 66.Nf6 a5 67.
Nd5+ Kc5 68.Ne3 Kd4 69.Nf1 Kc5 70.Kh3 Kb4 71.Kh2 Rg7 72.Ng3 Ka3 73.Kg2 Rb7
74.Bb5 Kxb3 75.Nf5 Kb4 76.Nd4 Kc5 77.Ne6+ Kb4 78.Bc6 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Cabrera, Andres"]
[Black "Mafra, Kaiser Luiz"]
[Result "0-1"]
[ECO "B70"]
[EventDate "2002.??.??"]
[PlyCount "48"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Bg7 7.Bg2 O-O 8.O-O 
Bg4 9.Nde2 Qc8 10.f3 Bh3 11.Nf4 Bxg2 12.Kxg2 Nc6 13.h4 Re8 14.h5 Ne5 15.
hxg6 hxg6 16.Nfd5 Nxd5 17.Nxd5 e6 18.Ne3 Qc6 19.Qe2 Rac8 20.Bd2 d5 21.f4 
d4 22.Nd1 Nc4 23.Bc1 f5 24.Nf2 Nd6 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Castellanos, Renier"]
[Black "Prasca, Raphael"]
[Result "0-1"]
[ECO "C12"]
[EventDate "2002.??.??"]
[PlyCount "76"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Bxc3 7.bxc3 Ne4 8.Qg4 
Kf8 9.Bd3 Nxd2 10.Kxd2 c5 11.h4 Nc6 12.Rh3 c4 13.Bf1 Qe7 14.a4 Rb8 15.Ne2 
Qe8 16.h5 Qe7 17.Nf4 Rg8 18.Rf3 Ke8 19.Nh3 a6 20.a5 b5 21.axb6 Rxb6 22.Qf4
a5 23.g4 Rb7 24.g5 hxg5 25.Nxg5 Rh8 26.Qg4 f6 27.Nh3 fxe5 28.Qg6+ Kd8 29.
Ng5 Rf8 30.Rxf8+ Qxf8 31.Nxe6+ Bxe6 32.Qxe6 Qxf2+ 33.Be2 exd4 34.Qg8+ Kc7 
35.Qxg7+ Kb8 36.Qh8+ Ka7 37.cxd4 c3+ 38.Kd3 Qg3+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Chavez, Fernando"]
[Black "Borda, Alan"]
[Result "1-0"]
[ECO "C41"]
[EventDate "2002.??.??"]
[PlyCount "133"]

1.e4 e5 2.Nf3 d6 3.Bc4 Be7 4.O-O Nf6 5.Re1 O-O 6.c3 Nbd7 7.d4 c6 8.Bb3 Qc7
9.Nbd2 h6 10.Nf1 Re8 11.Ng3 Nf8 12.Nh4 Ne6 13.Nhf5 Bf8 14.Nh5 Nxh5 15.Qxh5
Kh7 16.Qh4 Be7 17.Qg3 Bf6 18.d5 Nc5 19.dxc6 Nxe4 20.cxb7 Bxb7 21.Qd3 Nc5 
22.Qxd6 Qxd6 23.Nxd6 Nxb3 24.axb3 Re7 25.Be3 Bd5 26.c4 Be6 27.Nb5 a6 28.
Ra5 Rd7 29.Nc3 e4 30.Nxe4 Bxb2 31.Ra2 Be5 32.Nc5 Rd6 33.Nxe6 Rxe6 34.Kf1 
Rae8 35.Rae2 Bc3 36.Rc1 Bd4 37.c5 Be5 38.b4 Bxh2 39.g3 Bxg3 40.fxg3 Rxe3 
41.Rce1 Rxe2 42.Rxe2 Rb8 43.Re4 Rc8 44.Ke2 Kg6 45.Kd3 a5 46.bxa5 Rxc5 47.
Ra4 f5 48.a6 Rc8 49.a7 Ra8 50.Kc4 Kh5 51.Kc5 g5 52.Kb6 g4 53.Kb7 Rxa7+ 54.
Kxa7 Kg5 55.Kb6 h5 56.Kc5 h4 57.gxh4+ Kxh4 58.Kd5 Kh3 59.Ke5 g3 60.Kf4 Kh2
61.Kf3 g2 62.Ra2 f4 63.Rxg2+ Kh1 64.Rg4 Kh2 65.Kf2 Kh3 66.Rxf4 Kh2 67.Rh4#
1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Medrano, David"]
[Black "Ramirez, Alejandro"]
[Result "0-1"]
[ECO "A57"]
[EventDate "2002.??.??"]
[PlyCount "40"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nd2 b4 5.e4 d6 6.Bd3 g6 7.f4 Bg7 8.Ngf3 O-O 9.
O-O e6 10.e5 Nh5 11.dxe6 fxe6 12.exd6 Qxd6 13.Ne4 Qc7 14.Ne5 Nd7 15.Be3 
Nxf4 16.Nxd7 Bxd7 17.Bxc5 Bc6 18.Bd6 Bd4+ 19.Kh1 Qxd6 20.Qg4 Qe5 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Mieles Palau, Daniel"]
[Black "Nakamura, Hikaru"]
[Result "1/2-1/2"]
[ECO "B23"]
[EventDate "2002.??.??"]
[PlyCount "53"]

1.e4 c5 2.Nc3 d6 3.f4 g6 4.Nf3 Bg7 5.Bc4 Nc6 6.O-O e6 7.d3 Nge7 8.Qe1 O-O 
9.f5 d5 10.Bb3 dxe4 11.f6 exf3 12.fxg7 Kxg7 13.Rxf3 Nd4 14.Rf2 Nef5 15.Ne4
h5 16.Nxc5 Qe7 17.Ne4 a5 18.c3 Nxb3 19.axb3 f6 20.b4 Rd8 21.d4 b6 22.bxa5 
Rxa5 23.Rxa5 bxa5 24.Ng3 Nd6 25.Ne4 Nf5 26.Ng3 Nd6 27.Ne4 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "4"]
[White "Uriarte, Carlos"]
[Black "Anez, Jorge"]
[Result "0-1"]
[ECO "B30"]
[EventDate "2002.??.??"]
[PlyCount "96"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.c3 a6 6.Ba4 b5 7.Bc2 d5 8.exd5 
Nxd5 9.d4 cxd4 10.Nxd4 Nxd4 11.Qxd4 Qf6 12.Qxf6 Nxf6 13.Bg5 Be7 14.Nd2 Bb7
15.Rad1 Rc8 16.Bxf6 gxf6 17.Be4 Bxe4 18.Nxe4 Rd8 19.Rxd8+ Kxd8 20.Rd1+ Kc7
21.Kf1 f5 22.Nd2 Rd8 23.Ke2 Kc6 24.Nb3 Rxd1 25.Kxd1 Kd5 26.Ke2 Bf6 27.Kd3 
e5 28.f3 e4+ 29.Ke3 b4 30.cxb4 Bxb2 31.Nd2 Bd4+ 32.Ke2 Bc3 33.a3 Bxd2 34.
Kxd2 Kc4 35.g4 exf3 36.gxf5 Kb3 37.Ke3 Kxa3 38.Kxf3 Kxb4 39.Kf4 a5 40.Kg5 
a4 41.Kh6 a3 42.Kxh7 a2 43.Kg7 a1=Q+ 44.Kxf7 Kc5 45.f6 Kd6 46.h4 Qe5 47.
Kg7 Ke6 48.Kh7 Kxf6 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Andrade, Ulises"]
[Black "Cabrejos, Jose"]
[Result "1/2-1/2"]
[ECO "A80"]
[EventDate "2002.??.??"]
[PlyCount "153"]

1.d4 f5 2.Bg5 Nf6 3.Bxf6 exf6 4.e3 d5 5.Bd3 Be6 6.Ne2 Bd6 7.Nd2 O-O 8.Nf4 
Bf7 9.Qf3 Bxf4 10.Qxf4 g6 11.h4 Be6 12.Nf1 c5 13.dxc5 Nc6 14.c3 Rc8 15.Ng3
Ne5 16.Bc2 Rxc5 17.h5 Rc4 18.e4 g5 19.Qd2 fxe4 20.O-O-O Qa5 21.Bb3 Nd3+ 
22.Kb1 Rc6 23.f3 Nf4 24.fxe4 dxe4 25.Nxe4 Bxb3 26.axb3 Qf5 27.Qc2 Re6 28.
Rd4 Rfe8 29.Nd6 Re1+ 30.Rd1 Qxc2+ 31.Kxc2 R8e2+ 32.Kb1 Rxh1 33.Rxh1 Rxg2 
34.h6 b6 35.Re1 Re2 36.Rxe2 Nxe2 37.Kc2 Nf4 38.Kd2 a6 39.Ke3 Kf8 40.Ke4 b5
41.Kf5 Ke7 42.Ne4 Nd5 43.Nc5 a5 44.Ke4 Nb6 45.Kf5 a4 46.bxa4 Nxa4 47.Ne4 
g4 48.Kxg4 Ke6 49.Kf4 Nxb2 50.Nc5+ Kf7 51.Kf5 Nc4 52.Ne4 Ne3+ 53.Kf4 Nd5+ 
54.Kf5 Ne7+ 55.Kf4 Kg6 56.Kg3 f5 57.Nd6 Nd5 58.Nxb5 Kxh6 59.c4 Ne7 60.Kf4 
Kg6 61.c5 h5 62.Nd4 Kf6 63.Nf3 Ng6+ 64.Ke3 h4 65.Kd4 h3 66.Kd5 Ke7 67.c6 
Kd8 68.Nh2 Kc7 69.Ke6 Nh4 70.Ke5 Kxc6 71.Kf4 Kd5 72.Kg3 Ng6 73.Kxh3 Ke4 
74.Kg2 Ne5 75.Kf2 Kf4 76.Nf1 Ng4+ 77.Ke2 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Anez, Jorge"]
[Black "Castellanos, Renier"]
[Result "0-1"]
[ECO "B93"]
[EventDate "2002.??.??"]
[PlyCount "58"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 g6 8.Nf3 
Nbd7 9.O-O Bg7 10.Qe1 e5 11.Qh4 O-O 12.fxe5 dxe5 13.Bh6 Qb6+ 14.Kh1 Qxb2 
15.Nd5 Nxd5 16.exd5 f6 17.Bxg7 Kxg7 18.Qg3 Nc5 19.Bc4 Qc3 20.Bb3 a5 21.Qe1
Qxe1 22.Rfxe1 b5 23.d6 a4 24.Bd5 Ra6 25.Rab1 Rxd6 26.Rxb5 Rxd5 27.c4 Ba6 
28.Ra5 Bxc4 29.Rc1 Rb8 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Borda, Alan"]
[Black "Uriarte, Carlos"]
[Result "1-0"]
[ECO "C40"]
[EventDate "2002.??.??"]
[PlyCount "121"]

1.e4 e5 2.Nf3 f5 3.exf5 e4 4.Nd4 Nf6 5.d3 c5 6.Ne2 d5 7.Ng3 exd3 8.Qxd3 
Nc6 9.Bg5 Be7 10.Be2 O-O 11.O-O b6 12.Rd1 Bb7 13.Bf3 Ne5 14.Qe3 Nxf3+ 15.
Qxf3 Qd7 16.Nd2 Kh8 17.Qd3 Rae8 18.Nf3 Bd6 19.Re1 Bxg3 20.hxg3 Ne4 21.Rad1
Qf7 22.g4 h5 23.Bh4 hxg4 24.Ng5 Qh5 25.Nxe4 Qxh4 26.Nd6 Rxe1+ 27.Rxe1 Bc6 
28.Qe3 d4 29.Qe7 Qxe7 30.Rxe7 a5 31.Nf7+ Kg8 32.Ne5 Be4 33.Ng6 Bxc2 34.
Nxf8 Kxf8 35.Rd7 Bxf5 36.Rb7 Bb1 37.a3 d3 38.Kf1 Bc2 39.Ke1 c4 40.Rxb6 Kf7
41.Kd2 g6 42.Rc6 Bb3 43.Rc5 a4 44.Rg5 Kf6 45.Rxg4 g5 46.Rd4 Ke5 47.Ke3 Ba2
48.g3 Bb3 49.f4+ gxf4+ 50.Rxf4 Ba2 51.Kd2 Bb3 52.Rf1 Kd4 53.g4 Bc2 54.g5 
Bb3 55.g6 c3+ 56.bxc3+ Kc5 57.g7 Be6 58.Rf8 Kc4 59.g8=Q Bxg8 60.Rxg8 Kb3 
61.Kxd3 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Mafra, Kaiser Luiz"]
[Black "Medrano, David"]
[Result "1-0"]
[ECO "C13"]
[EventDate "2002.??.??"]
[PlyCount "77"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 a6 7.Bxe7 Qxe7 8.Qg4 
Kf8 9.f4 c5 10.Nf3 Nc6 11.O-O-O b5 12.h5 h6 13.Rh3 f5 14.Qg3 cxd4 15.Nh4 
Kg8 16.Ng6 Qc5 17.Nxh8 dxc3 18.Qxc3 Qb6 19.Ng6 Nc5 20.b4 Ne4 21.Qxc6 Qxc6 
22.Ne7+ Kf7 23.Nxc6 Nf2 24.Rc3 Nxd1 25.Kxd1 Bb7 26.Nd8+ Rxd8 27.Rc7+ Kf8 
28.Rxb7 Ra8 29.Kd2 a5 30.a3 axb4 31.axb4 Ra1 32.Bxb5 Rg1 33.Be2 Rxg2 34.b5
g5 35.hxg6 Rxg6 36.b6 Rg1 37.Rh7 Rb1 38.b7 Kg8 39.Rc7 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Nakamura, Hikaru"]
[Black "Pacheco, Marco"]
[Result "1/2-1/2"]
[ECO "A26"]
[EventDate "2002.??.??"]
[PlyCount "173"]

1.c4 Nf6 2.Nc3 e5 3.g3 Nc6 4.Bg2 g6 5.e4 Bg7 6.d3 d6 7.Nge2 Be6 8.O-O Qd7 
9.f4 O-O 10.Nd5 exf4 11.Ndxf4 Bg4 12.h3 Bxe2 13.Nxe2 Ne5 14.Be3 c5 15.Qd2 
Rab8 16.b3 b5 17.Rad1 Ne8 18.cxb5 Qxb5 19.d4 cxd4 20.Nxd4 Qb7 21.Bh6 Qb4 
22.Qe3 Rc8 23.Bxg7 Nxg7 24.Qd2 Qxd2 25.Rxd2 Rfd8 26.Rfd1 Nh5 27.Kf2 Rc3 
28.Ne2 Rc6 29.Nd4 Rc3 30.Nf3 Nxf3 31.Bxf3 Ng7 32.Rxd6 Rxd6 33.Rxd6 Ne6 34.
Rd2 Kg7 35.h4 h5 36.e5 Nc5 37.Ke2 a5 38.Rb2 Nd7 39.Kf2 Nxe5 40.Be2 Nc6 41.
Rd2 Ne7 42.Rd7 Kf6 43.Rd6+ Kg7 44.Ra6 Nf5 45.Rxa5 Nxg3 46.Bc4 Nf5 47.Ra7 
Nd6 48.Bd5 Rd3 49.Bf3 Nf5 50.Be4 Rd2+ 51.Ke1 Rb2 52.Bxf5 gxf5 53.Ra6 f4 
54.Kf1 f6 55.Kg1 Kg6 56.Ra5 Kh6 57.Ra4 Kg6 58.Ra5 Kh6 59.Kf1 Kg6 60.Ke1 f3
61.Kf1 Kh6 62.a3 Rxb3 63.Kf2 Kg6 64.Kg3 Kh6 65.Ra8 Kg6 66.a4 Ra3 67.a5 Kf5
68.a6 f2+ 69.Kxf2 Kg4 70.Ke2 Kxh4 71.Kd2 Kh3 72.Ke2 h4 73.Kf2 Kh2 74.a7 h3
75.Kf1 Ra2 76.Rf8 Rxa7 77.Rxf6 Ra1+ 78.Kf2 Ra2+ 79.Kf1 Rg2 80.Rf3 Rg7 81.
Kf2 Rg2+ 82.Kf1 Rg1+ 83.Kf2 Ra1 84.Rb3 Ra2+ 85.Kf1 Ra1+ 86.Kf2 Ra6 87.Rf3 
1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Parraga, Alejandro"]
[Black "Roldan, Rodrigo"]
[Result "1/2-1/2"]
[ECO "E93"]
[EventDate "2002.??.??"]
[PlyCount "126"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7 8.Bg5 h6 
9.Bh4 Re8 10.Nd2 Nf8 11.Bg3 N6d7 12.Qc2 c6 13.O-O g5 14.Rfd1 c5 15.Bg4 Nf6
16.Bxc8 Rxc8 17.Nf1 Ng6 18.Ne3 g4 19.Qe2 h5 20.Nf5 Nh7 21.h4 a6 22.Qe3 Qf6
23.a3 Ne7 24.Qd3 Nf8 25.b4 Nd7 26.Rab1 Rb8 27.Rf1 Bh8 28.f3 gxf3 29.Rxf3 
Qg6 30.Qe3 Bg7 31.Rbf1 Nxf5 32.exf5 Qh6 33.Qxh6 Bxh6 34.Ne4 Bf8 35.bxc5 
dxc5 36.f6 Bh6 37.Rf5 Kh7 38.Nd6 Rg8 39.Bxe5 Rg4 40.Bf4 Bxf4 41.R1xf4 Rxf4
42.Rxf4 Kg6 43.Ne4 b5 44.cxb5 axb5 45.Kh2 b4 46.axb4 cxb4 47.Rf2 b3 48.Rb2
Nxf6 49.Nd2 Nxd5 50.Rxb3 Rxb3 51.Nxb3 Kf5 52.Kg3 Kg6 53.Nc5 Kf5 54.Kf3 Nf4
55.g3 Ng6 56.Nb3 Ne5+ 57.Kf2 Ng6 58.Nd2 Kg4 59.Nf3 f5 60.Nh2+ Kh3 61.Nf3 
Kg4 62.Kg2 f4 63.Nh2+ Kf5 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Prasca, Raphael"]
[Black "Mieles Palau, Daniel"]
[Result "1-0"]
[ECO "B22"]
[EventDate "2002.??.??"]
[PlyCount "55"]

1.e4 c5 2.Nf3 Nc6 3.c3 d5 4.exd5 Qxd5 5.d4 Bg4 6.Be2 Nf6 7.h3 Bh5 8.c4 Qd7
9.d5 Bxf3 10.Bxf3 Nd4 11.Be3 Nxf3+ 12.Qxf3 Rc8 13.O-O g6 14.Nc3 Bg7 15.
Rfe1 O-O 16.Bf4 Ne8 17.Be5 Nd6 18.Bxg7 Kxg7 19.b3 Rfe8 20.a4 a5 21.Ne4 b6 
22.Qc3+ Kg8 23.Nxd6 exd6 24.Qf6 Rcd8 25.f3 h5 26.Kf2 Rxe1 27.Rxe1 Rf8 28.
Re7 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Ramirez, Alejandro"]
[Black "Chavez, Fernando"]
[Result "1-0"]
[ECO "B09"]
[EventDate "2002.??.??"]
[PlyCount "69"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nf6 5.Nf3 O-O 6.Bd3 Nc6 7.O-O Bg4 8.e5 Bxf3
9.Rxf3 dxe5 10.dxe5 Nd5 11.Nxd5 Qxd5 12.Qe1 Nd4 13.Rh3 Rad8 14.Be3 Qe6 15.
Qb4 Nc6 16.Qxb7 Rb8 17.Qa6 Rxb2 18.Bc4 Qd7 19.Bb3 Nd4 20.Qd3 Rd8 21.Rd1 
Qxh3 22.gxh3 Nf3+ 23.Kf2 Rxd3 24.Rxd3 Nh4 25.Rd8+ Bf8 26.Bxa7 Nf5 27.Bc5 
Kg7 28.a4 Rb1 29.a5 Ra1 30.Ra8 Rh1 31.Kg2 Ra1 32.a6 Ra5 33.a7 Rxc5 34.Rxf8
Kxf8 35.a8=Q+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "5"]
[White "Vasquez, Michael"]
[Black "Bustamante, Richard"]
[Result "0-1"]
[ECO "B07"]
[EventDate "2002.??.??"]
[PlyCount "46"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bg5 Bg7 5.Qd2 h6 6.Bf4 g5 7.Bg3 Nh5 8.O-O-O 
Nc6 9.Nge2 Bd7 10.f3 Nxg3 11.hxg3 e6 12.f4 Qf6 13.e5 dxe5 14.dxe5 Qe7 15.
Ne4 O-O-O 16.Qe3 Kb8 17.N2c3 a6 18.Nc5 Bc8 19.Be2 Rxd1+ 20.Rxd1 h5 21.Bf3 
gxf4 22.gxf4 Nxe5 23.Nxa6+ bxa6 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Bustamante, Richard"]
[Black "Mieles Palau, Daniel"]
[Result "0-1"]
[ECO "D60"]
[EventDate "2002.??.??"]
[PlyCount "70"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 c6 5.Bg5 Nbd7 6.e3 Be7 7.Bd3 O-O 8.O-O a6 
9.a3 dxc4 10.Bxc4 b5 11.Ba2 c5 12.dxc5 Nxc5 13.Qe2 Bb7 14.Rfd1 Qb6 15.Rd4 
h6 16.Bh4 Rad8 17.Rad1 Rfe8 18.b4 Nce4 19.Nxe4 Nxe4 20.Bxe7 Rxd4 21.Rxd4 
Rxe7 22.Bb1 Nf6 23.Qd3 Re8 24.Nd2 Qc7 25.f3 e5 26.Rd6 e4 27.Qd4 exf3 28.
gxf3 Qc1+ 29.Kf2 Qh1 30.Qf4 Nd5 31.Qe5 Kf8 32.Qg3 Nxe3 33.Be4 Nd1+ 34.Ke2 
Nc3+ 35.Kd3 Nxe4 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Castellanos, Renier"]
[Black "Cabrejos, Jose"]
[Result "1-0"]
[ECO "C40"]
[EventDate "2002.??.??"]
[PlyCount "55"]

1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Nc3 Qg6 7.Bf4 Nf6 8.Qd2 
Be7 9.O-O-O Bg4 10.Re1 O-O 11.f3 Nh5 12.Be3 exf3 13.gxf3 Bd7 14.Rg1 Qf7 
15.Bg5 Bxg5 16.Rxg5 Nf4 17.Ne3 Be6 18.d5 Bd7 19.Bc4 h6 20.Rg3 Nh5 21.Rgg1 
Qf4 22.Ne2 Qf7 23.Nd4 Nf4 24.Ne6 Nxe6 25.dxe6 Bxe6 26.Bxe6 Qxe6 27.Nd5 Qh3
28.Qd4 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Chavez, Fernando"]
[Black "Andrade, Ulises"]
[Result "0-1"]
[ECO "C65"]
[EventDate "2002.??.??"]
[PlyCount "52"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.Qe2 Bc5 5.O-O d6 6.h3 O-O 7.c3 Qe7 8.Rd1 Bb6
9.d3 Kh8 10.Nbd2 Nh5 11.Nf1 f5 12.Bg5 Qf7 13.d4 Qg6 14.exf5 Bxf5 15.Bxc6 
e4 16.Bxb7 Rae8 17.Nh4 Qxg5 18.Nxf5 Qxf5 19.Ne3 Qf7 20.Rf1 Nf4 21.Qg4 Re6 
22.Bd5 Nxd5 23.Nxd5 Rg6 24.Qxe4 Re8 25.Qxe8+ Qxe8 26.Rae1 Re6 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Medrano, David"]
[Black "Cabrera, Andres"]
[Result "0-1"]
[ECO "D43"]
[EventDate "2002.??.??"]
[PlyCount "42"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Nbd7 5.e3 c6 6.Nf3 Be7 7.Bd3 b6 8.O-O Bb7 
9.Qe2 O-O 10.Rac1 c5 11.Rfd1 Ne4 12.Bf4 cxd4 13.exd4 Nxc3 14.Rxc3 dxc4 15.
Bxc4 Nf6 16.Bd3 Nd5 17.Bxh7+ Kxh7 18.Ng5+ Bxg5 19.Rh3+ Bh6 20.Bxh6 gxh6 
21.Qd3+ f5 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Pacheco, Marco"]
[Black "Ramirez, Alejandro"]
[Result "1/2-1/2"]
[ECO "A46"]
[EventDate "2002.??.??"]
[PlyCount "106"]

1.d4 Nf6 2.Nf3 c5 3.g3 cxd4 4.Nxd4 d5 5.Bg2 Nc6 6.O-O e5 7.Nxc6 bxc6 8.c4 
Be6 9.Nc3 Rc8 10.cxd5 cxd5 11.Qa4+ Qd7 12.Qxd7+ Kxd7 13.Rd1 Bc5 14.Nxd5 
Nxd5 15.Bxd5 Bxd5 16.Rxd5+ Ke6 17.Rd3 Rhd8 18.Rc3 Rd1+ 19.Kg2 Kd7 20.Kf3 
Rf1 21.e3 Bb4 22.Ke2 Rh1 23.Rxc8 Kxc8 24.a3 Re1+ 25.Kd3 e4+ 26.Kxe4 Bd2 
27.Bxd2 Rxa1 28.Bc3 g6 29.Ke5 Kd7 30.Kf6 Ke8 31.Bd4 a6 32.Ke5 Re1 33.Kd6 
Re2 34.Kc6 Rxf2 35.Kb6 Rxh2 36.Kxa6 Rg2 37.a4 Kd7 38.b4 Rxg3 39.b5 Rg1 40.
a5 Rg5 41.b6 Kc6 42.e4 Rb5 43.e5 h5 44.Bf2 g5 45.Be3 g4 46.Bf2 Rxe5 47.b7 
Rxa5+ 48.Kxa5 Kxb7 49.Kb5 Kc7 50.Kc5 Kd7 51.Kd5 f6 52.Ke4 Ke6 53.Kf4 f5 
1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Parraga, Alejandro"]
[Black "Borda, Alan"]
[Result "1-0"]
[ECO "D36"]
[EventDate "2002.??.??"]
[PlyCount "71"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Nbd7 6.e3 c6 7.Qc2 Be7 8.Bd3 
O-O 9.Nge2 Re8 10.f3 Nf8 11.O-O Nh5 12.Bxe7 Qxe7 13.e4 Nf6 14.e5 N6d7 15.
f4 Nb6 16.Rae1 c5 17.b3 Bd7 18.Qd2 cxd4 19.Nxd4 Qc5 20.Ne2 Rac8 21.Kh1 Bg4
22.Rc1 Qe7 23.Bf5 Bxe2 24.Qxe2 Ne6 25.Rxc8 Rxc8 26.Qg4 Re8 27.Bxe6 fxe6 
28.f5 exf5 29.Nxf5 Qxe5 30.Nh6+ Kh8 31.Nf7+ Kg8 32.Nxe5 Rxe5 33.Qf4 Nd7 
34.Qf7+ Kh8 35.Qf8+ Nxf8 36.Rxf8# 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Prasca, Raphael"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "B51"]
[EventDate "2002.??.??"]
[PlyCount "126"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 cxd4 5.Qxd4 Qc7 6.Nc3 e6 7.O-O Ne7 8.
Bxd7+ Bxd7 9.Rd1 Ng6 10.Be3 a6 11.a4 Rc8 12.a5 Ne5 13.Nxe5 dxe5 14.Qd3 Bc6
15.Bb6 Qe7 16.Rab1 Qb4 17.Qh3 Bd6 18.Qe3 Be7 19.f3 O-O 20.Kh1 Bb5 21.Nxb5 
Qxb5 22.c3 Bc5 23.Bxc5 Rxc5 24.b4 Rc7 25.h3 Rfc8 26.Rd3 h6 27.Rbd1 Kh7 28.
Qd2 Rc4 29.Rd7 R8c7 30.Qd6 Qa4 31.Rxc7 Rxc7 32.Qxc7 Qxd1+ 33.Kh2 Qd2 34.
Qxf7 Qxc3 35.Qxb7 Qd2 36.Qb6 Qf4+ 37.Kh1 Qc1+ 38.Qg1 Qb2 39.Qc5 h5 40.Kh2 
h4 41.Qd6 Qb3 42.Qxa6 Qxb4 43.Qb6 Qe1 44.a6 Qg3+ 45.Kh1 Qe1+ 46.Qg1 Qa5 
47.a7 g5 48.Kh2 Kg6 49.Qf2 Kh6 50.Qe3 Kh5 51.Qg1 Kh6 52.Qf2 Kg6 53.Qe3 Kh5
54.Qb3 Qxa7 55.Qxe6 Qc5 56.Qf7+ Kh6 57.Qf6+ Kh5 58.Qg7 Qd6 59.g4+ hxg3+ 
60.Kxg3 Qb6 61.Qh7+ Qh6 62.Qf7+ Qg6 63.Qxg6+ Kxg6 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Roldan, Rodrigo"]
[Black "Anez, Jorge"]
[Result "1-0"]
[ECO "B78"]
[EventDate "2002.??.??"]
[PlyCount "69"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 
Nc6 9.Bc4 Bd7 10.O-O-O Rc8 11.Bb3 Ne5 12.h4 h5 13.Bh6 Bxh6 14.Qxh6 Rxc3 
15.bxc3 Qa5 16.g4 Qxc3 17.Kb1 a5 18.Qd2 Qc5 19.g5 a4 20.gxf6 axb3 21.cxb3 
exf6 22.Rc1 Qb6 23.Rc3 Be6 24.Rhc1 Qb4 25.Nxe6 fxe6 26.Qh6 Qd4 27.Qe3 Qxe3
28.Rxe3 f5 29.Rc7 fxe4 30.fxe4 Nf3 31.Rxb7 Nxh4 32.a4 g5 33.a5 Ra8 34.Rc3 
g4 35.a6 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "6"]
[White "Vasquez, Michael"]
[Black "Mafra, Kaiser Luiz"]
[Result "0-1"]
[ECO "B33"]
[EventDate "2002.??.??"]
[PlyCount "60"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Bxf6 
gxf6 9.Na3 b5 10.Nd5 f5 11.Bxb5 axb5 12.Nxb5 Ra7 13.Nxa7 Qa5+ 14.c3 Qxa7 
15.b4 fxe4 16.Nf6+ Kd8 17.Nxe4 Kc7 18.Nf6 Bb7 19.b5 Nd8 20.Nd5+ Kb8 21.O-O
Rg8 22.c4 Ne6 23.Kh1 Qa3 24.f3 Qb2 25.Rg1 Rg6 26.g3 Nd4 27.a4 Bxd5 28.cxd5
Nf5 29.b6 Ne3 30.Qd3 Qxh2+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Bustamante, Richard"]
[Black "Prasca, Raphael"]
[Result "1/2-1/2"]
[ECO "D43"]
[EventDate "2002.??.??"]
[PlyCount "24"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 c6 5.Bg5 h6 6.Bh4 dxc4 7.a4 g5 8.Bg3 Bb4 
9.e3 Qa5 10.Qc2 b5 11.Be2 Nbd7 12.O-O Qb6 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Cabrejos, Jose"]
[Black "Roldan, Rodrigo"]
[Result "1/2-1/2"]
[ECO "B33"]
[EventDate "2002.??.??"]
[PlyCount "114"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.a4 Be7 8.Be2 
a6 9.Na3 Be6 10.O-O d5 11.exd5 Nxd5 12.Nxd5 Qxd5 13.Be3 Rd8 14.Qxd5 Bxd5 
15.Bb6 Rd6 16.Rad1 Be6 17.Nc4 Rxd1 18.Rxd1 O-O 19.Nd6 Nd4 20.Bxd4 Bxd6 21.
Bc3 Bc7 22.Bf3 b5 23.axb5 axb5 24.Bc6 Rb8 25.Bb4 f6 26.Kf1 Kf7 27.Ra1 Bb6 
28.Ra6 Bc8 29.Ra8 Rxa8 30.Bxa8 Bf5 31.Bd5+ Kg6 32.Bc6 Bxc2 33.Bxb5 Bd4 34.
Bc3 Bxc3 35.bxc3 Kf5 36.Ke2 Ke4 37.Bc4 h6 38.f3+ Kf4 39.g3+ Kf5 40.Ke3 h5 
41.Bd5 Ba4 42.h4 Kg6 43.c4 Bb3 44.Kd3 f5 45.Kc3 Ba4 46.c5 Kf6 47.Kb4 Bd7 
48.c6 Bc8 49.Kc5 Ke7 50.Kb6 Kd6 51.Bf7 e4 52.fxe4 fxe4 53.Bxh5 e3 54.Be2 
g6 55.h5 gxh5 56.Bxh5 Ke5 57.Kc7 Ba6 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Cabrera, Andres"]
[Black "Anez, Jorge"]
[Result "0-1"]
[ECO "B35"]
[EventDate "2002.??.??"]
[PlyCount "102"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 g6 4.d4 cxd4 5.Nxd4 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.f3 
Qb6 9.Bb3 Nxe4 10.Nd5 Qa5+ 11.c3 Nf6 12.Nxc6 dxc6 13.Nxe7+ Kh8 14.Nxc8 
Raxc8 15.O-O Rcd8 16.Qc1 Nd5 17.Bh6 Rfe8 18.Bxg7+ Kxg7 19.Qg5 Qb6+ 20.Kh1 
Ne3 21.Rg1 Rd2 22.Rab1 Qc7 23.Qh4 Qd6 24.Qh3 Qd3 25.g4 Ng2 26.Qg3 g5 27.
Rbd1 Nf4 28.Rge1 Rxe1+ 29.Rxe1 Rxb2 30.Rd1 Qxc3 31.Rf1 Re2 32.h4 h6 33.
hxg5 hxg5 34.Qg1 Qd2 35.Rd1 Qb2 36.Qd4+ Qxd4 37.Rxd4 Kf6 38.Rd7 Re7 39.Rd8
Rc7 40.a4 b5 41.Kg1 Ne6 42.Rd6 Ke5 43.Rd2 Nd4 44.Bd1 a6 45.Kf2 c5 46.Ke3 
Nc6 47.Rb2 Nb4 48.axb5 axb5 49.Be2 Nd5+ 50.Kd2 b4 51.Bc4 Kd4 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Mafra, Kaiser Luiz"]
[Black "Pacheco, Marco"]
[Result "1-0"]
[ECO "D10"]
[EventDate "2002.??.??"]
[PlyCount "45"]

1.d4 Nf6 2.c4 c6 3.Nc3 d5 4.Bg5 dxc4 5.a4 e6 6.e3 Bb4 7.Bxf6 Qxf6 8.Bxc4 
O-O 9.Nf3 Nd7 10.Kf1 e5 11.Ne4 Qe7 12.Qc2 exd4 13.exd4 Nf6 14.Neg5 h6 15.
h4 hxg5 16.hxg5 Ne4 17.Ne5 Bf5 18.Bd3 Nd2+ 19.Kg1 Bxd3 20.Qxd3 Nf3+ 21.
Qxf3 Qxg5 22.Qh3 Qh6 23.Qd3 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Medrano, David"]
[Black "Chavez, Fernando"]
[Result "0-1"]
[ECO "A42"]
[EventDate "2002.??.??"]
[PlyCount "64"]

1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 Nc6 5.Nf3 Bg4 6.Be3 e5 7.d5 Nce7 8.Be2 Bxf3
9.Bxf3 f5 10.b4 Nf6 11.c5 a6 12.Rc1 O-O 13.cxd6 cxd6 14.Qd3 Rc8 15.O-O Qd7
16.Bd1 fxe4 17.Nxe4 Nxe4 18.Qxe4 Rxc1 19.Bxc1 Nf5 20.Bg4 Qa4 21.a3 a5 22.
Bd1 Qb5 23.Bd2 axb4 24.Bxb4 Qb6 25.Bg4 Nd4 26.Qe3 Kh8 27.Rc1 Qd8 28.Rc8 
Qf6 29.Rc7 Bh6 30.Qg3 b5 31.Rd7 Qg5 32.h3 Qc1+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Mieles Palau, Daniel"]
[Black "Castellanos, Renier"]
[Result "1/2-1/2"]
[ECO "B25"]
[EventDate "2002.??.??"]
[PlyCount "96"]

1.e4 c5 2.Nc3 d6 3.f4 g6 4.g3 Bg7 5.Bg2 Nc6 6.d3 e6 7.Nf3 Nge7 8.O-O O-O 
9.Be3 Nd4 10.Qd2 b6 11.Qf2 Nec6 12.Ne1 Bb7 13.Nd1 Ne7 14.g4 f5 15.gxf5 
exf5 16.c3 Ne6 17.Qd2 Qd7 18.Nf2 d5 19.exd5 Nxd5 20.Nh3 Nxe3 21.Qxe3 Rfe8 
22.Qd2 Re7 23.Bxb7 Qxb7 24.Ng2 Rae8 25.Rae1 Bf6 26.Ng5 h6 27.Nxe6 Rxe6 28.
Rxe6 Rxe6 29.Re1 Qd5 30.Rxe6 Qxe6 31.a3 Kf7 32.Qd1 Qa2 33.Qc2 g5 34.Kf2 
Qd5 35.Ne3 Qe6 36.Qa4 Kg6 37.Ng2 a6 38.Qxa6 Qb3 39.Qc8 Qc2+ 40.Kg1 Qc1+ 
41.Kf2 Qxb2+ 42.Kg3 Qe2 43.Qg8+ Bg7 44.Qd8 Bxc3 45.Qxb6+ Bf6 46.Qd6 g4 47.
Nh4+ Kh5 48.Qxf6 Qe3+ 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Nakamura, Hikaru"]
[Black "Andrade, Ulises"]
[Result "1-0"]
[ECO "C45"]
[EventDate "2002.??.??"]
[PlyCount "115"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Bc4 O-O 8.O-O
Bb6 9.f4 d5 10.Bxd5 Nxd4 11.Bxd4 Bxd4+ 12.Qxd4 Qxd4+ 13.cxd4 Nxd5 14.exd5 
Re8 15.Nc3 a6 16.Rfe1 Kf8 17.Kf2 Bd7 18.h3 h5 19.Re5 g6 20.Ne4 Red8 21.Rc1
Rac8 22.Nc5 f6 23.Re2 Bf5 24.Nxb7 Rxd5 25.Rd2 a5 26.Rc5 Be6 27.a4 Rxc5 28.
dxc5 Bb3 29.Rd4 Bc2 30.c6 Re8 31.Nc5 Bf5 32.b3 Ke7 33.Nb7 Ra8 34.Rd5 Ra6 
35.Nxa5 Be6 36.Rc5 Rb6 37.Rc3 Rb4 38.Ke3 Bd5 39.g3 g5 40.fxg5 fxg5 41.Kd2 
Be6 42.Rc5 Kf6 43.Kc3 Re4 44.Nc4 Bxh3 45.a5 Bc8 46.b4 Rg4 47.b5 Rxg3+ 48.
Kb4 h4 49.Nd2 Rg4+ 50.Rc4 Rg1 51.b6 cxb6 52.axb6 h3 53.b7 Bxb7 54.cxb7 h2 
55.b8=Q h1=Q 56.Qf8+ Kg6 57.Qe8+ Kf5 58.Qf7+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Ramirez, Alejandro"]
[Black "Parraga, Alejandro"]
[Result "1-0"]
[ECO "B04"]
[EventDate "2002.??.??"]
[PlyCount "95"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 Nb6 6.Bb3 Bg7 7.a4 a5 8.O-O O-O 
9.Qe2 Nc6 10.h3 d5 11.c3 f6 12.Na3 fxe5 13.dxe5 Bf5 14.Bg5 h6 15.Bh4 g5 
16.Bg3 e6 17.Nb5 Qe7 18.Rae1 Bg6 19.Bc2 Bxc2 20.Qxc2 Nc4 21.b3 Na3 22.Qg6 
Nxb5 23.axb5 Nd8 24.h4 Qf7 25.Qd3 Qf5 26.Qxf5 Rxf5 27.Nd4 Rf8 28.hxg5 hxg5
29.Ra1 Re8 30.Ra4 Nf7 31.Nf3 Kf8 32.Rfa1 Ke7 33.Re1 Rec8 34.Nxg5 Nxg5 35.
Bh4 Bh6 36.Rg4 Kd7 37.Bxg5 Rg8 38.f4 Bxg5 39.fxg5 Raf8 40.g6 Rg7 41.Re3 
Rfg8 42.Reg3 c5 43.Kh2 Ra8 44.Rh3 Ke7 45.Rh7 Kf8 46.Rf4+ Kg8 47.Rh6 Rf8 
48.Rfh4 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "7"]
[White "Uriarte, Carlos"]
[Black "Vasquez, Michael"]
[Result "0-1"]
[ECO "B57"]
[EventDate "2002.??.??"]
[PlyCount "82"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Bd7 7.Bb3 e6 8.Be3 
Be7 9.Qe2 Qc7 10.O-O-O a6 11.h3 O-O 12.g4 Nxd4 13.Bxd4 Bc6 14.g5 Nd7 15.
Rhg1 b5 16.Qh5 g6 17.Qh6 e5 18.Rg4 Rfc8 19.Bxe5 Nxe5 20.Rh4 Bxg5+ 21.Qxg5 
Nf3 22.Qh6 Nxh4 23.Qxh4 a5 24.Rd2 a4 25.Bd5 b4 26.Nd1 Bxd5 27.exd5 b3 28.
a3 Qc4 29.Qxc4 Rxc4 30.c3 Re8 31.Rd3 Re2 32.Rf3 Rce4 33.Ne3 f5 34.Ng2 Rc2+
35.Kb1 Ree2 36.c4 Rxb2+ 37.Ka1 Ra2+ 38.Kb1 Reb2+ 39.Kc1 Rc2+ 40.Kb1 Rxf2 
41.Rxf2 Rxf2 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Andrade, Ulises"]
[Black "Vasquez, Michael"]
[Result "1-0"]
[ECO "D89"]
[EventDate "2002.??.??"]
[PlyCount "49"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 
O-O 9.O-O Nc6 10.Be3 Bg4 11.f3 Na5 12.Bd3 cxd4 13.cxd4 Be6 14.Qa4 Rc8 15.
Rac1 b6 16.Ba6 Bd7 17.Qb4 Rxc1 18.Rxc1 e5 19.d5 f5 20.Qd6 fxe4 21.fxe4 Qe8
22.Rc7 Bg4 23.Ng3 Qa4 24.Qe7 Qd1+ 25.Nf1 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Cabrejos, Jose"]
[Black "Chavez, Fernando"]
[Result "1-0"]
[ECO "B06"]
[EventDate "2002.??.??"]
[PlyCount "97"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 c6 5.Nf3 Qb6 6.Bc4 Nh6 7.h3 e6 8.e5 dxe5 9.
fxe5 O-O 10.O-O Rd8 11.Bg5 Rd7 12.Na4 Qb4 13.Bb3 b6 14.a3 Qf8 15.Qe1 Nf5 
16.Rd1 h6 17.Bf4 Na6 18.Nc3 Nc7 19.Ne4 Ne8 20.g4 Ne7 21.Qh4 g5 22.Bxg5 Ng6
23.Qh5 hxg5 24.Nfxg5 Bh6 25.Nxe6 Be3+ 26.Kh2 Qh6 27.Qxh6 Bxh6 28.N6g5 Kg7 
29.Bxf7 Ba6 30.Ne6+ Kh8 31.Bxg6 Bxf1 32.Rxf1 Ng7 33.Nxg7 Bxg7 34.c3 c5 35.
e6 Re7 36.d5 Rd8 37.Rd1 Be5+ 38.Kg2 Kg7 39.Bf7 c4 40.h4 a5 41.g5 b5 42.g6 
b4 43.d6 Rxf7 44.gxf7 bxc3 45.e7 Rxd6 46.f8=Q+ Kh7 47.Ng5+ Kg6 48.Rxd6+ 
Bxd6 49.e8=Q# 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Cabrera, Andres"]
[Black "Parraga, Alejandro"]
[Result "1-0"]
[ECO "B03"]
[EventDate "2002.??.??"]
[PlyCount "75"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Bf5 7.Nc3 e6 8.Nf3 Bb4
9.a3 Bxc3+ 10.bxc3 c5 11.a4 Nc6 12.a5 Nd7 13.a6 bxa6 14.Bd3 Bxd3 15.Qxd3 
Ndxe5 16.Nxe5 Nxe5 17.Qg3 Ng6 18.Ba3 Qh4 19.Bxc5 Qe4+ 20.Kd2 Nf4 21.Rhe1 
Qxg2+ 22.Qxg2 Nxg2 23.Rg1 Nh4 24.Rxg7 Nf5 25.Rgg1 Kd7 26.Rxa6 Rhb8 27.Kc2 
Rb7 28.Re1 Rg8 29.Re2 h5 30.Kd3 h4 31.d5 Rc7 32.Bb4 exd5 33.cxd5 h3 34.Rf6
Rg5 35.Re5 Rg3+ 36.hxg3 h2 37.Re1 Nxg3 38.Bd6 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Castellanos, Renier"]
[Black "Bustamante, Richard"]
[Result "1-0"]
[ECO "B07"]
[EventDate "2002.??.??"]
[PlyCount "143"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.Qd2 b5 6.f3 Nbd7 7.O-O-O Qc7 8.Kb1 a5
9.g4 Nb6 10.e5 b4 11.Nb5 cxb5 12.exf6 Nc4 13.Bxc4 bxc4 14.fxe7 Bxe7 15.Ne2
Ba6 16.c3 d5 17.Bf4 Qb6 18.h4 Bb7 19.h5 Kd7 20.hxg6 hxg6 21.Be5 Rxh1 22.
Rxh1 a4 23.Rh7 f6 24.Bg3 bxc3 25.Qxc3 g5 26.Be1 Qd6 27.Ng3 Re8 28.Nf5 Qe6 
29.Ng7 Qg8 30.Qc2 Ra8 31.Qf5+ Kc6 32.Nh5 Bc8 33.Qc2 Qe6 34.Bg3 a3 35.Rh6 
axb2 36.Be5 fxe5 37.Rxe6+ Bxe6 38.Qg6 Kd7 39.Ng7 Bg8 40.Nf5 exd4 41.Nxd4 
Rc8 42.Kxb2 c3+ 43.Kc2 Bc5 44.Qg7+ Kd6 45.Nb5+ Kc6 46.Nxc3 d4 47.Ne4 Bxa2 
48.Qxg5 Bb6 49.Qe7 Rc7 50.Qe5 Kb7+ 51.Kd2 Ka6 52.Qd6 Bc4 53.g5 Kb7 54.Qa3 
Kc6 55.Qa8+ Kd7 56.f4 Ra7 57.Nf6+ Kc7 58.Qe8 Ra2+ 59.Kd1 d3 60.Qe7+ Kc6 
61.Ne4 Ra1+ 62.Kd2 Ba5+ 63.Ke3 Re1+ 64.Kf3 d2 65.Qd6+ Kb7 66.Nxd2 Bb5 67.
Nb3 Bb6 68.Nc5+ Ka7 69.Kg4 Rg1+ 70.Kf5 Re1 71.g6 Bc4 72.Qd7+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Mieles Palau, Daniel"]
[Black "Mafra, Kaiser Luiz"]
[Result "1-0"]
[ECO "B00"]
[EventDate "2002.??.??"]
[PlyCount "89"]

1.e4 a6 2.d4 b5 3.Bd3 Bb7 4.c3 g6 5.a4 Bg7 6.Nf3 bxa4 7.Rxa4 Nf6 8.Qe2 O-O
9.Nbd2 d6 10.O-O Nfd7 11.Nb3 Qc8 12.Be3 c5 13.dxc5 dxc5 14.Na5 Bc6 15.Ra3 
Qc7 16.b4 cxb4 17.cxb4 Qd6 18.Rb1 e6 19.Nc4 Qe7 20.Na5 Rd8 21.Nd4 Bxd4 22.
Bxd4 Qd6 23.Be3 Ne5 24.Bf4 Qd4 25.Be3 Qd7 26.Bb6 Rc8 27.Qe3 Nxd3 28.Rxd3 
Qe7 29.Bc5 Qe8 30.Nc4 Bb5 31.Nd6 Qd7 32.Nxb5 Qxb5 33.Rbd1 Nc6 34.Qg5 a5 
35.bxa5 Rab8 36.h4 Qxa5 37.Rd7 Qc3 38.Be3 Qe5 39.Qg4 Rb4 40.Qf3 f6 41.h5 
g5 42.h6 Nb8 43.Rd8+ Rxd8 44.Rxd8+ Kf7 45.Qh5+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Pacheco, Marco"]
[Black "Prasca, Raphael"]
[Result "1/2-1/2"]
[ECO "E09"]
[EventDate "2002.??.??"]
[PlyCount "108"]

1.d4 d5 2.Nf3 c6 3.c4 e6 4.Nbd2 Nf6 5.g3 Be7 6.Bg2 O-O 7.O-O Nbd7 8.Qc2 
Re8 9.e4 dxe4 10.Nxe4 Nxe4 11.Qxe4 Bf6 12.Rd1 Qe7 13.b3 Nc5 14.Qe2 Na6 15.
Bb2 Rb8 16.Ne5 c5 17.Rac1 Qc7 18.dxc5 Nxc5 19.b4 Na4 20.Ba1 Nb6 21.Be4 Ra8
22.Bb2 a5 23.b5 Na4 24.Bxh7+ Kxh7 25.Rd7 Qxd7 26.Nxd7 Bxb2 27.Rd1 Rd8 28.
Qc2+ Kg8 29.Nb6 Rxd1+ 30.Qxd1 Nxb6 31.Qd8+ Kh7 32.Qxb6 e5 33.Qc7 f6 34.c5 
Bd4 35.b6 a4 36.c6 bxc6 37.b7 Bxb7 38.Qxb7 Ra7 39.Qxc6 a3 40.Kg2 Ra5 41.f4
Rc5 42.Qe4+ Kg8 43.Qa8+ Kh7 44.Qxa3 Rc2+ 45.Kh3 Kh6 46.Kg4 Rxh2 47.f5 Rh5 
48.Qd3 g6 49.fxg6 f5+ 50.Qxf5 Rxf5 51.Kxf5 Kg7 52.a4 Bc3 53.g4 Ba5 54.g5 
Bc3 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Ramirez, Alejandro"]
[Black "Nakamura, Hikaru"]
[Result "0-1"]
[ECO "B92"]
[EventDate "2002.??.??"]
[PlyCount "90"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.f4 Qc7
9.O-O Be7 10.Kh1 Nbd7 11.f5 Bc4 12.a4 O-O 13.g4 h6 14.g5 hxg5 15.Bxg5 d5 
16.exd5 Bxd5+ 17.Bf3 Bxf3+ 18.Qxf3 Qc6 19.Qxc6 bxc6 20.Na5 Bb4 21.Nxc6 
Bxc3 22.bxc3 Rfe8 23.a5 Rac8 24.Nb4 Ne4 25.Be3 Rxc3 26.Bg1 Rc4 27.Rfb1 
Nec5 28.Nd3 Rxc2 29.Nxc5 Nxc5 30.Rb6 e4 31.Rc6 Nb3 32.Rxc2 Nxa1 33.Rc6 e3 
34.Bxe3 Rxe3 35.Rxa6 Ra3 36.Ra8+ Kh7 37.a6 Nc2 38.f6 gxf6 39.a7 Ne3 40.Kg1
Ng4 41.h3 Ne5 42.Kg2 Nc6 43.Rb8 Rxa7 44.Rb6 Rc7 45.Kg3 Kg6 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Roldan, Rodrigo"]
[Black "Borda, Alan"]
[Result "0-1"]
[ECO "C61"]
[EventDate "2002.??.??"]
[PlyCount "56"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Nxd4 exd4 5.d3 c6 6.Ba4 Qa5+ 7.c3 dxc3 8.
Nxc3 Bb4 9.Bd2 Nf6 10.O-O O-O 11.Bc2 d5 12.e5 Nd7 13.d4 Qd8 14.Re1 Qh4 15.
Re3 Nb6 16.a3 Be7 17.Rg3 Kh8 18.Ne2 Nc4 19.Bc1 g5 20.Qd3 Rg8 21.b3 Nb6 22.
Qf3 Rg7 23.Nc3 Be6 24.Nd1 Rag8 25.Ne3 Qxd4 26.Bb2 Qxb2 27.Rb1 Qc3 28.Qd1 
Qxe5 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "8"]
[White "Uriarte, Carlos"]
[Black "Medrano, David"]
[Result "1-0"]
[ECO "C00"]
[EventDate "2002.??.??"]
[PlyCount "103"]

1.e4 e6 2.Qe2 c5 3.g3 Nc6 4.c3 d5 5.Bg2 Nf6 6.d3 Be7 7.Nh3 d4 8.O-O e5 9.
Nd2 O-O 10.f4 Bg4 11.Nf3 Qd7 12.Nf2 Bxf3 13.Bxf3 Rad8 14.c4 a6 15.f5 b5 
16.b3 Qb7 17.g4 Nd7 18.g5 f6 19.h4 Kh8 20.Bg2 Rg8 21.g6 Nf8 22.h5 h6 23.
Ng4 Nd7 24.Nxh6 gxh6 25.Bxh6 Bf8 26.Qd2 Re8 27.Bxf8 Nxf8 28.Qh6+ Nh7 29.
gxh7 Qxh7 30.Qxf6+ Qg7 31.Qxg7+ Rxg7 32.a3 Reg8 33.Ra2 Rg5 34.f6 Rxh5 35.
f7 Rf8 36.Rf6 Nb8 37.Raf2 bxc4 38.bxc4 Kg7 39.Kf1 Rh6 40.Rxh6 Kxh6 41.Bh3 
Kg6 42.Be6 Nc6 43.Rb2 Nd8 44.Bd5 Nxf7 45.Rb6+ Nd6+ 46.Ke2 Rf6 47.Rxa6 Kg5 
48.Rc6 Ne8 49.Rxc5 Ra6 50.Bc6 Nc7 51.Bb7 Rxa3 52.Rxc7 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Andrade, Ulises"]
[Black "Mieles Palau, Daniel"]
[Result "0-1"]
[ECO "D35"]
[EventDate "2002.??.??"]
[PlyCount "50"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bf4 c6 5.e3 Nbd7 6.cxd5 exd5 7.Bd3 Be7 8.h3 
O-O 9.g4 Re8 10.Qc2 Nf8 11.Nge2 Be6 12.Kf1 a6 13.Ng3 N6d7 14.Nf5 Bxf5 15.
Bxf5 g6 16.Bd3 Ne6 17.Bg3 Bh4 18.Kg2 c5 19.Bxh4 Qxh4 20.Nxd5 cxd4 21.Qd2 
Qg5 22.Nb4 dxe3 23.fxe3 Nec5 24.Rae1 a5 25.Nc2 Qd5+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Anez, Jorge"]
[Black "Bustamante, Richard"]
[Result "0-1"]
[ECO "B07"]
[EventDate "2002.??.??"]
[PlyCount "22"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bg5 Bg7 5.e5 dxe5 6.dxe5 Ng4 7.Qxd8+ Kxd8 8.
Rd1+ Bd7 9.f4 h6 10.Be2 Ne3 11.Rd2 hxg5 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Borda, Alan"]
[Black "Cabrejos, Jose"]
[Result "0-1"]
[ECO "C48"]
[EventDate "2002.??.??"]
[PlyCount "82"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 d6 5.Bxc6+ bxc6 6.d4 exd4 7.Nxd4 Be7 8.
O-O Bd7 9.Re1 O-O 10.Bf4 Rb8 11.Nb3 Be6 12.Qd3 Nd7 13.Rad1 Nb6 14.Qg3 Bh4 
15.Qd3 Nc4 16.Bc1 Ne5 17.Qd4 Bg4 18.Ne2 f5 19.Bf4 fxe4 20.Bxe5 Bxf2+ 21.
Qxf2 Rxf2 22.Kxf2 Qf8+ 23.Kg3 Bxe2 24.Bxd6 cxd6 25.Rxe2 Qf5 26.Nd4 Qe5+ 
27.Kf2 Qxh2 28.c3 Rf8+ 29.Ke1 c5 30.Nb3 Qf4 31.Nd2 d5 32.Rc1 g5 33.Kd1 e3 
34.Nf3 g4 35.Ne1 d4 36.Rcc2 Rd8 37.Nd3 Qf1+ 38.Re1 Qxd3+ 39.Kc1 dxc3 40.
bxc3 Qd2+ 41.Rxd2 exd2+ 0-1

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Chavez, Fernando"]
[Black "Uriarte, Carlos"]
[Result "1-0"]
[ECO "C40"]
[EventDate "2002.??.??"]
[PlyCount "33"]

1.e4 e5 2.Nf3 f5 3.Nxe5 Nc6 4.Nxc6 dxc6 5.Bc4 Bd6 6.O-O Nf6 7.e5 Bxe5 8.
Qe2 Qd4 9.Re1 Kf8 10.Qxe5 Qxc4 11.Qe7+ Kg8 12.Qd8+ Kf7 13.Re7+ Kg6 14.Qxh8
Nh5 15.Qe8+ Kf6 16.d3 Qxc2 17.Qf7# 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Medrano, David"]
[Black "Roldan, Rodrigo"]
[Result "1-0"]
[ECO "A57"]
[EventDate "2002.??.??"]
[PlyCount "35"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nd2 b4 5.e4 d6 6.f4 Nbd7 7.Ngf3 Qc7 8.Bd3 g6 9.
O-O Bg7 10.Qe2 e5 11.dxe6 fxe6 12.Ng5 Nb8 13.e5 Ng8 14.Be4 Nc6 15.Qd3 Nh6 
16.exd6 Qd7 17.Nb3 Bd4+ 18.Nxd4 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Nakamura, Hikaru"]
[Black "Mafra, Kaiser Luiz"]
[Result "1-0"]
[ECO "B30"]
[EventDate "2002.??.??"]
[PlyCount "57"]

1.e4 c5 2.Nc3 Nc6 3.Nf3 Nf6 4.Bb5 Nd4 5.e5 Nxb5 6.Nxb5 Nd5 7.Ng5 f6 8.Ne4 
a6 9.Nbc3 e6 10.Qh5+ g6 11.Qf3 fxe5 12.Nxd5 exd5 13.Nf6+ Kf7 14.Nxd5+ Kg7 
15.h4 h5 16.d4 Be7 17.dxe5 Bxh4 18.Qe4 Bg5 19.Bf4 Bxf4 20.Nxf4 Qg5 21.
O-O-O Rf8 22.g3 a5 23.Qe3 Qf5 24.Rd6 Ra6 25.Rhd1 Re8 26.Nxg6 Rxd6 27.Rxd6 
Re6 28.Ne7 Rxe7 29.Qh6+ 1-0

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Pacheco, Marco"]
[Black "Castellanos, Renier"]
[Result "1/2-1/2"]
[ECO "A46"]
[EventDate "2002.??.??"]
[PlyCount "60"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nb3 Be6 8.c4 Nc6
9.cxd5 Bxd5 10.Bg5 Bxg2 11.Kxg2 Be7 12.Nc3 O-O 13.Qxd8 Rfxd8 14.Rfd1 Rxd1 
15.Rxd1 Rd8 16.Rxd8+ Bxd8 17.Bxf6 Bxf6 18.Nd5 Bd8 19.Nc5 b6 20.Nd3 f5 21.
f3 Kf7 22.e4 Ke6 23.N5b4 Nd4 24.exf5+ Kxf5 25.Nf2 Be7 26.Nbd3 Ke6 27.Ne4 
Nc6 28.Kf2 Nd4 29.g4 Bf6 30.Ke3 Nc2+ 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Prasca, Raphael"]
[Black "Ramirez, Alejandro"]
[Result "1/2-1/2"]
[ECO "B52"]
[EventDate "2002.??.??"]
[PlyCount "100"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4 Nxe4 8.d5
Ne5 9.Re1 Nxf3+ 10.Qxf3 Nf6 11.h3 e5 12.dxe6 fxe6 13.c4 Be7 14.Nc3 O-O 15.
Qe2 d5 16.cxd5 exd5 17.Bg5 Rae8 18.Qd3 d4 19.Qc4+ Kh8 20.Bxf6 Bxf6 21.Ne4 
b6 22.Rad1 Qc6 23.f3 Bh4 24.Rf1 Qe6 25.Qa6 Qd7 26.a3 Bd8 27.b4 cxb4 28.
axb4 Bc7 29.Rfe1 Re6 30.Qd3 Rg6 31.Kh1 Be5 32.Re2 Qf5 33.Qd2 Qd7 34.Qd3 
Qd8 35.Nd2 Bb8 36.Nc4 Qc7 37.Ne5 Re6 38.Rde1 Qd6 39.Re4 Rxe5 40.Rxe5 Qxe5 
41.Rxe5 Bxe5 42.g4 Rd8 43.Kg2 a5 44.bxa5 bxa5 45.Qb5 d3 46.Qxa5 Bf6 47.Qd2
h6 48.h4 Bc3 49.Qd1 d2 50.g5 Re8 1/2-1/2

[Event "27th Pan-American U20"]
[Site "La Paz BOL"]
[Date "2002.06.??"]
[Round "9"]
[White "Vasquez, Michael"]
[Black "Cabrera, Andres"]
[Result "1-0"]
[ECO "B68"]
[EventDate "2002.??.??"]
[PlyCount "67"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Be7 10.Be2 O-O 11.Bf3 Ne8 12.Bxe7 Qxe7 13.Rhe1 Rd8 14.g4 Nxd4 15.
Qxd4 Bc6 16.g5 b5 17.Nd5 Qb7 18.Nb4 a5 19.Nxc6 Qxc6 20.Bg4 b4 21.f5 Nc7 
22.f6 Rfe8 23.Qf2 Qa4 24.Kb1 Nb5 25.Rd3 Rb8 26.Rb3 Rec8 27.Rf1 Rc7 28.g6 
hxg6 29.Bxe6 Nc3+ 30.bxc3 fxe6 31.f7+ Kf8 32.Qh4 Rcc8 33.Qh8+ Ke7 34.f8=Q+
1-0

