[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.25"]
[Round "1"]
[White "Browne, Walter Shawn"]
[Black "Byrne, Robert"]
[Result "1-0"]
[WhiteElo "2545"]
[BlackElo "2580"]
[ECO "A80"]
[EventDate "1977.09.25"]
[PlyCount "49"]

1.d4 f5 2.Nc3 Nf6 3.Bg5 d5 4.Bxf6 exf6 5.e3 Be6 6.Bd3 g6 7.Qf3 c6 8.Nge2 
Nd7 9.h3 Qb6 10.g4 Qxb2 11.Rb1 Qa3 12.gxf5 Bf7 13.Rxb7 Bb4 14.O-O O-O-O 
15.Rxb4 Qxb4 16.Ba6+ Kc7 17.Rb1 Qd6 18.Rb7+ Kc8 19.Rb3+ Kc7 20.Rb7+ Kc8 
21.e4 Nb8 22.Nb5 cxb5 23.Qc3+ Nc6 24.e5 Qc7 25.e6 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.25"]
[Round "1"]
[White "Christiansen, Larry Mark"]
[Black "Matera, Salvatore Joseph"]
[Result "1-0"]
[WhiteElo "2460"]
[ECO "E67"]
[EventDate "1977.09.25"]
[PlyCount "69"]

1.c4 e5 2.Nc3 d6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.d4 Nbd7 7.O-O O-O 8.Qc2 Re8
9.Rd1 c6 10.e4 Qe7 11.d5 a5 12.h3 Nc5 13.Be3 Bd7 14.Nd2 cxd5 15.Bxc5 dxc5 
16.cxd5 a4 17.b3 a3 18.Bf1 Qd8 19.Kh2 Bh6 20.Nc4 Bf8 21.Ne3 Bh6 22.Qd3 
Bxe3 23.Qxe3 b6 24.Rac1 Qe7 25.Rc2 h5 26.Bc4 Qd6 27.Be2 Kg7 28.Nb1 Bc8 29.
Nd2 Nd7 30.Bb5 h4 31.g4 Qf6 32.Nc4 Rd8 33.g5 Qe7 34.Bxd7 Bxd7 35.Nxb6 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.25"]
[Round "1"]
[White "Lein, Anatoly"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2485"]
[ECO "B13"]
[EventDate "1977.09.25"]
[PlyCount "33"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 g6 6.Nf3 Bg7 7.O-O Nf6 8.Bf4 
O-O 9.Nbd2 Bf5 10.Qe2 Bxd3 11.Qxd3 Rc8 12.Rfe1 a6 13.Ne5 Nxe5 14.Bxe5 e6 
15.Re2 Nd7 16.Bxg7 Kxg7 17.Rae1 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.25"]
[Round "1"]
[White "Peters, John"]
[Black "Ghizdavu, Dimitru"]
[Result "1-0"]
[WhiteElo "2370"]
[BlackElo "2410"]
[ECO "B20"]
[EventDate "1977.09.25"]
[PlyCount "78"]

1.e4 c5 2.b3 Nf6 3.e5 Nd5 4.Bb2 Nc6 5.Nf3 e6 6.c4 Nde7 7.Bd3 Ng6 8.O-O Qc7
9.Re1 Be7 10.Nc3 a6 11.Nd5 exd5 12.cxd5 Nf4 13.Be4 O-O 14.dxc6 dxc6 15.Qc2
h6 16.d4 cxd4 17.Nxd4 Be6 18.g3 Nd5 19.f4 Qb6 20.f5 Nb4 21.Qd2 Bg5 22.Qf2 
Bd5 23.Bb1 c5 24.Ne2 Rad8 25.a3 Nc6 26.b4 a5 27.Nc3 axb4 28.Na4 Qb5 29.
Nxc5 Bc4 30.Ne4 bxa3 31.Bxa3 Qxe5 32.Ba2 Bxa2 33.Nxg5 Qd5 34.Bxf8 hxg5 35.
Bxg7 Kxg7 36.Rxa2 Nd4 37.Rf1 g4 38.Qf4 Qxa2 39.Qg5+ Kh7 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.25"]
[Round "1"]
[White "Reshevsky, Samuel Herman"]
[Black "Grefe, John"]
[Result "0-1"]
[WhiteElo "2490"]
[BlackElo "2425"]
[ECO "E12"]
[EventDate "1977.09.25"]
[PlyCount "60"]

1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 g5 7.Bg3 Nh5 8.e3 Nxg3 
9.hxg3 Bg7 10.Bd3 Nc6 11.g4 Qe7 12.a3 O-O-O 13.Qc2 h5 14.gxh5 g4 15.Nd2 f5
16.Ne2 Qg5 17.O-O-O Rxh5 18.d5 Ne5 19.Nf4 Nxd3+ 20.Qxd3 Qf6 21.Qc2 Rxh1 
22.Rxh1 Bh6 23.dxe6 dxe6 24.Rh2 Bxf4 25.exf4 g3 26.fxg3 Qd4 27.Rh1 Bxg2 
28.Re1 Qf2 29.Qd1 Bf3 30.Rf1 Rxd2 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.25"]
[Round "1"]
[White "Tarjan, James Edward"]
[Black "Soltis, Andrew E"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2450"]
[ECO "E91"]
[EventDate "1977.09.25"]
[PlyCount "75"]

1.d4 g6 2.e4 Bg7 3.c4 d6 4.Nc3 c6 5.Nf3 Nf6 6.Be2 O-O 7.O-O a6 8.e5 Ne8 9.
Bf4 b5 10.Re1 f6 11.exd6 exd6 12.h3 Kh8 13.Rc1 g5 14.Be3 h6 15.b4 a5 16.a3
axb4 17.axb4 bxc4 18.d5 cxd5 19.Nxd5 Nd7 20.Bxc4 Ne5 21.Nxe5 fxe5 22.b5 
Bb7 23.b6 Rc8 24.Bb3 Rxc1 25.Qxc1 Nf6 26.Qd2 Nh5 27.Rc1 Nf4 28.Rc7 Qa8 29.
Bxf4 exf4 30.Kh2 Re8 31.Rxg7 Kxg7 32.Nc7 Qd8 33.Nxe8+ Qxe8 34.Bd5 Bxd5 35.
Qxd5 Qb8 36.Qc6 Kf6 37.b7 f3 38.Qc8 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.25"]
[Round "1"]
[White "Zuckerman, Bernard"]
[Black "Fedorowicz, John"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2440"]
[ECO "B33"]
[EventDate "1977.09.25"]
[PlyCount "45"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 
b5 9.Bxf6 gxf6 10.Nd5 f5 11.Bd3 Be6 12.Qh5 Bg7 13.O-O f4 14.c3 O-O 15.Nc2 
f5 16.Ncb4 Nxb4 17.Nxb4 Qd7 18.exf5 Bxf5 19.Bxf5 Rxf5 20.Qf3 Raf8 21.Rad1 
Kh8 22.Nxa6 e4 23.Qg4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.26"]
[Round "2"]
[White "Browne, Walter Shawn"]
[Black "Grefe, John"]
[Result "1-0"]
[WhiteElo "2545"]
[BlackElo "2425"]
[ECO "E19"]
[EventDate "1977.09.25"]
[PlyCount "65"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 
Nxc3 9.Qxc3 c5 10.Rd1 d6 11.b3 Bf6 12.Bb2 Qe7 13.Qc2 Nc6 14.e4 g6 15.d5 
Nb4 16.Bxf6 Qxf6 17.Qd2 exd5 18.exd5 Bc8 19.a3 Na6 20.Ng5 Bf5 21.Qf4 Kg7 
22.g4 h6 23.h4 Bxg4 24.Qxg4 hxg5 25.hxg5 Qf5 26.Qg3 Rh8 27.Re1 Rae8 28.
Qc3+ Re5 29.Re4 Kh7 30.Rxe5 dxe5 31.Re1 Re8 32.Qg3 Kg8 33.f4 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.26"]
[Round "2"]
[White "Byrne, Robert"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2525"]
[ECO "B84"]
[EventDate "1977.09.25"]
[PlyCount "101"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Be7 7.O-O a6 8.f4 O-O
9.Qe1 b5 10.Bf3 d5 11.e5 Nfd7 12.Be3 Nb6 13.b3 Qc7 14.Nce2 N8d7 15.Qg3 Kh8
16.Qh3 Nc5 17.Bg4 Nbd7 18.Rf3 Re8 19.Ng3 Bf8 20.a3 Ne4 21.Nxe4 dxe4 22.Rg3
Nb6 23.b4 Nd5 24.Bd2 a5 25.bxa5 Bc5 26.c3 Qxa5 27.Rd1 Qb6 28.Kh1 Rxa3 29.
f5 Bxd4 30.cxd4 Rxg3 31.hxg3 exf5 32.Bxf5 Bxf5 33.Qxf5 Qxd4 34.Qxf7 Rg8 
35.Qh5 e3 36.Bxe3 Qxe3 37.Rxd5 b4 38.Rb5 Qxg3 39.Qf3 Qh4+ 40.Kg1 Qc4 41.
Qb7 Qc1+ 42.Kh2 Qf4+ 43.Kg1 Qd4+ 44.Kh2 Rd8 45.Qf3 Qh4+ 46.Qh3 Qc4 47.Rb7 
Qe4 48.Rb5 Qd4 49.Qg3 Rf8 50.e6 Rf4 51.Rh5 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.26"]
[Round "2"]
[White "Fedorowicz, John"]
[Black "Reshevsky, Samuel Herman"]
[Result "0-1"]
[WhiteElo "2440"]
[BlackElo "2490"]
[ECO "B42"]
[EventDate "1977.09.25"]
[PlyCount "82"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6 6.c4 Bg7 7.Nc2 d6 8.O-O Nd7 
9.Nc3 Ngf6 10.Be2 Qc7 11.Be3 Ne5 12.b3 b5 13.f4 Ned7 14.Qd2 bxc4 15.Bxc4 
Nc5 16.Bxc5 Qxc5+ 17.Kh1 Bb7 18.Rae1 O-O 19.f5 exf5 20.exf5 d5 21.Bd3 Rfe8
22.fxg6 hxg6 23.Na4 Qc7 24.Ne3 Re5 25.Rc1 Qe7 26.Nc2 Rh5 27.Rce1 Ne4 28.
Bxe4 dxe4 29.Ne3 Be5 30.h3 Rd8 31.Qf2 f5 32.Qc2 f4 33.Ng4 Rc8 34.Qb1 Qg5 
35.Nxe5 Qxe5 36.Re2 Qf5 37.Kg1 f3 38.Rb2 Rg5 39.h4 Rg3 40.Qe1 Qh3 41.Rff2 
e3 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.26"]
[Round "2"]
[White "Ghizdavu, Dimitru"]
[Black "Tarjan, James Edward"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2495"]
[ECO "B48"]
[EventDate "1977.09.25"]
[PlyCount "83"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.f4 Qc7 7.Be3 b5 8.Qf3 Bb7
9.Bd3 Nf6 10.O-O-O h5 11.Nb3 Rc8 12.Rhe1 Be7 13.Kb1 Nb4 14.h3 d5 15.Rc1 
Qd7 16.Bd4 Nxd3 17.cxd3 b4 18.e5 bxc3 19.exf6 gxf6 20.Rxc3 Rxc3 21.bxc3 
Bc6 22.Ka1 Qc7 23.Qg3 Kf8 24.Qh4 Bb5 25.Bxf6 Qxc3+ 26.Bxc3 Bxh4 27.Rd1 Rg8
28.Nd4 Rxg2 29.Nxb5 axb5 30.Rb1 Rg3 31.Rxb5 Rxd3 32.Bb4+ Kg7 33.a4 Rxh3 
34.a5 Bf6+ 35.Ka2 Bd4 36.a6 h4 37.Bc5 Rh2+ 38.Ka3 Bxc5+ 39.Rxc5 Rh1 40.Ka2
Rh2+ 41.Kb3 Rh1 42.Ka2 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.26"]
[Round "2"]
[White "Matera, Salvatore Joseph"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[BlackElo "2450"]
[ECO "A39"]
[EventDate "1977.09.25"]
[PlyCount "49"]

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 c5 6.Nc3 Nc6 7.d4 cxd4 8.Nxd4 
Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Be3 Ng4 12.Bd4 Ne5 13.Qd1 Rb8 14.a4 Be6 15.Nd5
Bxd5 16.Bxd5 a5 17.b3 Nc6 18.Bxg7 Kxg7 19.Qd2 Qb6 20.Rfd1 Nb4 21.Bf3 Qc5 
22.Qb2+ Kg8 23.Rd2 Rfc8 24.Rad1 Qf5 25.Qd4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.26"]
[Round "2"]
[White "Shamkovich, Leonid"]
[Black "Peters, John"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2370"]
[ECO "B67"]
[EventDate "1977.09.25"]
[PlyCount "55"]

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.f3 Be7 10.Be3 b5 11.g4 O-O 12.g5 Ne8 13.h4 Nc7 14.Rg1 b4 15.Nxc6 
Bxc6 16.Ne2 d5 17.Nd4 Bb7 18.e5 g6 19.h5 Re8 20.Rh1 Bf8 21.Qh2 Bg7 22.hxg6
hxg6 23.Nb3 a5 24.Qh7+ Kf8 25.Bc5+ Re7 26.f4 a4 27.Nd4 b3 28.a3 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.26"]
[Round "2"]
[White "Soltis, Andrew E"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2460"]
[ECO "B46"]
[EventDate "1977.09.25"]
[PlyCount "49"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 a6 6.Nxc6 bxc6 7.e5 Qc7 8.f4 
d5 9.exd6 Bxd6 10.Ne4 Bxf4 11.Bxf4 Qxf4 12.Qd4 e5 13.Nd6+ Kf8 14.Qxf4 exf4
15.Nxc8 Rxc8 16.O-O-O a5 17.Rd7 Nf6 18.Ra7 Ng4 19.Bc4 Ne5 20.Bb3 h5 21.Rf1
g5 22.h4 Rg8 23.hxg5 Rxg5 24.Rxf4 Rxg2 25.Rf1 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.27"]
[Round "3"]
[White "Browne, Walter Shawn"]
[Black "Matera, Salvatore Joseph"]
[Result "1/2-1/2"]
[WhiteElo "2545"]
[ECO "E82"]
[EventDate "1977.09.25"]
[PlyCount "46"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 b6 7.Bd3 Bb7 8.Qd2 c5 9.
d5 e6 10.Bg5 exd5 11.exd5 Re8+ 12.Nge2 Nbd7 13.Bc2 a6 14.a4 Qe7 15.Bd1 Ne5
16.b3 h6 17.Bxf6 Qxf6 18.O-O Qh4 19.Bc2 f5 20.h3 Re7 21.f4 Nd7 22.Rf2 Rae8
23.Raf1 Bc8 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.27"]
[Round "3"]
[White "Byrne, Robert"]
[Black "Soltis, Andrew E"]
[Result "1-0"]
[WhiteElo "2580"]
[BlackElo "2450"]
[ECO "B03"]
[EventDate "1977.09.25"]
[PlyCount "149"]

1.e4 Nf6 2.e5 Nd5 3.d4 c5 4.c4 Nb4 5.dxc5 a5 6.Nc3 N8c6 7.Nf3 g6 8.Bf4 Bg7
9.Be2 O-O 10.O-O b6 11.cxb6 Qxb6 12.Re1 Na6 13.Qd2 Re8 14.Nd5 Qb7 15.Bf1 
Nc5 16.b3 Ne6 17.Bh6 Bh8 18.Rac1 Qb8 19.Qe3 Ra7 20.Nf4 Ng7 21.Bd3 a4 22.
Ng5 axb3 23.axb3 e6 24.g4 Nxe5 25.Qxe5 Qxe5 26.Rxe5 f6 27.Re3 fxg5 28.Bxg5
d6 29.b4 Rf8 30.Be4 Raf7 31.Nd3 Ne8 32.Bh6 Bg7 33.Bxg7 Kxg7 34.h3 Nf6 35.
Bc6 e5 36.b5 Nd7 37.f3 Nb8 38.Bd5 Ra7 39.c5 dxc5 40.Nxc5 Ra5 41.Be6 Rxb5 
42.Bxc8 Rxc8 43.Ne6+ Kf6 44.Rxc8 Kxe6 45.Rd3 Rb7 46.Kf2 Nd7 47.Rc6+ Kf7 
48.Rdc3 Rb2+ 49.Rc2 Rb3 50.Rc7 Ke6 51.R2c6+ Kd5 52.Rc3 Rb2+ 53.Rc2 Rxc2+ 
54.Rxc2 Nc5 55.Rd2+ Ke6 56.Rd8 h5 57.gxh5 gxh5 58.h4 Nd7 59.Rg8 Nf6 60.Rg5
Kd6 61.Ke3 Ke6 62.f4 exf4+ 63.Kxf4 Nd5+ 64.Ke4 Nf6+ 65.Kd4 Kd6 66.Ra5 Ke6 
67.Ke3 Kf7 68.Kf4 Kg7 69.Kg5 Nh7+ 70.Kxh5 Nf6+ 71.Kg5 Nh7+ 72.Kf5 Kh6 73.
Ra6+ Kh5 74.Ra7 Kh6 75.Rf7 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.27"]
[Round "3"]
[White "Christiansen, Larry Mark"]
[Black "Grefe, John"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2425"]
[ECO "B22"]
[EventDate "1977.09.25"]
[PlyCount "45"]

1.e4 c5 2.c3 e6 3.Nf3 d5 4.exd5 exd5 5.d4 Nc6 6.Bb5 Bd6 7.Be3 Qb6 8.dxc5 
Bxc5 9.Bxc5 Qxc5 10.Na3 Ne7 11.O-O O-O 12.h3 Bf5 13.Bd3 d4 14.cxd4 Nxd4 
15.Rc1 Qd5 16.Nxd4 Qxd4 17.Bxf5 Nxf5 18.g4 Nh4 19.Qxd4 Nf3+ 20.Kg2 Nxd4 
21.Rfd1 Rfd8 22.Rc7 b5 23.Nc2 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.27"]
[Round "3"]
[White "Lein, Anatoly"]
[Black "Fedorowicz, John"]
[Result "1-0"]
[WhiteElo "2525"]
[BlackElo "2440"]
[ECO "A30"]
[EventDate "1977.09.25"]
[PlyCount "79"]

1.Nf3 c5 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.c4 Nf6 6.Nc3 a6 7.b3 d6 8.Bb2 Be7 9.
d4 cxd4 10.Qxd4 Nbd7 11.Rfe1 O-O 12.e4 Qb8 13.Qd2 Re8 14.Nd4 Bf8 15.h3 g6 
16.Rad1 Ra7 17.Qe3 Ba8 18.Rd2 Rc7 19.g4 Rcc8 20.Qg3 e5 21.Nc2 b5 22.cxb5 
axb5 23.Nb4 Nb6 24.a3 Bh6 25.Rdd1 Bf4 26.Qd3 d5 27.Ncxd5 Nbxd5 28.exd5 
Rcd8 29.Qc2 Rd6 30.Nc6 Qc7 31.Qc5 e4 32.Bxf6 Rxf6 33.Rxe4 Rxe4 34.Bxe4 Bd6
35.Qe3 Bxa3 36.b4 Bb2 37.Qd2 Be5 38.Nxe5 Qxe5 39.Bg2 Rd6 40.Re1 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.27"]
[Round "3"]
[White "Peters, John"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2490"]
[ECO "B43"]
[EventDate "1977.09.25"]
[PlyCount "24"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 g6 6.Nf3 Nc6 7.Bf4 Qb6 8.Rb1 
Nf6 9.Be2 d5 10.exd5 Nxd5 11.Nxd5 exd5 12.O-O Bg7 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.27"]
[Round "3"]
[White "Shamkovich, Leonid"]
[Black "Ghizdavu, Dimitru"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2410"]
[ECO "D73"]
[EventDate "1977.09.25"]
[PlyCount "115"]

1.c4 g6 2.d4 Nf6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d5 6.cxd5 Nxd5 7.e4 Nb6 8.Nc3 
Bg4 9.d5 e6 10.O-O exd5 11.exd5 c6 12.h3 Bxf3 13.Qxf3 cxd5 14.Nxd5 Nc6 15.
Nc3 Rc8 16.Rd1 Qe7 17.h4 Qb4 18.h5 Nd4 19.Qxb7 Nc2 20.a3 Qa5 21.Rb1 Qxh5 
22.Bf3 Qa5 23.Nd5 Rb8 24.Ne7+ Kh8 25.Nc6 Rxb7 26.Nxa5 Rd7 27.Rxd7 Nxd7 28.
Bd5 Ne5 29.Be4 Nd4 30.Be3 Ng4 31.Bd2 f5 32.Bb7 f4 33.gxf4 Ne2+ 34.Kg2 h5 
35.f3 Nh6 36.Be4 Kh7 37.Nc6 Nxf4+ 38.Bxf4 Rxf4 39.Nxa7 Nf7 40.b4 Ng5 41.
Re1 h4 42.Nc6 Rf6 43.b5 Bf8 44.a4 Rd6 45.Re2 Ne6 46.Rf2 Nf4+ 47.Kh2 Rd1 
48.Bc2 Rc1 49.Rd2 Bc5 50.Bd1 Rb1 51.Ne5 Kh6 52.Nf7+ Kg7 53.Ng5 Be3 54.Rd7+
Kf6 55.Nh7+ Ke6 56.Nf8+ Kf6 57.Nh7+ Ke6 58.Nf8+ 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.27"]
[Round "3"]
[White "Tarjan, James Edward"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2450"]
[ECO "E55"]
[EventDate "1977.09.25"]
[PlyCount "39"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.e3 O-O 6.Bd3 c5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 b6 10.Bd2 Bb7 11.Rfd1 cxd4 12.exd4 Rc8 13.Bd3 Bxc3 14.bxc3 Qc7 
15.Rac1 Rfe8 16.Re1 Qc6 17.Bb5 Qd5 18.c4 Qh5 19.Bf4 Red8 20.Bd6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.28"]
[Round "4"]
[White "Fedorowicz, John"]
[Black "Peters, John"]
[Result "1/2-1/2"]
[WhiteElo "2440"]
[BlackElo "2370"]
[ECO "B82"]
[EventDate "1977.09.25"]
[PlyCount "73"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 a6 7.f4 b5 8.Qf3 Bb7 
9.Bd3 Nbd7 10.g4 b4 11.Nd1 e5 12.Nf5 g6 13.Ng3 d5 14.O-O Be7 15.f5 O-O 16.
Nf2 Bc5 17.g5 Nxe4 18.Bxe4 dxe4 19.Nfxe4 Qb6 20.Bxc5 Nxc5 21.Qe3 Na4 22.
Qxb6 Nxb6 23.Nc5 Bc6 24.Rfe1 Nc4 25.Nd3 Rfe8 26.Nxb4 Bb7 27.Rad1 Nxb2 28.
Rd7 Rab8 29.Ne4 Bxe4 30.Rxe4 Na4 31.Nxa6 Rb1+ 32.Kf2 Nc3 33.Rc4 Nxa2 34.
Rcc7 e4 35.Rxf7 e3+ 36.Kg2 e2 37.Rg7+ 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.28"]
[Round "4"]
[White "Ghizdavu, Dimitru"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2580"]
[ECO "B91"]
[EventDate "1977.09.25"]
[PlyCount "34"]

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 Nbd7 10.a4 b6 11.h3 Bb7 12.g4 Nc5 13.Ng3 Re8 14.Re1 Bf8 15.Be3 
Rc8 16.Qd2 g6 17.Rac1 Qc7 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.28"]
[Round "4"]
[White "Grefe, John"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[BlackElo "2485"]
[ECO "D94"]
[EventDate "1977.09.25"]
[PlyCount "41"]

1.c4 Nf6 2.Nc3 c6 3.d4 d5 4.e3 g6 5.Nf3 Bg7 6.Bd3 O-O 7.O-O dxc4 8.Bxc4 
Bg4 9.h3 Bxf3 10.Qxf3 Nbd7 11.Qe2 e5 12.d5 cxd5 13.Nxd5 e4 14.Nxf6+ Bxf6 
15.Bd2 Qe7 16.a3 Nc5 17.Bb4 a5 18.Bxc5 Qxc5 19.Rac1 Qe5 20.a4 Rfd8 21.b3 
1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.28"]
[Round "4"]
[White "Matera, Salvatore Joseph"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]
[BlackElo "2525"]
[ECO "E55"]
[EventDate "1977.09.25"]
[PlyCount "81"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 a6 10.a4 cxd4 11.exd4 Nb6 12.Bd3 Bd7 13.Bg5 Bc6 14.Ne5 Rc8 15.
Nxc6 Rxc6 16.Ne4 Nbd5 17.Rfc1 Rxc1+ 18.Rxc1 Be7 19.h3 Nxe4 20.Qxe4 g6 21.
Bh6 Re8 22.Bc4 Bg5 23.Bxg5 Qxg5 24.Rc2 Nb4 25.Rc3 Qe7 26.Re3 Qd7 27.d5 e5 
28.d6 Qxd6 29.Rf3 Re7 30.Rxf7 Rxf7 31.Qxb7 Qf6 32.Bxf7+ Qxf7 33.Qxb4 Qc7 
34.Qc3 Qxc3 35.bxc3 Kf7 36.Kf1 Ke6 37.Ke2 Kd5 38.f3 Kc4 39.Kd2 Kb3 40.Kd3 
Kxa4 41.Kc4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.28"]
[Round "4"]
[White "Reshevsky, Samuel Herman"]
[Black "Tarjan, James Edward"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2495"]
[ECO "A78"]
[EventDate "1977.09.25"]
[PlyCount "69"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.e4 O-O 6.Nf3 d6 7.Be2 e6 8.O-O Re8 9.
Nd2 Na6 10.Re1 exd5 11.cxd5 Nc7 12.a4 b6 13.Qc2 Rb8 14.Nc4 Ba6 15.Bf4 Bxc4
16.Bxc4 Nh5 17.Be3 a6 18.Be2 b5 19.axb5 axb5 20.Bxh5 gxh5 21.Ne2 h4 22.Nf4
b4 23.Nh5 Bh8 24.Bh6 Bd4 25.Qd2 Kh8 26.Bg5 Re7 27.Qf4 f6 28.Bxf6+ Bxf6 29.
Qxf6+ Kg8 30.Qxh4 Rf7 31.Qg3+ Kh8 32.e5 Nxd5 33.e6 Re7 34.Rad1 Nc7 35.Rxd6
1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.28"]
[Round "4"]
[White "Soltis, Andrew E"]
[Black "Browne, Walter Shawn"]
[Result "0-1"]
[WhiteElo "2450"]
[BlackElo "2545"]
[ECO "B87"]
[EventDate "1977.09.25"]
[PlyCount "48"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5 8.O-O Be7
9.a4 b4 10.Na2 Nxe4 11.Nxb4 Qb6 12.c3 Nc5 13.a5 Qc7 14.Bc2 O-O 15.Re1 Bb7 
16.Bf4 g6 17.Qd2 Nbd7 18.Bg5 Nf6 19.Qf4 Nh5 20.Qh4 Bxg5 21.Qxg5 e5 22.Nb3 
Nf4 23.f3 Bxf3 24.Nd2 Qa7 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.28"]
[Round "4"]
[White "Zuckerman, Bernard"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2460"]
[ECO "B27"]
[EventDate "1977.09.25"]
[PlyCount "119"]

1.e4 c5 2.Nf3 Qc7 3.c3 Nf6 4.e5 Nd5 5.d4 cxd4 6.cxd4 e6 7.Bd3 Nc6 8.Nc3 
Nxc3 9.bxc3 d6 10.exd6 Bxd6 11.O-O O-O 12.Re1 f5 13.Bc4 Nd8 14.Qb3 b5 15.
Bxb5 Rb8 16.Qa4 Bb7 17.Ne5 Qxc3 18.Bf4 Be4 19.Ng6 Bxf4 20.Nxf4 Qd2 21.g3 
Qc3 22.Bf1 Rb2 23.Re3 Qc7 24.Qc4 Qd6 25.Nd3 Bxd3 26.Rxd3 f4 27.Qc3 fxg3 
28.fxg3 Rff2 29.Qc5 Qd7 30.d5 Rfc2 31.Rc3 Nb7 32.Rxc2 Nxc5 33.Rxb2 Qxd5 
34.Rab1 Qd4+ 35.Kh1 h5 36.Rb4 Qd5+ 37.Bg2 Qxa2 38.Rc1 Qd2 39.Rbc4 Nd3 40.
Rc8+ Kf7 41.Rf1+ Ke7 42.Rc7+ Kd6 43.Rxa7 Nf2+ 44.Kg1 Ng4 45.Raf7 Ne3 46.
R1f2 Qc1+ 47.Bf1 g5 48.Re2 Nf5 49.Rf2 Qe3 50.Bg2 g4 51.Rb7 Nd4 52.Rf7 e5 
53.Kh1 Nf3 54.R7xf3 gxf3 55.Rxf3 Qd2 56.Rf1 Qe2 57.Kg1 e4 58.Bxe4 Qxe4 59.
Rf4 Qe2 60.h4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.29"]
[Round "5"]
[White "Fedorowicz, John"]
[Black "Christiansen, Larry Mark"]
[Result "1-0"]
[WhiteElo "2440"]
[BlackElo "2460"]
[ECO "B35"]
[EventDate "1977.09.25"]
[PlyCount "171"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 
d6 9.h3 Na5 10.O-O b6 11.Qd3 Bb7 12.f4 Nxb3 13.axb3 Nd7 14.Bd2 Nc5 15.Qe3 
e5 16.fxe5 dxe5 17.Nf3 f5 18.Rfd1 fxe4 19.Ng5 Bh6 20.Qg3 Qe7 21.b4 Rf4 22.
Nxh7 Kxh7 23.bxc5 Bg5 24.Bxf4 exf4 25.Qg4 Bc8 26.Qe2 Qxc5+ 27.Kh1 f3 28.
Qxe4 fxg2+ 29.Qxg2 Qf5 30.Rd3 Rb8 31.Rxa7+ Kh6 32.Rd5 Qxh3+ 33.Qxh3+ Bxh3 
34.Ne4 Bf4 35.Nf6 Rh8 36.Kg1 Bf5 37.Kf2 Rf8 38.Kf3 Rxf6 39.Kxf4 Bxc2+ 40.
Kg3 Be4 41.Rd4 Bc6 42.Rg4 b5 43.Ra3 Rf5 44.Rc3 Bb7 45.Rh4+ Kg5 46.Rh7 Bd5 
47.Rhc7 b4 48.Re3 Be6 49.Rb7 Rf4 50.Rb5+ Bf5 51.Rb3 Rg4+ 52.Kf3 Rf4+ 53.
Kg2 Kg4 54.R5xb4 Be4+ 55.Kg1 g5 56.Re3 Kf5 57.Re2 Rh4 58.Kf2 Rh2+ 59.Ke1 
Rh1+ 60.Kd2 Bf3 61.Re1 Rh8 62.Ke3 Bc6 63.Rf1+ Ke5 64.Rg4 Rh3+ 65.Kd2 Rh2+ 
66.Ke1 Rh5 67.Rc4 Bg2 68.Rf2 Be4 69.Kd2 Kd5 70.Ra4 Rh8 71.Ra5+ Kd4 72.Rxg5
Rc8 73.Re2 Rc2+ 74.Kd1 Rc6 75.Rg4 Kd3 76.Rg3+ Kd4 77.Rd2+ Ke5 78.Rc3 Rh6 
79.Re2 Kd4 80.Kd2 Rb6 81.Kc1 Rh6 82.Rd2+ Ke5 83.b3 Rh1+ 84.Kb2 Rb1+ 85.Ka3
Bd5 86.Re3+ 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.29"]
[Round "5"]
[White "Ghizdavu, Dimitru"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2525"]
[ECO "B90"]
[EventDate "1977.09.25"]
[PlyCount "184"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nf3 Be7 8.Bc4 
O-O 9.Bg5 Nbd7 10.a4 Nc5 11.Nd2 Ne6 12.Bxf6 Bxf6 13.Bd5 Nf4 14.O-O Kh8 15.
Nc4 Be7 16.a5 f5 17.exf5 Rxf5 18.Be4 Rg5 19.Ne3 Be6 20.Ncd5 Rc8 21.h4 Nxd5
22.hxg5 Nxe3 23.fxe3 Bxg5 24.Ra3 d5 25.Bf5 Bxf5 26.Rxf5 d4 27.exd4 exd4 
28.Rh3 h6 29.Kh1 Qe7 30.Qd3 Rc6 31.Rhf3 Bf6 32.Rf1 Re6 33.Qc4 Re4 34.R5f3 
Re5 35.b4 Rh5+ 36.Kg1 Qe5 37.g3 Qe7 38.Qc8+ Kh7 39.Qc4 Re5 40.Qd3+ Kh8 41.
Qxd4 Re4 42.Qd2 Rxb4 43.Rxf6 gxf6 44.Qxh6+ Kg8 45.Qg6+ Qg7 46.Qe8+ Qf8 47.
Qg6+ Qg7 48.Qe8+ Qf8 49.Qxf8+ Kxf8 50.Rxf6+ Kg7 51.Rf3 Ra4 52.Rb3 Rxa5 53.
Rxb7+ Kf6 54.Rc7 Ra1+ 55.Kf2 a5 56.Ke2 Ke6 57.g4 Kd6 58.Rc8 a4 59.Kd2 Rg1 
60.Rc4 a3 61.Ra4 a2 62.Rxa2 Rxg4 63.Ra8 Rg3 64.Rc8 Rh3 65.Kc1 Rg3 66.Kb2 
Rh3 67.Rc4 Rg3 68.Rc8 Rh3 69.c3 Rh4 70.Kb3 Rg4 71.Rh8 Kc5 72.Rh5+ Kc6 73.
Rf5 Rh4 74.c4 Rh1 75.Rf6+ Kc5 76.Rf5+ Kc6 77.Kb4 Rb1+ 78.Kc3 Rc1+ 79.Kb3 
Rh1 80.Rg5 Rb1+ 81.Kc3 Rh1 82.Re5 Rc1+ 83.Kb3 Rh1 84.Re6+ Kc5 85.Re5+ Kc6 
86.Kb4 Rb1+ 87.Kc3 Rc1+ 88.Kd4 Rd1+ 89.Kc3 Rc1+ 90.Kd4 Rd1+ 91.Kc3 Rh1 92.
Kd4 Rd1+ 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.29"]
[Round "5"]
[White "Grefe, John"]
[Black "Byrne, Robert"]
[Result "0-1"]
[WhiteElo "2425"]
[BlackElo "2580"]
[ECO "A92"]
[EventDate "1977.09.25"]
[PlyCount "82"]

1.d4 f5 2.Nf3 Nf6 3.c4 e6 4.g3 d5 5.Bg2 Be7 6.O-O O-O 7.Nbd2 b6 8.b3 Bb7 
9.Bb2 c5 10.e3 Nc6 11.Qe2 Rc8 12.Rac1 Ne4 13.Rfd1 Qe8 14.dxc5 bxc5 15.Ne5 
Nxe5 16.Bxe5 Bf6 17.Nf3 Qe7 18.Qb2 Rfd8 19.cxd5 Rxd5 20.Bxf6 Qxf6 21.Qxf6 
gxf6 22.Rxd5 Bxd5 23.Nd4 Kf7 24.Nb5 Ke7 25.Rc2 a5 26.Na3 a4 27.bxa4 Ra8 
28.Nc4 Rxa4 29.Nb6 Ra5 30.Nxd5+ exd5 31.f3 Nd6 32.Kf2 c4 33.Bf1 Ra3 34.Ke2
f4 35.e4 d4 36.Ke1 Re3+ 37.Kd1 d3 38.Rf2 c3 39.Bxd3 Rxd3+ 40.Kc2 fxg3 41.
hxg3 Re3 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.29"]
[Round "5"]
[White "Matera, Salvatore Joseph"]
[Black "Tarjan, James Edward"]
[Result "1/2-1/2"]
[BlackElo "2495"]
[ECO "E59"]
[EventDate "1977.09.25"]
[PlyCount "71"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nc3 c5 5.e3 O-O 6.Bd3 d5 7.O-O Nc6 8.a3 Bxc3
9.bxc3 dxc4 10.Bxc4 Qc7 11.Bd3 e5 12.Qc2 Re8 13.dxe5 Nxe5 14.Nxe5 Qxe5 15.
f3 Bd7 16.Rd1 Rad8 17.e4 Bc6 18.Be3 Nd5 19.Bf2 Nb6 20.a4 c4 21.Be2 Rxd1+ 
22.Bxd1 Rd8 23.Be2 Qa5 24.Kh1 Nxa4 25.Bxc4 Qxc3 26.Qxc3 Nxc3 27.Bxa7 Kf8 
28.Kg1 Ke8 29.Bb6 Rc8 30.Bb3 Bb5 31.Kf2 Bc4 32.Bxc4 Rxc4 33.Ke3 g6 34.Ra8+
Kd7 35.Rf8 Ke6 36.Rb8 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.29"]
[Round "5"]
[White "Reshevsky, Samuel Herman"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2450"]
[ECO "E69"]
[EventDate "1977.09.25"]
[PlyCount "35"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nbd7 7.O-O e5 8.e4 c6 
9.h3 Qb6 10.Re1 Re8 11.d5 Nc5 12.Rb1 a5 13.b3 Qc7 14.dxc6 bxc6 15.Ba3 Bf8 
16.Qd2 Ne6 17.Rbd1 c5 18.Nb5 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.29"]
[Round "5"]
[White "Shamkovich, Leonid"]
[Black "Browne, Walter Shawn"]
[Result "0-1"]
[WhiteElo "2485"]
[BlackElo "2545"]
[ECO "B23"]
[EventDate "1977.09.25"]
[PlyCount "145"]

1.e4 c5 2.Nc3 d6 3.Nge2 Nf6 4.g3 Nc6 5.Bg2 g6 6.O-O Bg7 7.d3 O-O 8.f4 Bd7 
9.h3 Rb8 10.a3 Nd4 11.Nxd4 cxd4 12.Ne2 Qb6 13.Kh2 Bc6 14.f5 Rbe8 15.a4 a5 
16.c3 dxc3 17.bxc3 Nd7 18.d4 Nf6 19.d5 Bd7 20.Qd3 Qa6 21.Qxa6 bxa6 22.Nd4 
Rc8 23.Bd2 Rc4 24.Rfb1 Re8 25.Be1 Rxa4 26.Rxa4 Bxa4 27.Ra1 Bb5 28.Nxb5 
axb5 29.Rxa5 Rb8 30.Ra7 Kf8 31.Bf2 Ne8 32.Ra3 Rc8 33.Be1 Rc4 34.fxg6 hxg6 
35.Rb3 Nc7 36.Kg1 Na6 37.Kf1 Nc5 38.Rb4 Na4 39.Rxb5 Bxc3 40.Rb8+ Kg7 41.
Bf2 Bd4 42.Be1 Rc1 43.Ke2 Rc2+ 44.Kd3 Rxg2 45.Kxd4 Nc5 46.Ke3 Nxe4 47.Rb7 
Kf6 48.Rb4 Nc5 49.Bc3+ e5 50.dxe6+ Kxe6 51.Be1 Ra2 52.Rc4 Ra3+ 53.Rc3 Ra1 
54.Ke2 Ne4 55.Rb3 d5 56.g4 f6 57.h4 Ke5 58.Rf3 Ra2+ 59.Kf1 d4 60.Rh3 Kf4 
61.Rd3 Ra4 62.h5 g5 63.h6 Kxg4 64.h7 Ra8 65.Rxd4 Kf5 66.Ke2 Re8 67.Kd3 
Nc5+ 68.Kc4 Ne6 69.Rd7 Kg6 70.Bc3 Ng7 71.Kd5 Rh8 72.Rd6 Nh5 73.Ke4 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.29"]
[Round "5"]
[White "Soltis, Andrew E"]
[Black "Peters, John"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2370"]
[ECO "B23"]
[EventDate "1977.09.25"]
[PlyCount "77"]

1.e4 c5 2.Nc3 Nc6 3.Nge2 Nd4 4.a4 a6 5.d3 g6 6.Be3 Bg7 7.a5 d6 8.Qd2 b5 9.
axb6 Qxb6 10.Na4 Qb7 11.Nc1 Bd7 12.c3 Nc6 13.Ra3 Qc7 14.Be2 Nf6 15.O-O O-O
16.f4 Nd8 17.b4 cxb4 18.cxb4 Rb8 19.Na2 Nc6 20.Rb1 Na7 21.N4c3 Qb7 22.Bf3 
Bc6 23.Qf2 Nc8 24.Rab3 Qd7 25.h3 Rd8 26.d4 d5 27.e5 Ne4 28.Nxe4 dxe4 29.
Be2 Ra8 30.Nc3 Nb6 31.Ra3 Bb7 32.Rba1 Rdc8 33.Qf1 f6 34.b5 axb5 35.Bxb5 
Qc7 36.Rxa8 Bxa8 37.Na4 Nxa4 38.Rxa4 Bd5 39.Qa1 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.30"]
[Round "6"]
[White "Christiansen, Larry Mark"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2580"]
[ECO "D01"]
[EventDate "1977.09.25"]
[PlyCount "45"]

1.d4 Nf6 2.Nc3 d5 3.Bg5 h6 4.Bxf6 gxf6 5.e4 c6 6.Qf3 e6 7.Bd3 Nd7 8.Nge2 
dxe4 9.Nxe4 f5 10.N4c3 Qg5 11.h4 Qg4 12.Qe3 Be7 13.O-O-O Nb6 14.Nf4 Bd6 
15.g3 Bd7 16.Be2 Qg7 17.Nh5 Qg6 18.d5 O-O-O 19.dxc6 Bxc6 20.Bf3 Bxf3 21.
Qxf3 a6 22.Rhe1 Bc7 23.Nf4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.30"]
[Round "6"]
[White "Fedorowicz, John"]
[Black "Soltis, Andrew E"]
[Result "1-0"]
[WhiteElo "2440"]
[BlackElo "2450"]
[ECO "B15"]
[EventDate "1977.09.25"]
[PlyCount "97"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d5 5.h3 Nf6 6.e5 Ne4 7.Bd3 Nxc3 8.bxc3 c5 
9.Bf4 Qa5 10.Qd2 Nd7 11.O-O c4 12.Be2 Nb6 13.Rfb1 Na4 14.Rb4 b5 15.Rab1 a6
16.Nh2 Qd8 17.Nf1 O-O 18.Ne3 Be6 19.Bh2 Qd7 20.Re1 f5 21.f4 Kh8 22.Kh1 
Rab8 23.Rbb1 a5 24.a3 Bf7 25.Rg1 e6 26.g4 Rg8 27.gxf5 gxf5 28.Nf1 Qe7 29.
Ra1 Qh4 30.Qe3 Bh6 31.Nd2 Rxg1+ 32.Rxg1 Rg8 33.Nf3 Rxg1+ 34.Qxg1 Qe7 35.
Qe1 Bh5 36.Bg3 Bxf3+ 37.Bxf3 Qf7 38.Bh4 Bg7 39.Bd8 Qa7 40.Bh5 Qa8 41.Qh4 
Qa7 42.Bg6 h6 43.Bf6 Nxc3 44.Qxh6+ Kg8 45.Qh7+ Kf8 46.Bh5 Ne4 47.Qg6 Kg8 
48.Qe8+ Kh7 49.Bf7 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.30"]
[Round "6"]
[White "Grefe, John"]
[Black "Matera, Salvatore Joseph"]
[Result "1/2-1/2"]
[WhiteElo "2425"]
[ECO "D38"]
[EventDate "1977.09.25"]
[PlyCount "103"]

1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 O-O 8.Rc1 
Nc6 9.cxd5 exd5 10.a3 Bxc3+ 11.Rxc3 Qd6 12.Be2 Ne7 13.b4 a6 14.O-O Bg4 15.
h3 Bxf3 16.Bxf3 c6 17.Qb3 Rfb8 18.a4 Kh8 19.Rfc1 Kg8 20.Rc5 Ra7 21.g3 Rd8 
22.Kg2 Re8 23.R5c3 Rd8 24.Qb1 Nc8 25.b5 axb5 26.axb5 Ne7 27.Qd3 Rda8 28.
Bd1 Ra3 29.Bb3 Qb4 30.bxc6 bxc6 31.Rb1 Kf8 32.Qc2 g6 33.Rd3 Ra1 34.Rdd1 
Rxb1 35.Rxb1 Qa3 36.h4 Rb8 37.h5 gxh5 38.Ba2 Rxb1 39.Bxb1 Qd6 40.Qe2 h4 
41.gxh4 Qf6 42.Qg4 Ng6 43.h5 Ne7 44.Kg3 Qd6+ 45.Qf4 Nc8 46.Bf5 Qxf4+ 47.
Kxf4 Nb6 48.e4 Ke7 49.e5 Na4 50.Bc8 c5 51.dxc5 Nxc5 52.Ke3 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.30"]
[Round "6"]
[White "Peters, John"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2525"]
[ECO "C87"]
[EventDate "1977.09.25"]
[PlyCount "40"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O Bd7 6.d4 Nf6 7.c3 Be7 8.Re1 O-O 
9.Nbd2 Re8 10.h3 Bf8 11.a3 g6 12.b4 Bg7 13.Bb2 Nh5 14.d5 Nb8 15.Bc2 Nf4 
16.c4 Bc8 17.Nb3 Nd7 18.Bc1 Nf6 19.Be3 N6h5 20.Kh2 Rf8 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.30"]
[Round "6"]
[White "Reshevsky, Samuel Herman"]
[Black "Ghizdavu, Dimitru"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2410"]
[ECO "A57"]
[EventDate "1977.09.25"]
[PlyCount "32"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.e3 g6 6.Nc3 Bg7 7.Nf3 d6 8.a4 O-O 9.
Qb3 Nbd7 10.Ra3 Rb8 11.Be2 axb5 12.Bxb5 Ba6 13.O-O Bxb5 14.axb5 Ne8 15.Qc4
Nc7 16.e4 Rb7 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.30"]
[Round "6"]
[White "Tarjan, James Edward"]
[Black "Browne, Walter Shawn"]
[Result "1-0"]
[WhiteElo "2495"]
[BlackElo "2545"]
[ECO "E54"]
[EventDate "1977.09.25"]
[PlyCount "99"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.e3 O-O 6.Bd3 d5 7.O-O cxd4 8.exd4 
dxc4 9.Bxc4 b6 10.Re1 Bb7 11.Bd3 Nc6 12.Bc2 Be7 13.a3 Rc8 14.Qd3 g6 15.Bh6
Re8 16.Rad1 Bf8 17.Bg5 Be7 18.Ba4 a6 19.Bxf6 Bxf6 20.d5 exd5 21.Rxe8+ Qxe8
22.Nxd5 Bd8 23.h4 Qf8 24.Ng5 b5 25.Bb3 Na5 26.Ba2 Nc4 27.Ne3 h6 28.Ne6 
fxe6 29.Qxg6+ Qg7 30.Qxe6+ Kf8 31.Bxc4 bxc4 32.Rd7 Qf6 33.Qxf6+ Bxf6 34.
Rxb7 Bxh4 35.Rb6 Bg5 36.Rxa6 Bxe3 37.fxe3 Kg7 38.a4 Rb8 39.Rc6 Rxb2 40.
Rxc4 Ra2 41.Kh2 Ra3 42.Re4 Kg6 43.Kg3 Ra1 44.Rb4 Kf5 45.Kf2 Kg5 46.Kf3 
Rf1+ 47.Kg3 h5 48.Rb5+ Kh6 49.Rb8 Rf5 50.Rb6+ 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.09.30"]
[Round "6"]
[White "Zuckerman, Bernard"]
[Black "Shamkovich, Leonid"]
[Result "1-0"]
[WhiteElo "2450"]
[BlackElo "2485"]
[ECO "B06"]
[EventDate "1977.09.25"]
[PlyCount "77"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 c6 5.Nf3 Qb6 6.Be2 Bg4 7.e5 Nh6 8.Ne4 Nf5 
9.c3 Nd7 10.Nfg5 Bxe2 11.Qxe2 d5 12.Ng3 Nxg3 13.hxg3 Nf8 14.g4 h6 15.Nf3 
e6 16.Be3 O-O-O 17.O-O-O Re8 18.f5 exf5 19.gxf5 f6 20.Qd3 Qa6 21.Qxa6 bxa6
22.g4 Nd7 23.e6 Nb6 24.Nh4 g5 25.Ng2 Nc4 26.Rh5 Nxe3 27.Nxe3 Kc7 28.Rdh1 
Kd6 29.R5h3 Rc8 30.Nf1 c5 31.dxc5+ Rxc5 32.Ng3 Rc4 33.Nh5 Rh7 34.Nxg7 Rxg7
35.Rxh6 Rxg4 36.Rxf6 Rf4 37.Rh8 g4 38.Rf7 Rg5 39.e7 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.01"]
[Round "7"]
[White "Browne, Walter Shawn"]
[Black "Peters, John"]
[Result "1/2-1/2"]
[WhiteElo "2545"]
[BlackElo "2370"]
[ECO "E12"]
[EventDate "1977.09.25"]
[PlyCount "43"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 exd5 7.Bg5 Be7 8.e3 O-O
9.Rc1 Nbd7 10.Bb5 c5 11.O-O Rc8 12.dxc5 bxc5 13.Qe2 h6 14.Bh4 Ne4 15.Bxe7 
Qxe7 16.Ba6 Ndf6 17.Nxe4 Nxe4 18.Rc2 Rfd8 19.Bxb7 Qxb7 20.Nd2 Nf6 21.Rfc1 
Nd7 22.Nf3 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.01"]
[Round "7"]
[White "Byrne, Robert"]
[Black "Tarjan, James Edward"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2495"]
[ECO "C65"]
[EventDate "1977.09.25"]
[PlyCount "41"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.Qe2 d6 5.d4 exd4 6.Nxd4 Bd7 7.Bxc6 bxc6 8.
Nc3 Be7 9.Bf4 O-O 10.O-O-O Re8 11.Qa6 Qc8 12.Qxc8 Raxc8 13.f3 d5 14.Nb3 
Be6 15.Rhe1 Bb4 16.Bd2 h6 17.Na4 Bf8 18.Nac5 dxe4 19.Nxe4 Nxe4 20.Rxe4 Bd6
21.Rde1 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.01"]
[Round "7"]
[White "Ghizdavu, Dimitru"]
[Black "Zuckerman, Bernard"]
[Result "0-1"]
[WhiteElo "2410"]
[BlackElo "2450"]
[ECO "A00"]
[EventDate "1977.09.25"]
[PlyCount "0"]

0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.01"]
[Round "7"]
[White "Lein, Anatoly"]
[Black "Grefe, John"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2425"]
[ECO "E19"]
[EventDate "1977.09.25"]
[PlyCount "127"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 
Nxc3 9.Qxc3 Be4 10.Rd1 Bf6 11.Qe3 d5 12.Bd2 Nc6 13.Bc3 Ne7 14.cxd5 Qxd5 
15.Ne1 Bxg2 16.Nxg2 Rfd8 17.Nf4 Qf5 18.Qf3 Bg5 19.e4 Qf6 20.Kg2 Bxf4 21.
Qxf4 Qxf4 22.gxf4 a5 23.a4 f5 24.f3 Rd7 25.Kg3 Rad8 26.Rd2 Kf7 27.Kf2 Ng8 
28.Ke3 Nf6 29.Rg1 g6 30.h3 Ng8 31.Rd3 Ne7 32.Rgd1 Rd6 33.Be1 R8d7 34.h4 
Rc6 35.Rc3 Rcd6 36.Rcd3 Ke8 37.Bc3 Rc6 38.Rh1 Kd8 39.h5 Kc8 40.hxg6 hxg6 
41.Rh8+ Kb7 42.Rf8 Rcd6 43.Rd2 Rc6 44.Rf6 Rcd6 45.Rh2 Nc6 46.Rxg6 Nxd4 47.
Rhh6 Nb3 48.Rxe6 Rd3+ 49.Kf2 Nd4 50.Bxd4 R7xd4 51.exf5 Rxf4 52.Re3 Rd2+ 
53.Kg3 Rxf5 54.b3 Rf7 55.Rh4 Kc6 56.Rc4+ Kd5 57.f4 c5 58.Re5+ Kd6 59.Rce4 
Rf6 60.f5 Rd3+ 61.Kf4 Rxb3 62.Re6+ Rxe6 63.Rxe6+ Kd7 64.Ke5 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.01"]
[Round "7"]
[White "Matera, Salvatore Joseph"]
[Black "Fedorowicz, John"]
[Result "1/2-1/2"]
[BlackElo "2440"]
[ECO "A74"]
[EventDate "1977.09.25"]
[PlyCount "78"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.e4 a6 8.a4 Bg7 9.
Be2 O-O 10.O-O b6 11.Nd2 Ra7 12.f4 Re7 13.Bf3 Ne8 14.Nc4 Rb7 15.Be3 b5 16.
axb5 axb5 17.Na5 Rb6 18.e5 Na6 19.Nc6 Qc7 20.Ne4 dxe5 21.fxe5 Bxe5 22.Nxe5
Qxe5 23.Rxa6 Rxa6 24.Bxc5 Bf5 25.Bd4 Qb8 26.Nc5 Ra7 27.g4 Bc8 28.Qe1 Qf4 
29.Ne6 Bxe6 30.Bxa7 Bxg4 31.Bg2 Qc7 32.Bd4 Ng7 33.Qh4 f5 34.Qh6 Nh5 35.Re1
Qf4 36.Be3 Qb4 37.Bd2 Qc5+ 38.Be3 Qb4 39.Bd2 Qc5+ 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.01"]
[Round "7"]
[White "Shamkovich, Leonid"]
[Black "Christiansen, Larry Mark"]
[Result "1-0"]
[WhiteElo "2485"]
[BlackElo "2460"]
[ECO "B50"]
[EventDate "1977.09.25"]
[PlyCount "62"]

1.e4 c5 2.Nf3 d6 3.Nc3 e5 4.Bc4 Nc6 5.d3 h6 6.O-O g6 7.Ne1 Nf6 8.f4 Bg7 9.
Nf3 O-O 10.fxe5 dxe5 11.Be3 b6 12.Nd5 Ne8 13.a3 Nd6 14.Ba2 Be6 15.b4 cxb4 
16.axb4 f5 17.Nxb6 Bxa2 18.Nxa8 Bf7 19.Bc5 Re8 20.Ra6 Qc8 21.Qa1 Nxe4 22.
dxe4 Bc4 23.Re1 fxe4 24.Rxe4 Bd5 25.Qe1 Nxb4 26.Qxb4 Bxe4 27.Qxe4 Qxa6 28.
Nc7 Qa1+ 29.Kf2 Rc8 30.Ne6 Kh7 31.Nh4 Rg8 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.01"]
[Round "7"]
[White "Soltis, Andrew E"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2490"]
[ECO "C91"]
[EventDate "1977.09.25"]
[PlyCount "70"]

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.d4 Bg4 10.d5 Na5 11.Bc2 c6 12.h3 Bc8 13.dxc6 Qc7 14.Nbd2 Qxc6 15.Re3 g6 
16.b4 Nc4 17.Nxc4 bxc4 18.Re1 Qc7 19.Nh2 d5 20.exd5 Rd8 21.Ng4 Bxg4 22.
hxg4 Nxd5 23.Qf3 Nf4 24.Be4 Qb6 25.Bxf4 exf4 26.Rad1 Rxd1 27.Rxd1 Rd8 28.
Rxd8+ Bxd8 29.Bb7 Qd6 30.Bd5 Qc7 31.Qe4 Bf6 32.Bxc4 Bxc3 33.a3 a5 34.b5 
Kg7 35.Qd5 f6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.02"]
[Round "8"]
[White "Christiansen, Larry Mark"]
[Black "Lein, Anatoly"]
[Result "0-1"]
[WhiteElo "2460"]
[BlackElo "2525"]
[ECO "D53"]
[EventDate "1977.09.25"]
[PlyCount "102"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 Be7 5.Bg5 Ne4 6.Bxe7 Qxe7 7.e3 Nxc3 8.bxc3
c6 9.Qb3 O-O 10.cxd5 exd5 11.c4 Be6 12.c5 Rc8 13.Be2 Rc7 14.a4 Nd7 15.a5 
a6 16.O-O Bg4 17.Rfe1 Kh8 18.Ra4 Re8 19.Rb4 Nf8 20.Rb1 Bc8 21.Nd2 f5 22.
Bf1 g5 23.Re1 Qf6 24.Qd1 Rce7 25.Bd3 g4 26.Rb2 Qxd4 27.exd4 Rxe1+ 28.Qxe1 
Rxe1+ 29.Nf1 Kg7 30.Rb1 Rxb1 31.Bxb1 Kf6 32.Nd2 f4 33.f3 h5 34.Kf2 Ne6 35.
Nb3 Ng5 36.Nc1 Bf5 37.Bxf5 Kxf5 38.Ne2 h4 39.Ng1 Ne6 40.Ne2 h3 41.fxg4+ 
Kxg4 42.gxh3+ Kxh3 43.Kf3 Kxh2 44.Nxf4 Nxf4 45.Kxf4 Kg2 46.Ke5 Kf3 47.Kd6 
Ke4 48.Kc7 Kxd4 49.Kxb7 Kxc5 50.Kxa6 d4 51.Kb7 d3 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.02"]
[Round "8"]
[White "Fedorowicz, John"]
[Black "Shamkovich, Leonid"]
[Result "0-1"]
[WhiteElo "2440"]
[BlackElo "2485"]
[ECO "B42"]
[EventDate "1977.09.25"]
[PlyCount "58"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.c4 Nc6 8.Nxc6 
bxc6 9.b3 Nd7 10.Bb2 e5 11.Nc3 Nc5 12.Rc1 a5 13.Bb1 Be7 14.Ne2 O-O 15.Ng3 
Re8 16.Qf3 Bf8 17.Rfd1 g6 18.Rc3 Qh4 19.h3 Ra7 20.Bc1 Ne6 21.Ne2 c5 22.
Rcd3 Nd4 23.Qe3 f5 24.exf5 Bxf5 25.Nc3 Rf7 26.Nd5 Bxd3 27.Bxd3 e4 28.Bf1 
Bg7 29.Qd2 Ref8 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.02"]
[Round "8"]
[White "Grefe, John"]
[Black "Soltis, Andrew E"]
[Result "0-1"]
[WhiteElo "2425"]
[BlackElo "2450"]
[ECO "A40"]
[EventDate "1977.09.25"]
[PlyCount "80"]

1.c4 b6 2.d4 Bb7 3.Nc3 e6 4.a3 f5 5.d5 Nf6 6.g3 a5 7.Bg2 Na6 8.Nf3 Nc5 9.
O-O Be7 10.Nd4 O-O 11.Qc2 Ng4 12.Rd1 Bf6 13.h3 Bxd4 14.Rxd4 e5 15.Rd1 Nf6 
16.Be3 d6 17.Bxc5 bxc5 18.Qxf5 Bc8 19.Qc2 Bd7 20.Nb5 Bxb5 21.cxb5 Qe8 22.
a4 e4 23.Ra3 Qh5 24.Re3 Rae8 25.Qc3 Re5 26.f4 exf3 27.Rxe5 fxe2 28.Rxe2 
Qxe2 29.Re1 Qh5 30.Re7 Qg5 31.Rxc7 Re8 32.b6 Nh5 33.h4 Qg4 34.Qf3 Qd4+ 35.
Kh2 Nf6 36.Kh3 Qxb2 37.b7 Qb6 38.Rc6 Qxb7 39.Rxd6 Qc8+ 40.Re6 Nxd5 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.02"]
[Round "8"]
[White "Matera, Salvatore Joseph"]
[Black "Ghizdavu, Dimitru"]
[Result "0-1"]
[BlackElo "2410"]
[ECO "B08"]
[EventDate "1977.09.25"]
[PlyCount "84"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.Be2 Nf6 5.Nc3 O-O 6.O-O c6 7.a4 a5 8.Be3 Na6 
9.h3 Nb4 10.Qc1 Qc7 11.Nd2 d5 12.e5 Nd7 13.Na2 Na6 14.Qd1 c5 15.c3 Nb6 16.
b3 Be6 17.f4 c4 18.b4 axb4 19.cxb4 Nb8 20.a5 Nc8 21.g4 Qd7 22.Nf3 f6 23.
Qc2 Nc6 24.Rad1 b6 25.axb6 Nxb6 26.b5 Na5 27.Nc3 Nb3 28.Nh4 f5 29.gxf5 
Bxf5 30.Nxf5 Qxf5 31.Qxf5 gxf5 32.e6 Rf6 33.Bf2 Rd8 34.Kh2 Rxe6 35.Rg1 Rg6
36.Rg5 e6 37.Bh5 Rxg5 38.fxg5 Ra8 39.Kg1 Ra3 40.Ne2 Ra2 41.Be1 Rc2 42.Bg3 
c3 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.02"]
[Round "8"]
[White "Reshevsky, Samuel Herman"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2580"]
[ECO "E63"]
[EventDate "1977.09.25"]
[PlyCount "28"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nc6 7.O-O a6 8.b3 Rb8 
9.Bb2 b5 10.cxb5 axb5 11.d5 Na5 12.Re1 c5 13.dxc6 Nxc6 14.Nd4 Nxd4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.02"]
[Round "8"]
[White "Tarjan, James Edward"]
[Black "Peters, John"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2370"]
[ECO "E14"]
[EventDate "1977.09.25"]
[PlyCount "119"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.b3 O-O 8.Bb2 cxd4 
9.exd4 d5 10.Nbd2 Nc6 11.Rc1 Rc8 12.Qe2 Re8 13.Rfd1 g6 14.h3 Nh5 15.Qe3 
Ng7 16.g4 Bd6 17.Qh6 f6 18.Nh4 Ne7 19.c5 Bb8 20.Ndf3 Rf8 21.b4 Bc6 22.b5 
Be8 23.c6 Kh8 24.Ng2 Ng8 25.Qe3 g5 26.h4 Nh6 27.Nd2 Nxg4 28.Qh3 Bh5 29.f3 
Nh6 30.Ne3 Bf4 31.Ng4 Nhf5 32.hxg5 fxg5 33.Nf1 Nh4 34.Rc2 Bd6 35.Rf2 Rf4 
36.Nfh2 Ngf5 37.Bc1 Nxd4 38.Bxf4 Bxf4 39.Nf1 e5 40.Kh1 Rc7 41.Re1 Ndxf3 
42.Rxf3 Nxf3 43.Qxf3 e4 44.Bxe4 dxe4 45.Rxe4 Rg7 46.Ng3 Bf7 47.Nf5 Bd5 48.
Nxg7 Bxe4 49.Qxe4 Qd1+ 50.Kg2 Qxg4+ 51.Kf1 Qh3+ 52.Kf2 Qh2+ 53.Kf1 Kxg7 
54.Qe7+ Kg6 55.Qe6+ Kh5 56.Qf7+ Kg4 57.Qd7+ Kf3 58.Qd3+ Be3 59.Qd5+ Kg4 
60.Qe6+ 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.02"]
[Round "8"]
[White "Zuckerman, Bernard"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2545"]
[ECO "E38"]
[EventDate "1977.09.25"]
[PlyCount "16"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Nc6 6.Nf3 Bxc5 7.Bg5 Nd4 8.Nxd4
Bxd4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.03"]
[Round "9"]
[White "Browne, Walter Shawn"]
[Black "Ghizdavu, Dimitru"]
[Result "1/2-1/2"]
[WhiteElo "2545"]
[BlackElo "2410"]
[ECO "B33"]
[EventDate "1977.09.25"]
[PlyCount "35"]

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.g3 fxe4 12.Bg2 Be6 13.Bxe4 Bg7 14.Qh5 Rc8 15.
Rd1 Ne7 16.c3 Rc5 17.Nb4 Qb6 18.Nd3 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.03"]
[Round "9"]
[White "Byrne, Robert"]
[Black "Shamkovich, Leonid"]
[Result "1-0"]
[WhiteElo "2580"]
[BlackElo "2485"]
[ECO "B42"]
[EventDate "1977.09.25"]
[PlyCount "81"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.b3 Be7 8.c4 O-O 
9.Bb2 b6 10.Nc3 Bb7 11.Rc1 Nbd7 12.Re1 Re8 13.Bb1 Bf8 14.Rc2 Rc8 15.Rce2 
Qc7 16.Kh1 g6 17.Qd2 Bg7 18.f4 Rcd8 19.Nf3 Nh5 20.Ng5 Ndf6 21.Rf1 Bc6 22.
a4 Qb7 23.Qe1 h6 24.Nh3 b5 25.axb5 axb5 26.cxb5 Bxb5 27.Nxb5 Qxb5 28.e5 
Nd5 29.g4 Qxb3 30.gxh5 Qxh3 31.hxg6 fxg6 32.exd6 Bxb2 33.Rxb2 Ne3 34.Bxg6 
Rf8 35.Rg1 Qf3+ 36.Rbg2 Nxg2 37.Qxe6+ Kg7 38.Be4 Qh5 39.Qe7+ Qf7 40.Rxg2+ 
Kh8 41.Bd5 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.03"]
[Round "9"]
[White "Christiansen, Larry Mark"]
[Black "Reshevsky, Samuel Herman"]
[Result "1-0"]
[WhiteElo "2460"]
[BlackElo "2490"]
[ECO "B82"]
[EventDate "1977.09.25"]
[PlyCount "55"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.f4 b5 8.Bd3 Bb7 
9.O-O Nbd7 10.Qf3 b4 11.Nce2 Nc5 12.Ng3 h5 13.a3 h4 14.Nge2 Nfxe4 15.Nxe6 
fxe6 16.axb4 Ng3 17.Bg6+ Kd7 18.Qg4 Nxe2+ 19.Qxe2 Ne4 20.Bd4 Nf6 21.Rfe1 
e5 22.fxe5 dxe5 23.Bxe5 Qb6+ 24.Kh1 Bd6 25.Rad1 Nd5 26.Be4 Rhe8 27.Bxd5 
Kc7 28.Qc4+ 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.03"]
[Round "9"]
[White "Lein, Anatoly"]
[Black "Soltis, Andrew E"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2450"]
[ECO "E95"]
[EventDate "1977.09.25"]
[PlyCount "112"]

1.e4 g6 2.d4 Bg7 3.c4 d6 4.Nc3 Nf6 5.Nf3 O-O 6.Be2 Nbd7 7.O-O e5 8.Re1 c6 
9.Bf1 Ng4 10.h3 Nh6 11.dxe5 dxe5 12.Be3 f6 13.c5 Nf7 14.Bc4 Qe7 15.b4 b6 
16.cxb6 Qxb4 17.Qb3 a5 18.Red1 Rb8 19.Rab1 Qe7 20.Na4 Kh8 21.Be6 Bh6 22.
Bxd7 Bxd7 23.Bc5 Qe8 24.Bxf8 Bxf8 25.Rbc1 Be6 26.Qb2 Bc8 27.Nc5 Nd6 28.b7 
Bxb7 29.Rxd6 Bxd6 30.Nxb7 Bb4 31.Rb1 Rxb7 32.a3 c5 33.axb4 cxb4 34.Qd2 Rd7
35.Qa2 Qd8 36.Kh2 Kg7 37.Ra1 Ra7 38.Qa4 Qb6 39.Ra2 b3 40.Rb2 Rb7 41.Nd2 
Qxf2 42.Qxa5 Ra7 43.Qc3 Qf4+ 44.Qg3 Ra2 45.Qxf4 exf4 46.Nc4 Rxb2 47.Nxb2 
Kf7 48.Kg1 Ke6 49.Nd3 f5 50.e5 Kd5 51.Kf2 g5 52.e6 Kd6 53.Kf3 Ke7 54.Ke2 
Kf6 55.Kf2 Ke7 56.Kf3 Kf6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.03"]
[Round "9"]
[White "Peters, John"]
[Black "Matera, Salvatore Joseph"]
[Result "0-1"]
[WhiteElo "2370"]
[ECO "B42"]
[EventDate "1977.09.25"]
[PlyCount "48"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.f4 Be7 8.c3 Qc7 
9.Be3 O-O 10.Nd2 Re8 11.g4 e5 12.Nf5 exf4 13.Bxf4 Bf8 14.Qf3 Be6 15.Qg3 
Nbd7 16.Kh1 Ne5 17.Bxe5 dxe5 18.Rf3 Rad8 19.Qh4 Qc6 20.Rg1 Rxd3 21.Rxd3 
Nxe4 22.Nf3 Bc4 23.Rd8 Nf6 24.Rxe8 Qxf3+ 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.03"]
[Round "9"]
[White "Tarjan, James Edward"]
[Black "Fedorowicz, John"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2440"]
[ECO "A32"]
[EventDate "1977.09.25"]
[PlyCount "42"]

1.d4 Nf6 2.c4 c5 3.Nf3 e6 4.g3 cxd4 5.Nxd4 Qc7 6.Nc3 a6 7.Qd3 b5 8.cxb5 
Bb7 9.e4 Bb4 10.Bg2 Nxe4 11.Bf4 Nc5 12.Qc4 e5 13.Bxb7 Qxb7 14.O-O-O exd4 
15.Qxd4 O-O 16.Qxb4 Ne6 17.Qe4 Qxe4 18.Nxe4 Nxf4 19.gxf4 axb5 20.Kb1 Ra4 
21.Rhe1 f5 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.03"]
[Round "9"]
[White "Zuckerman, Bernard"]
[Black "Grefe, John"]
[Result "0-1"]
[WhiteElo "2450"]
[BlackElo "2425"]
[ECO "B85"]
[EventDate "1977.09.25"]
[PlyCount "90"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Be7 8.f4 O-O
9.Qe1 Nc6 10.Be3 Qc7 11.Qg3 Nxd4 12.Bxd4 b5 13.a3 Bb7 14.Kh1 g6 15.f5 e5 
16.Be3 d5 17.exd5 Nxd5 18.Nxd5 Bxd5 19.f6 Bc5 20.Bh6 Rfe8 21.Qg5 Rad8 22.
Bg7 Qc6 23.Rae1 Be4 24.c3 Re6 25.Bf3 Bxf3 26.Rxf3 Qe4 27.Qc1 Qd5 28.b4 e4 
29.Rh3 e3 30.bxc5 Qd2 31.Qa1 e2 32.Kg1 Qd1 33.Qxd1 exd1=Q 34.Rxd1 Rxd1+ 
35.Kf2 Rd2+ 36.Kf1 Rd1+ 37.Kf2 Rd2+ 38.Kf1 Rd5 39.Kf2 Rf5+ 40.Rf3 Rxf3+ 
41.Kxf3 Rc6 42.Ke4 Rxc5 43.Kd3 Rc4 44.Kc2 Rh4 45.h3 g5 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.04"]
[Round "10"]
[White "Christiansen, Larry Mark"]
[Black "Tarjan, James Edward"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2495"]
[ECO "D41"]
[EventDate "1977.09.25"]
[PlyCount "45"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 e6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nc6 7.O-O Be7 8.Nxd5 
exd5 9.d4 O-O 10.dxc5 Bxc5 11.Bg5 f6 12.Rc1 Bb6 13.Bd2 Bg4 14.Qb3 Kh8 15.
e3 Qd7 16.Bc3 Rad8 17.a4 Rfe8 18.Qb5 Bxf3 19.Bxf3 d4 20.exd4 Nxd4 21.Bxd4 
Qxb5 22.axb5 Rxd4 23.Rc2 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.04"]
[Round "10"]
[White "Fedorowicz, John"]
[Black "Browne, Walter Shawn"]
[Result "0-1"]
[WhiteElo "2440"]
[BlackElo "2545"]
[ECO "B95"]
[EventDate "1977.09.25"]
[PlyCount "71"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qf3 Nbd7 8.O-O-O
Qc7 9.Qh3 Be7 10.g4 b5 11.Bg2 Bb7 12.Rhe1 b4 13.Nce2 Rc8 14.Kb1 O-O 15.Ka1
Rfe8 16.Ng3 Nb6 17.Bc1 Bf8 18.g5 Nfd7 19.f4 e5 20.Ndf5 Qxc2 21.Nh5 b3 22.
Qxb3 Qxb3 23.axb3 g6 24.Nxd6 Rxc1+ 25.Rxc1 Bxd6 26.Red1 Bb8 27.Bh3 gxh5 
28.Bxd7 Nxd7 29.Rxd7 Bxe4 30.fxe5 Bxe5 31.h3 Bf5 32.Ra7 Bxh3 33.Rh1 Bg4 
34.Rf1 Be6 35.Rh1 Rb8 36.Re1 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.04"]
[Round "10"]
[White "Grefe, John"]
[Black "Ghizdavu, Dimitru"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2410"]
[ECO "A36"]
[EventDate "1977.09.25"]
[PlyCount "101"]

1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nf6 5.e4 d6 6.d3 Nc6 7.Nge2 O-O 8.O-O a6 
9.Rb1 Rb8 10.a4 Bd7 11.h3 Ne8 12.Be3 Nc7 13.d4 cxd4 14.Nxd4 Nxd4 15.Bxd4 
Bxd4 16.Qxd4 b5 17.axb5 axb5 18.cxb5 Bxb5 19.Rfd1 Ne6 20.Qe3 Bc4 21.e5 Bb3
22.Rd2 Qb6 23.exd6 Qxe3 24.fxe3 exd6 25.Rxd6 Rfd8 26.Rxd8+ Rxd8 27.Re1 Nc5
28.Bf1 Rb8 29.Bb5 Kg7 30.Kg2 Bc2 31.Ra1 Bd3 32.Bxd3 Nxd3 33.Nd1 Nxb2 34.
Rb1 Nxd1 35.Rxb8 Nxe3+ 36.Kf3 Nf5 37.g4 Nd4+ 38.Ke4 Ne6 39.h4 h6 40.Ke5 
Nf8 41.Rd8 Nh7 42.Rd6 Nf8 43.Rd3 Nh7 44.Rf3 Kf8 45.Kd6 Ke8 46.Rf1 Kf8 47.
Kd7 Kg7 48.Ke7 f6 49.Rf2 h5 50.gxh5 g5 51.hxg5 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.04"]
[Round "10"]
[White "Matera, Salvatore Joseph"]
[Black "Byrne, Robert"]
[Result "1/2-1/2"]
[BlackElo "2580"]
[ECO "A93"]
[EventDate "1977.09.25"]
[PlyCount "39"]

1.d4 f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 5.O-O O-O 6.c4 d5 7.b3 b6 8.Qc2 c6 9.
Nbd2 Bb7 10.Ne5 Nbd7 11.Nd3 Re8 12.Bb2 Rc8 13.Rad1 c5 14.dxc5 Nxc5 15.Nxc5
Bxc5 16.e4 dxe4 17.Nxe4 Bxe4 18.Bxe4 Qe7 19.Bf3 Rcd8 20.Rfe1 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.04"]
[Round "10"]
[White "Reshevsky, Samuel Herman"]
[Black "Lein, Anatoly"]
[Result "1-0"]
[WhiteElo "2490"]
[BlackElo "2525"]
[ECO "E09"]
[EventDate "1977.09.25"]
[PlyCount "81"]

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2 b6
9.e4 Bb7 10.b3 Rc8 11.Bb2 c5 12.e5 Ne8 13.cxd5 Bxd5 14.Rac1 Nc7 15.Qd3 
cxd4 16.Rfd1 Nc5 17.Qxd4 Bb7 18.Qg4 Nd3 19.Nf1 Bc5 20.Rd2 Na6 21.Ng5 Bxf2+
22.Rxf2 Rxc1 23.Bxc1 Bxg2 24.Qh5 h6 25.Nxf7 Qe8 26.Nxh6+ gxh6 27.Rxf8+ 
Qxf8 28.Qg6+ Kh8 29.Qxd3 Nb4 30.Qe2 Bb7 31.Qe3 Nxa2 32.Bd2 Qc5 33.Qxc5 
bxc5 34.Bxh6 Bd5 35.Nd2 Nc1 36.Be3 Nxb3 37.Nxb3 Bxb3 38.Bxc5 a5 39.Kf2 Kg7
40.g4 a4 41.Kg3 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.04"]
[Round "10"]
[White "Soltis, Andrew E"]
[Black "Shamkovich, Leonid"]
[Result "1-0"]
[WhiteElo "2450"]
[BlackElo "2485"]
[ECO "B89"]
[EventDate "1977.09.25"]
[PlyCount "84"]

1.e4 c5 2.Nc3 Nc6 3.Nge2 d6 4.d4 cxd4 5.Nxd4 Nf6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Be7 9.Qe2 Qc7 10.O-O-O O-O 11.Rhg1 Na5 12.g4 Re8 13.g5 Nxb3+ 14.axb3 Nd7 
15.h4 Bf8 16.h5 g6 17.hxg6 fxg6 18.f4 b5 19.f5 exf5 20.Nd5 Qb7 21.Nxf5 Re6
22.Qh2 Ne5 23.Nd4 Re7 24.Bf4 Rf7 25.Bxe5 dxe5 26.Qxe5 Bg7 27.Nf6+ Kh8 28.
Rh1 h5 29.Nf5 Bxf5 30.exf5 Qe7 31.Qxe7 Rxe7 32.fxg6 Bf8 33.Nxh5 Kg8 34.
Nf6+ Kg7 35.Rh6 Rc8 36.Nh5+ Kg8 37.g7 Bxg7 38.Rg6 a5 39.Nxg7 Rxg7 40.Rxg7+
Kxg7 41.Rd5 Rb8 42.Rd6 Rh8 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.04"]
[Round "10"]
[White "Zuckerman, Bernard"]
[Black "Peters, John"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2370"]
[ECO "C19"]
[EventDate "1977.09.25"]
[PlyCount "48"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 Bd7 8.a4 Qa5
9.Qd2 Nbc6 10.Bd3 c4 11.Be2 f6 12.O-O O-O-O 13.Ba3 Ng6 14.Bd6 Rdg8 15.Rfe1
Nd8 16.Bf1 Nf7 17.Bb4 Qc7 18.Qe3 h5 19.g3 h4 20.g4 h3 21.a5 Nh4 22.Nxh4 
Rxh4 23.Qg3 Rgh8 24.f3 R4h6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.05"]
[Round "11"]
[White "Browne, Walter Shawn"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[WhiteElo "2545"]
[BlackElo "2490"]
[ECO "E19"]
[EventDate "1977.09.25"]
[PlyCount "21"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 Ne4 7.Qc2 Nxc3 8.Qxc3 
O-O 9.O-O Be4 10.Bf4 Nc6 11.Rfd1 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.05"]
[Round "11"]
[White "Byrne, Robert"]
[Black "Fedorowicz, John"]
[Result "1-0"]
[WhiteElo "2580"]
[BlackElo "2440"]
[ECO "B60"]
[EventDate "1977.09.25"]
[PlyCount "59"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Qb6 7.Nb3 e6 8.Bd3 
Be7 9.O-O O-O 10.Kh1 a6 11.f4 h6 12.Bxf6 Bxf6 13.Qh5 Qc7 14.Rae1 b5 15.Re3
b4 16.Nd1 Ne7 17.Rg3 Kh8 18.Nd2 Bb7 19.Nf3 Ng8 20.b3 a5 21.Ne3 a4 22.e5 
dxe5 23.Nxe5 g6 24.Qg4 h5 25.Rh3 Nh6 26.Rxh5 gxh5 27.Qxh5 Kg7 28.N3g4 Rh8 
29.Nxf6 Kf8 30.Nh7+ 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.05"]
[Round "11"]
[White "Ghizdavu, Dimitru"]
[Black "Soltis, Andrew E"]
[Result "1-0"]
[WhiteElo "2410"]
[BlackElo "2450"]
[ECO "B15"]
[EventDate "1977.09.25"]
[PlyCount "75"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d5 5.h3 Nf6 6.Bd3 Nxe4 7.Nxe4 dxe4 8.Bxe4 
c5 9.dxc5 Qa5+ 10.c3 Qxc5 11.O-O O-O 12.Be3 Qc7 13.Qe2 Nd7 14.Rfe1 e5 15.
Bd5 Nf6 16.Bb3 e4 17.Nd2 Bf5 18.Bd4 Rae8 19.Qc4 Qf4 20.Re3 Rd8 21.Qe2 Rfe8
22.Re1 b6 23.Bxf6 Bxf6 24.Qc4 Be6 25.Qxe4 Bg5 26.Nf3 Bd7 27.Qd5 h6 28.h4 
Be6 29.Qe4 Qxe4 30.Rxe4 Bd2 31.R1e2 Bc1 32.Bxe6 Rxe6 33.Rxe6 fxe6 34.g3 
Rd1+ 35.Kg2 Kf7 36.Nd4 Rd2 37.Rxd2 Bxd2 38.Nb3 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.05"]
[Round "11"]
[White "Lein, Anatoly"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2450"]
[ECO "A04"]
[EventDate "1977.09.25"]
[PlyCount "22"]

1.Nf3 c5 2.g3 g6 3.Bg2 Bg7 4.O-O Nf6 5.c4 O-O 6.Nc3 d5 7.cxd5 Nxd5 8.Nxd5 
Qxd5 9.d3 Nc6 10.a3 Bd7 11.Ng5 Qf5 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.05"]
[Round "11"]
[White "Peters, John"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2460"]
[ECO "B13"]
[EventDate "1977.09.25"]
[PlyCount "82"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nf6 5.c3 Nc6 6.Bf4 e6 7.Nd2 Bd6 8.Bxd6 
Qxd6 9.Ngf3 O-O 10.O-O Bd7 11.Qe2 Rab8 12.a4 g6 13.Rfe1 Kg7 14.Ne5 Nh5 15.
Qe3 Rbd8 16.h4 Bc8 17.Ndf3 f6 18.Nxc6 bxc6 19.Bf1 Rde8 20.g3 Rf7 21.c4 
Rfe7 22.Qc3 e5 23.c5 Qd8 24.dxe5 fxe5 25.Rxe5 Rxe5 26.Nxe5 d4 27.Qe1 Qf6 
28.f4 Nxf4 29.gxf4 Qxf4 30.Qf2 Qxe5 31.Rd1 Rd8 32.b4 Bf5 33.Bg2 Qf6 34.b5 
cxb5 35.axb5 d3 36.b6 axb6 37.cxb6 Qc3 38.b7 Qc7 39.Qb2+ Kh6 40.Qd2+ Kg7 
41.Qb2+ Kh6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.05"]
[Round "11"]
[White "Shamkovich, Leonid"]
[Black "Matera, Salvatore Joseph"]
[Result "0-1"]
[WhiteElo "2485"]
[ECO "B47"]
[EventDate "1977.09.25"]
[PlyCount "50"]

1.e4 c5 2.Nf3 e6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 Qc7 6.Be2 a6 7.O-O Nf6 8.Kh1 
Bb4 9.Qd3 O-O 10.f4 d6 11.Nb3 Bd7 12.Bd2 Na5 13.a3 Nxb3 14.cxb3 Bc5 15.b4 
Bb6 16.Rac1 Bc6 17.b5 axb5 18.Nxb5 Qd8 19.Bf3 d5 20.e5 Ne4 21.Be1 Ra4 22.
Qb3 Ra8 23.Rd1 Nc5 24.Qc2 Bxb5 25.Be2 Ba4 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.05"]
[Round "11"]
[White "Tarjan, James Edward"]
[Black "Grefe, John"]
[Result "0-1"]
[WhiteElo "2495"]
[BlackElo "2425"]
[ECO "E73"]
[EventDate "1977.09.25"]
[PlyCount "124"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Nbd7 7.Qd2 e5 8.d5 Nc5 
9.f3 h6 10.Be3 a5 11.O-O-O Kh7 12.h4 Nh5 13.g4 Nf4 14.Nh3 Nxh3 15.Rxh3 Bd7
16.h5 g5 17.Rhh1 Qb8 18.b3 Rd8 19.Kb1 Bf6 20.Rc1 Be8 21.Rhd1 Qa7 22.Rc2 
Qa6 23.Rb2 c6 24.Rc1 Be7 25.Kc2 a4 26.Kd1 axb3 27.axb3 Qa3 28.Nb1 Qa7 29.
Ke1 Qb8 30.Nc3 Ra3 31.Bd1 Qc7 32.b4 Nd7 33.Be2 Rda8 34.Nb1 Ra1 35.Nc3 c5 
36.Nb5 Qc8 37.Rcb1 b6 38.Qc1 Rxb1 39.Qxb1 cxb4 40.Rxb4 Nc5 41.Nc3 Bd8 42.
Rb2 Ra3 43.Qc2 b5 44.Ra2 b4 45.Rxa3 bxa3 46.Qa2 Qa6 47.Bc1 Ba5 48.Qxa3 Qb6
49.Kf1 Nb3 50.Bb2 Nd2+ 51.Kg2 Bb4 52.Qa8 Qe3 53.Qxe8 Kg7 54.Kg3 Nxe4+ 55.
Nxe4 Qg1+ 56.Kh3 Qh1+ 57.Kg3 Be1+ 58.Nf2 Qh4+ 59.Kg2 Qxf2+ 60.Kh1 Qh4+ 61.
Kg2 Qg3+ 62.Kh1 Bf2 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.06"]
[Round "12"]
[White "Christiansen, Larry Mark"]
[Black "Ghizdavu, Dimitru"]
[Result "1-0"]
[WhiteElo "2460"]
[BlackElo "2410"]
[ECO "B05"]
[EventDate "1977.09.25"]
[PlyCount "80"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 c6 6.O-O Bxf3 7.Bxf3 dxe5 8.dxe5
e6 9.Qe2 Nd7 10.b3 Qc7 11.Bb2 g5 12.Nd2 Bg7 13.Rfe1 O-O-O 14.g3 h5 15.Nc4 
Kb8 16.a4 h4 17.Rad1 Rdg8 18.Nd6 hxg3 19.hxg3 g4 20.Bg2 Bf8 21.c4 Ne7 22.
Nxf7 Rh5 23.Qd2 Nb6 24.Nd6 Bh6 25.Qd4 Nbc8 26.Ba3 Nf5 27.Qe4 Qb6 28.c5 Qc7
29.b4 Nce7 30.b5 Nd5 31.bxc6 Qxc6 32.Nxf5 Rxf5 33.Qxf5 exf5 34.Bxd5 Qxa4 
35.Bxg8 Qxa3 36.e6 Bg5 37.e7 Bxe7 38.Rxe7 a5 39.Bd5 Qxc5 40.Rxb7+ Kc8 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.06"]
[Round "12"]
[White "Grefe, John"]
[Black "Fedorowicz, John"]
[Result "1-0"]
[WhiteElo "2425"]
[BlackElo "2440"]
[ECO "E10"]
[EventDate "1977.09.25"]
[PlyCount "91"]

1.d4 Nf6 2.c4 c5 3.Nf3 e6 4.e3 b6 5.Nc3 Be7 6.d5 d6 7.e4 exd5 8.cxd5 O-O 
9.Nd2 Re8 10.Bb5 Nfd7 11.a4 a6 12.Be2 Bf6 13.O-O Ne5 14.f4 Ng6 15.Kh1 Ra7 
16.Bd3 Rae7 17.Qc2 Rb7 18.Rb1 b5 19.axb5 axb5 20.Bxb5 Rxb5 21.Nxb5 Ba6 22.
Nc3 Bxf1 23.Nxf1 Na6 24.Be3 Nb4 25.Qd2 Qa5 26.Ng3 Qa6 27.Nf5 Nh4 28.Nxd6 
Qxd6 29.e5 Qe7 30.Re1 h6 31.exf6 Qxf6 32.Bxc5 Rxe1+ 33.Qxe1 Nd3 34.Qe8+ 
Kh7 35.Qe4+ Qf5 36.Qxf5+ Nxf5 37.b4 Nxf4 38.b5 Nd3 39.Ba3 Kg6 40.b6 Ne5 
41.b7 Nd7 42.g4 Ne3 43.Bd6 Nxg4 44.Ne4 f5 45.Nc5 Ngf6 46.Be5 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.06"]
[Round "12"]
[White "Lein, Anatoly"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2545"]
[ECO "B51"]
[EventDate "1977.09.25"]
[PlyCount "100"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 Bg4 8.h3 
Bxf3 9.Qxf3 g6 10.Qd1 Bh6 11.Na3 O-O 12.Nc4 d5 13.exd5 Nxd5 14.Ne3 Nxe3 
15.dxe3 Qxd1 16.Rxd1 Rad8 17.Rxd8 Rxd8 18.f4 g5 19.g3 gxf4 20.gxf4 e5 21.
Kf2 Rd6 22.Be2 Rf6 23.Kf3 Ne7 24.Bd3 exf4 25.exf4 Ng6 26.Bxg6 hxg6 27.h4 
Rf5 28.Be3 Kf8 29.b4 cxb4 30.cxb4 Ke8 31.a4 Bf8 32.Rb1 b5 33.axb5 axb5 34.
Ke4 Be7 35.Bd4 Bxh4 36.Ra1 Kd7 37.Ra7+ Kc6 38.Ra6+ Kb7 39.Ra7+ Kc6 40.Ra6+
Kb7 41.Ra7+ Kb8 42.Rd7 Kc8 43.Ra7 Be1 44.Bc5 Rf6 45.Bd4 Rf5 46.Bc5 Bh4 47.
Bd6 Bd8 48.Be5 Bb6 49.Re7 Bd8 50.Ra7 Bb6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.06"]
[Round "12"]
[White "Peters, John"]
[Black "Byrne, Robert"]
[Result "0-1"]
[WhiteElo "2370"]
[BlackElo "2580"]
[ECO "B92"]
[EventDate "1977.09.25"]
[PlyCount "80"]

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 Nc6 10.f4 Nb4 11.Be3 Bd7 12.a5 Bc6 13.Bf3 exf4 14.Bxf4 d5 15.e5 
Ne4 16.Na4 Bb5 17.Re1 Qc7 18.Nd4 Rad8 19.c3 Nc6 20.Bxe4 dxe4 21.Rxe4 Qxa5 
22.b4 Bxa4 23.Rxa4 Qd5 24.Qe2 Nxd4 25.cxd4 f5 26.exf6 Bxf6 27.Kh1 Bxd4 28.
h3 Qb3 29.Qa2 Qxa2 30.Rxa2 Rfe8 31.Rxe8+ Rxe8 32.Rc2 Kf7 33.Rc4 Bf6 34.Kg1
Ke6 35.Kf2 Kd5 36.Rc7 Re7 37.Rc8 Bd4+ 38.Kf3 Re6 39.Rb8 b5 40.Ra8 Bc3 0-1

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.06"]
[Round "12"]
[White "Reshevsky, Samuel Herman"]
[Black "Matera, Salvatore Joseph"]
[Result "1-0"]
[WhiteElo "2490"]
[ECO "E67"]
[EventDate "1977.09.25"]
[PlyCount "76"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nbd7 7.O-O e5 8.Qc2 c6 
9.e4 Qe7 10.Rd1 exd4 11.Nxd4 a5 12.h3 Nc5 13.Bf4 Rd8 14.Nb3 Be6 15.Bf1 Nh5
16.Be3 f5 17.Nxc5 dxc5 18.exf5 Bxf5 19.Qe2 Nf6 20.g4 Be6 21.Na4 Nd7 22.Bg5
Bf6 23.Bxf6 Qxf6 24.Re1 Re8 25.Bg2 Bf7 26.Qd2 Qd4 27.Rad1 Ne5 28.Qg5 Nd3 
29.Re3 Bxc4 30.Nb6 Qxb2 31.Rexd3 Qxb6 32.Rd7 Qb2 33.Qh4 Qh8 34.Rxb7 Rab8 
35.Ra7 Bd5 36.Rxd5 Re1+ 37.Kh2 cxd5 38.Bxd5+ Kf8 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.06"]
[Round "12"]
[White "Tarjan, James Edward"]
[Black "Shamkovich, Leonid"]
[Result "1/2-1/2"]
[WhiteElo "2495"]
[BlackElo "2485"]
[ECO "E20"]
[EventDate "1977.09.25"]
[PlyCount "94"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.Nc3 cxd4 5.Nxd4 Bb4 6.g3 Ne4 7.Qd3 Qa5 8.Nb3 
Qf5 9.Qe3 Nxc3 10.bxc3 Be7 11.Bg2 Nc6 12.O-O Ne5 13.c5 Rb8 14.h3 Nc6 15.g4
Qe5 16.Qf3 Qc7 17.Qe4 d5 18.cxd6 Bxd6 19.c4 O-O 20.Bb2 Bh2+ 21.Kh1 Be5 22.
Ba3 Bxa1 23.Bxf8 Bf6 24.Bc5 Bd7 25.Rd1 Rd8 26.Bd6 Qc8 27.c5 Be8 28.Rc1 b6 
29.Bf4 b5 30.g5 Be7 31.h4 Qa6 32.Rc2 Rd5 33.Kh2 Rd8 34.Be3 g6 35.h5 Qa4 
36.hxg6 hxg6 37.Qxa4 bxa4 38.Nd2 Nb4 39.Rb2 Nd5 40.Bxd5 Rxd5 41.Rb8 Kf8 
42.Nc4 Rd8 43.Rb7 a6 44.a3 Bb5 45.Nd6 Rxd6 46.Rxe7 Kxe7 47.cxd6+ Kxd6 
1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.06"]
[Round "12"]
[White "Zuckerman, Bernard"]
[Black "Soltis, Andrew E"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[BlackElo "2450"]
[ECO "C61"]
[EventDate "1977.09.25"]
[PlyCount "37"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Nxd4 exd4 5.O-O Bc5 6.d3 c6 7.Ba4 Ne7 8.Bg5 
O-O 9.Qh5 d6 10.Bb3 Be6 11.Bxe6 fxe6 12.Nd2 Qd7 13.Nf3 Ng6 14.Qg4 Rf7 15.
Bd2 e5 16.Qxd7 Rxd7 17.g3 a5 18.a4 Bb4 19.Kg2 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.07"]
[Round "13"]
[White "Browne, Walter Shawn"]
[Black "Christiansen, Larry Mark"]
[Result "1-0"]
[WhiteElo "2545"]
[BlackElo "2460"]
[ECO "A40"]
[EventDate "1977.09.25"]
[PlyCount "75"]

1.d4 e6 2.c4 b6 3.d5 Ba6 4.e4 exd5 5.exd5 Nf6 6.Nc3 Bb4 7.Qe2+ Be7 8.Qc2 
c6 9.Bd3 b5 10.cxb5 cxb5 11.Nge2 b4 12.Ne4 Nxd5 13.O-O O-O 14.Rd1 Qa5 15.
N2g3 g6 16.Bh6 Re8 17.Qd2 Nf6 18.Qf4 Qb6 19.Bxa6 Nxa6 20.Rd6 Bxd6 21.Nxf6+
Kh8 22.Bg7+ Kxg7 23.Ngh5+ gxh5 24.Qg5+ Kh8 25.Qh6 Bxh2+ 26.Kh1 Qxf6 27.
Qxf6+ Kg8 28.Qg5+ Kh8 29.Qf6+ Kg8 30.Qg5+ Kh8 31.Kxh2 Re6 32.Rd1 Rg8 33.
Qf4 Reg6 34.g3 f6 35.Rxd7 Nc5 36.Rd6 h4 37.Qxh4 a5 38.Qd4 1-0

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.07"]
[Round "13"]
[White "Byrne, Robert"]
[Black "Zuckerman, Bernard"]
[Result "1/2-1/2"]
[WhiteElo "2580"]
[BlackElo "2450"]
[ECO "E46"]
[EventDate "1977.09.25"]
[PlyCount "30"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 d5 6.a3 Bd6 7.cxd5 exd5 8.Nf4 c6
9.Bd3 a5 10.O-O Na6 11.f3 Nc7 12.Bc2 c5 13.dxc5 Bxc5 14.Kh1 Re8 15.e4 dxe4
1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.07"]
[Round "13"]
[White "Ghizdavu, Dimitru"]
[Black "Fedorowicz, John"]
[Result "1/2-1/2"]
[WhiteElo "2410"]
[BlackElo "2440"]
[ECO "B35"]
[EventDate "1977.09.25"]
[PlyCount "58"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 Nc6 6.Be3 g6 7.h3 Bg7 8.Bc4 
O-O 9.Bb3 Na5 10.O-O b6 11.Re1 Nxb3 12.axb3 Bb7 13.Bg5 a6 14.Nd5 Nxd5 15.
exd5 Re8 16.c4 Qd7 17.Qd2 b5 18.Re2 e5 19.dxe6 fxe6 20.Rae1 e5 21.Nc2 d5 
22.cxd5 Qxd5 23.Qxd5+ Bxd5 24.b4 Bc4 25.Rd2 h6 26.Be3 Rad8 27.Red1 Rxd2 
28.Rxd2 e4 29.Rd6 Re6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.07"]
[Round "13"]
[White "Lein, Anatoly"]
[Black "Tarjan, James Edward"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2495"]
[ECO "C83"]
[EventDate "1977.09.25"]
[PlyCount "50"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 a6 6.Ba4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Be7 10.Bc2 O-O 11.Nbd2 f5 12.Nd4 Nxd4 13.cxd4 Qd7 14.Nb3 a5 15.f3
a4 16.fxe4 axb3 17.Bxb3 fxe4 18.Rxf8+ Rxf8 19.Be3 Kh8 20.Rc1 c6 21.Qd2 Bg4
22.a4 bxa4 23.Bxa4 Rc8 24.b3 Qb7 25.h3 Be6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.07"]
[Round "13"]
[White "Peters, John"]
[Black "Grefe, John"]
[Result "1/2-1/2"]
[WhiteElo "2370"]
[BlackElo "2425"]
[ECO "B51"]
[EventDate "1977.09.25"]
[PlyCount "65"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.c3 a6 6.Ba4 b5 7.Bc2 Bg4 8.h3 Bxf3
9.Qxf3 g6 10.d3 Bg7 11.Be3 Nf6 12.d4 cxd4 13.cxd4 Rc8 14.Nc3 O-O 15.Rfd1 
Nd7 16.Rac1 Na5 17.Bd3 Nc6 18.Bb1 b4 19.Ne2 Qb6 20.Qg4 Qb7 21.f4 Na5 22.
Bd3 Rxc1 23.Rxc1 Rc8 24.Qg5 Rxc1+ 25.Nxc1 Qb6 26.Qd5 e6 27.Qa8+ Nb8 28.Kh1
b3 29.Nxb3 Nxb3 30.axb3 Qxb3 31.f5 Bf8 32.fxe6 fxe6 33.Bc4 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.07"]
[Round "13"]
[White "Shamkovich, Leonid"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2490"]
[ECO "B52"]
[EventDate "1977.09.25"]
[PlyCount "22"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.Nc3 g6 7.d4 cxd4 8.
Nxd4 Bg7 9.Be3 Nf6 10.f3 O-O 11.O-O a6 1/2-1/2

[Event "25th USA-ch"]
[Site "Mentor, OH USA"]
[Date "1977.10.07"]
[Round "13"]
[White "Soltis, Andrew E"]
[Black "Matera, Salvatore Joseph"]
[Result "1/2-1/2"]
[WhiteElo "2450"]
[ECO "B47"]
[EventDate "1977.09.25"]
[PlyCount "36"]

1.e4 c5 2.Nf3 e6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 Qc7 6.f4 a6 7.Nf3 b5 8.Bd3 Bb7
9.O-O Bc5+ 10.Kh1 Nge7 11.a3 b4 12.Na4 Ba7 13.Bd2 bxa3 14.Rxa3 O-O 15.Qe1 
f6 16.Be3 Bxe3 17.Qxe3 Nb4 18.Qc5 Qxc5 1/2-1/2
