[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.11"]
[Round "1"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "B19"]
[EventDate "1966.04.11"]
[PlyCount "73"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.Bd3 
Bxd3 9.Qxd3 Qc7 10.Bd2 e6 11.O-O-O O-O-O 12.c4 Ngf6 13.Kb1 c5 14.Bc3 cxd4 
15.Nxd4 a6 16.Nf3 Bc5 17.Qe2 Bd6 18.Ne4 Be7 19.Nxf6 Bxf6 20.Bxf6 Nxf6 21.
Ne5 Rxd1+ 22.Rxd1 Rd8 23.Rxd8+ Kxd8 24.Qd3+ Ke7 25.Qd4 h5 26.a3 Nd7 27.
Nxd7 Qxd7 28.Qc5+ Qd6 29.Qg5+ Ke8 30.Qe3 Qc6 31.Qg3 g6 32.b3 Qe4+ 33.Kb2 
e5 34.Qe3 Qxg2 35.Qxe5+ Kf8 36.Qh8+ Ke7 37.Qe5+ 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.13"]
[Round "2"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "D59"]
[EventDate "1966.04.11"]
[PlyCount "100"]

1.c4 e6 2.Nc3 d5 3.d4 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bh4 b6 8.cxd5 Nxd5
9.Bxe7 Qxe7 10.Nxd5 exd5 11.Rc1 Be6 12.Qa4 c5 13.Qa3 Rc8 14.Be2 a5 15.O-O 
Na6 16.dxc5 bxc5 17.Nd4 Bd7 18.Bxa6 Rxa6 19.Ne2 a4 20.Rfd1 Qd6 21.Rd2 Be6 
22.h3 Rc7 23.Nf4 c4 24.Qxd6 Rxd6 25.Ne2 a3 26.bxa3 Bf5 27.Nc3 Rcd7 28.Rd4 
Kf8 29.f3 Ke7 30.Rcd1 Be6 31.Rb1 Ra6 32.a4 Kd6 33.Kf2 Kc5 34.Rd2 Ra5 35.
Ke2 Bf5 36.e4 dxe4 37.fxe4 Rxd2+ 38.Kxd2 Bd7 39.Rb7 Kc6 40.Rb8 Kc5 41.Rf8 
Be6 42.Rb8 Bd7 43.Rb7 Kc6 44.Rb2 Kc5 45.Ke3 Ra7 46.Rd2 Bc6 47.g4 Rb7 48.
Rf2 Rd7 49.Rd2 Rb7 50.h4 f6 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.15"]
[Round "3"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "D26"]
[EventDate "1966.04.11"]
[PlyCount "86"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.cxd5 Nxd5 8.Bc4 
Nf6 9.O-O O-O 10.Qe2 Nc6 11.Be3 Na5 12.Bd3 b6 13.Bg5 Bb7 14.Rad1 Rc8 15.
Rfe1 h6 16.Bc1 Bb4 17.Bd2 Bxc3 18.bxc3 Qd5 19.Qf1 Qxa2 20.Ne5 Nb3 21.Re2 
Nxd2 22.Rexd2 Qd5 23.c4 Qd6 24.Qe2 Rfd8 25.h3 Nd7 26.Ng4 h5 27.Ne3 g6 28.
Ra2 Ra8 29.Qc2 Kg7 30.Be4 Bxe4 31.Qxe4 Nf6 32.Qh4 Rd7 33.Rad2 Rad8 34.Rd3 
a6 35.Qg5 Ne4 36.Qh4 Nf6 37.Rb3 Qc7 38.d5 Qe5 39.Rxb6 exd5 40.Nxd5 Nxd5 
41.cxd5 Rxd5 42.Qxd8 Rxd8 43.Rxd8 Qe1+ 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.18"]
[Round "4"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "E08"]
[EventDate "1966.04.11"]
[PlyCount "87"]

1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 Be7 5.O-O O-O 6.d4 c6 7.b3 b6 8.Bb2 Bb7 9.
Nc3 Nbd7 10.Qc2 Rc8 11.Rad1 b5 12.c5 b4 13.Na4 Ba6 14.Ne1 Bb5 15.Nd3 a5 
16.a3 bxa3 17.Bxa3 Rb8 18.Rb1 Re8 19.Nc3 Ba6 20.Rfd1 Bf8 21.e4 dxe4 22.
Nxe4 Bxd3 23.Qxd3 Nd5 24.Rdc1 N7f6 25.Nd6 Bxd6 26.cxd6 Qd7 27.Qa6 Rec8 28.
Qxa5 Ne8 29.Qc5 Rb5 30.Qc4 Rbb8 31.Qc5 Rb5 32.Qc4 h6 33.Rc2 Rbb8 34.Rbc1 
Nxd6 35.Bxd6 Qxd6 36.Bxd5 exd5 37.Qa4 Rb6 38.Rc5 Qe6 39.b4 Rcb8 40.Rxc6 
Rxc6 41.Qxc6 Qxc6 42.Rxc6 Rxb4 43.Kf1 Rxd4 44.Ke2 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.20"]
[Round "5"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "B14"]
[EventDate "1966.04.11"]
[PlyCount "158"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 g6 6.Qb3 Bg7 7.cxd5 O-O 8.g3 
Na6 9.Bg2 Qb6 10.Qxb6 axb6 11.Nge2 Nb4 12.O-O Rd8 13.d6 Rxd6 14.Bf4 Rd7 
15.Rfd1 Nbd5 16.Be5 Bh6 17.a3 e6 18.Nxd5 Nxd5 19.Rd3 Bg5 20.Bxd5 exd5 21.
h4 Bd8 22.Rc1 Re7 23.Nf4 Be6 24.Rdc3 Bd7 25.Nxd5 Re6 26.Bc7 Kg7 27.Bxd8 
Rxd8 28.Ne3 b5 29.d5 Rb6 30.Nc2 h6 31.Nb4 g5 32.hxg5 hxg5 33.Kg2 Rf6 34.
Re3 Rh8 35.Nd3 Rd6 36.Ne5 Bh3+ 37.Kf3 Rxd5 38.Rc7 Be6 39.Rxb7 Rc5 40.Ra7 
Bd5+ 41.Kg4 Rc2 42.Kxg5 Rxf2 43.Nd3 Rf3 44.Rae7 Rxe3 45.Rxe3 f6+ 46.Kf4 
Kf7 47.Nb4 Bc4 48.Rc3 Rh2 49.b3 Be6 50.Nd3 Ra2 51.Rc7+ Kg6 52.Nc5 Bf7 53.
Rb7 Rxa3 54.Rxb5 Ra1 55.Ne4 Rf1+ 56.Ke3 Re1+ 57.Kf3 Rf1+ 58.Ke2 Rb1 59.Nd2
Rg1 60.Kf2 Rc1 61.b4 Rc2 62.Ke3 Rc3+ 63.Kf4 Rd3 64.Nf3 Bd5 65.Nh4+ Kf7 66.
Rb8 Rd4+ 67.Ke3 Re4+ 68.Kf2 Ke7 69.Ng6+ Kd7 70.Nf4 Bc6 71.Nd3 Kc7 72.Rf8 
Bb5 73.Nf4 Kd7 74.Rf7+ Ke8 75.Rb7 Rxb4 76.Nd5 Rb2+ 77.Ke3 Rb3+ 78.Kf4 Bc4 
79.Nxf6+ Kf8 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.22"]
[Round "6"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "D41"]
[EventDate "1966.04.11"]
[PlyCount "30"]

1.c4 e6 2.d4 Nf6 3.Nf3 d5 4.Nc3 c5 5.cxd5 Nxd5 6.g3 Nc6 7.Bg2 Nxc3 8.bxc3 
cxd4 9.cxd4 Bb4+ 10.Bd2 Be7 11.O-O O-O 12.Rb1 Nxd4 13.Nxd4 Qxd4 14.Qc2 Qc5
15.Qxc5 Bxc5 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.25"]
[Round "7"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "0-1"]
[ECO "D03"]
[EventDate "1966.04.11"]
[PlyCount "86"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 d5 4.Nbd2 Be7 5.e3 Nbd7 6.Bd3 c5 7.c3 b6 8.O-O Bb7
9.Ne5 Nxe5 10.dxe5 Nd7 11.Bf4 Qc7 12.Nf3 h6 13.b4 g5 14.Bg3 h5 15.h4 gxh4 
16.Bf4 O-O-O 17.a4 c4 18.Be2 a6 19.Kh1 Rdg8 20.Rg1 Rg4 21.Qd2 Rhg8 22.a5 
b5 23.Rad1 Bf8 24.Nh2 Nxe5 25.Nxg4 hxg4 26.e4 Bd6 27.Qe3 Nd7 28.Bxd6 Qxd6 
29.Rd4 e5 30.Rd2 f5 31.exd5 f4 32.Qe4 Nf6 33.Qf5+ Kb8 34.f3 Bc8 35.Qb1 g3 
36.Re1 h3 37.Bf1 Rh8 38.gxh3 Bxh3 39.Kg1 Bxf1 40.Kxf1 e4 41.Qd1 Ng4 42.
fxg4 f3 43.Rg2 fxg2+ 0-1

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.27"]
[Round "8"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "A33"]
[EventDate "1966.04.11"]
[PlyCount "46"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 Nc6 4.d4 cxd4 5.Nxd4 e6 6.e3 Be7 7.Be2 O-O 8.O-O 
d6 9.b3 a6 10.Bb2 Bd7 11.Qd2 Qc7 12.Rac1 Rac8 13.Rfd1 Qb8 14.Nf3 Rfd8 15.
Bd3 Be8 16.Qe2 d5 17.cxd5 Nxd5 18.Nxd5 Rxd5 19.a3 Rcd8 20.Be4 Rxd1+ 21.
Rxd1 Rxd1+ 22.Qxd1 Qd8 23.Qxd8 Bxd8 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.04.29"]
[Round "9"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "D42"]
[EventDate "1966.04.11"]
[PlyCount "51"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.cxd5 Nxd5 8.Bd3 
Nc6 9.O-O O-O 10.Re1 Bf6 11.Be4 Nce7 12.Qc2 g6 13.Bh6 Bg7 14.Bg5 f6 15.Bd2
Bd7 16.Qb3 Bc6 17.Bxd5 exd5 18.Ne4 Rf7 19.Nc5 Nf5 20.h3 Bf8 21.Ne6 Qd7 22.
Nxf8 Rfxf8 23.Bb4 Rfe8 24.Rxe8+ Rxe8 25.Re1 Rxe1+ 26.Bxe1 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.02"]
[Round "10"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1-0"]
[ECO "E66"]
[EventDate "1966.04.11"]
[PlyCount "59"]

1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Bg2 O-O 5.O-O Nc6 6.Nc3 d6 7.d4 a6 8.d5 Na5 
9.Nd2 c5 10.Qc2 e5 11.b3 Ng4 12.e4 f5 13.exf5 gxf5 14.Nd1 b5 15.f3 e4 16.
Bb2 exf3 17.Bxf3 Bxb2 18.Qxb2 Ne5 19.Be2 f4 20.gxf4 Bh3 21.Ne3 Bxf1 22.
Rxf1 Ng6 23.Bg4 Nxf4 24.Rxf4 Rxf4 25.Be6+ Rf7 26.Ne4 Qh4 27.Nxd6 Qg5+ 28.
Kh1 Ra7 29.Bxf7+ Rxf7 30.Qh8+ 1-0

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.04"]
[Round "11"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "C10"]
[EventDate "1966.04.11"]
[PlyCount "51"]

1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Bg5 Be7 8.
Bd3 c5 9.dxc5 Qa5+ 10.c3 Qxc5 11.Qe2 Bd7 12.Ne5 Bc6 13.h4 Rd8 14.O-O-O Nd7
15.Nxc6 Bxg5+ 16.hxg5 Qxg5+ 17.Kc2 bxc6 18.Rh5 Qf4 19.Be4 Qc7 20.Qc4 c5 
21.Qb5 g6 22.Rh4 O-O 23.Qc6 Qxc6 24.Bxc6 Ne5 25.Rxd8 Rxd8 26.Bb5 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.06"]
[Round "12"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "A42"]
[EventDate "1966.04.11"]
[PlyCount "77"]

1.Nf3 g6 2.c4 Bg7 3.d4 d6 4.Nc3 Nd7 5.e4 e6 6.Be2 b6 7.O-O Bb7 8.Be3 Ne7 
9.Qc2 h6 10.Rad1 O-O 11.d5 e5 12.Qc1 Kh7 13.g3 f5 14.exf5 Nxf5 15.Bd3 Bc8 
16.Kg2 Nf6 17.Ne4 Nh5 18.Bd2 Bd7 19.Kh1 Ne7 20.Nh4 Bh3 21.Rg1 Bd7 22.Be3 
Qe8 23.Rde1 Qf7 24.Qc2 Kh8 25.Nd2 Nf5 26.Nxf5 gxf5 27.g4 e4 28.gxh5 f4 29.
Rxg7 Qxg7 30.Rg1 Qe5 31.Nf3 exd3 32.Nxe5 dxc2 33.Bd4 dxe5 34.Bxe5+ Kh7 35.
Rg7+ Kh8 36.Rf7+ Kg8 37.Rg7+ Kh8 38.Rg6+ Kh7 39.Rg7+ 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.11"]
[Round "13"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1-0"]
[ECO "B19"]
[EventDate "1966.04.11"]
[PlyCount "182"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7
9.Bd3 Bxd3 10.Qxd3 Qc7 11.Bd2 e6 12.Qe2 Ngf6 13.O-O-O O-O-O 14.Ne5 Nxe5 
15.dxe5 Nd7 16.f4 Be7 17.Ne4 Nc5 18.Nc3 f6 19.exf6 Bxf6 20.Qc4 Qb6 21.b4 
Na6 22.Ne4 Nc7 23.Rhe1 Rd4 24.Qb3 Qb5 25.c3 Rxe4 26.Rxe4 Qxh5 27.Qc4 Qf5 
28.Qe2 h5 29.Be1 Re8 30.g3 a5 31.bxa5 Qxa5 32.Qc2 Qf5 33.Ra4 g5 34.fxg5 
Bxg5+ 35.Kb1 Qxc2+ 36.Kxc2 e5 37.Re4 Nd5 38.Bf2 Nf6 39.Ra4 Kc7 40.Bc5 Nd5 
41.Re4 b6 42.Bg1 Bd8 43.Rf1 Nf6 44.Re2 c5 45.Rf5 Kd6 46.a4 Kd5 47.Kd3 Ng4 
48.Rb2 Rh8 49.a5 c4+ 50.Ke2 Ke4 51.Rf7 bxa5 52.Rb8 a4 53.Rc8 Bf6 54.Rxc4+ 
Kf5 55.Ra7 a3 56.Rxa3 Rb8 57.Rb4 Rc8 58.c4 Be7 59.c5 e4 60.Ra7 Bf6 61.Rh7 
Kg6 62.Rd7 Kf5 63.Rd5+ Be5 64.Rb6 e3 65.Kf3 Nf6 66.Rd3 Rxc5 67.Bxe3 Rc2 
68.Rd8 Rc3 69.Ke2 Rc2+ 70.Kd1 Rc3 71.Bf2 Ne4 72.Rf8+ Kg5 73.Rb5 Rd3+ 74.
Ke2 Rd5 75.Rxd5 Nc3+ 76.Kf3 Nxd5 77.Ra8 Kf5 78.Ra5 Ke6 79.Be1 Nf6 80.Rb5 
Nd5 81.Bd2 Bg7 82.Bc1 Be5 83.Bb2 Bc7 84.Rc5 Bd6 85.Rc1 Ne7 86.Re1+ Kf5 87.
Ra1 Nc6 88.Ra6 Be5 89.Rxc6 Bxb2 90.Rc5+ Kg6 91.Kf4 Bg7 1-0

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.13"]
[Round "14"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "A05"]
[EventDate "1966.04.11"]
[PlyCount "113"]

1.Nf3 Nf6 2.g3 b5 3.a4 b4 4.d3 Bb7 5.e4 d6 6.Bg2 Nbd7 7.O-O e6 8.a5 Rb8 9.
Nbd2 Be7 10.Nc4 O-O 11.Re1 a6 12.Bf4 Ba8 13.Qe2 Re8 14.h3 Bf8 15.Ncd2 g6 
16.Bg5 h6 17.Be3 Bg7 18.Kh2 Qe7 19.Ra2 Kh7 20.Ng1 d5 21.f4 e5 22.fxe5 Qxe5
23.d4 Qe6 24.e5 Ne4 25.Raa1 c5 26.Nxe4 dxe4 27.c3 bxc3 28.bxc3 cxd4 29.
cxd4 f6 30.exf6 Nxf6 31.Rab1 Nd5 32.Qd2 Rxb1 33.Rxb1 Qd6 34.Ne2 Qa3 35.Bg1
Qd3 36.Qe1 Bc6 37.Rd1 Qa3 38.Nf4 Nxf4 39.gxf4 Bb5 40.Be3 Bd3 41.h4 Qd6 42.
h5 g5 43.Qg3 Bxd4 44.Bxd4 Qxd4 45.fxg5 Qe5 46.Qxe5 Rxe5 47.gxh6 Rxa5 48.
Kg3 Rg5+ 49.Kf2 a5 50.Ra1 Kxh6 51.Bh1 Rxh5 52.Ke3 Bc2 53.Rc1 Rh3+ 54.Kd4 
a4 55.Bxe4 Bxe4 56.Kxe4 a3 57.Kd4 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.16"]
[Round "15"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "B25"]
[EventDate "1966.04.11"]
[PlyCount "110"]

1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nh3 Nf6 7.O-O Bg4 8.f3 Bxh3 
9.Bxh3 O-O 10.Be3 Ne8 11.Qd2 Nc7 12.Rae1 b6 13.Nd1 d5 14.Qe2 e6 15.f4 f5 
16.Bc1 Rf7 17.Bg2 Qd7 18.Nf2 Rd8 19.c3 b5 20.exd5 exd5 21.Bd2 c4 22.Qf3 
Ne7 23.dxc4 bxc4 24.b3 Nc8 25.bxc4 dxc4 26.Bc1 Qa4 27.Rd1 Rdf8 28.Be3 Nb6 
29.Bc5 Rc8 30.Bb4 Na6 31.Bd6 Qa5 32.g4 Qxc3 33.Qe2 Qf6 34.Rfe1 Rd7 35.Be7 
Rxe7 36.Qxe7 Qxe7 37.Rxe7 Nc5 38.gxf5 c3 39.fxg6 hxg6 40.Re2 Rc7 41.Ne4 
Ne6 42.Nxc3 Nd4 43.Re5 Bxe5 44.fxe5 Rxc3 45.Rxd4 Kf7 46.Rd6 Rc5 47.Rf6+ 
Kg7 48.Be4 Rxe5 49.Rxg6+ Kf7 50.Bc2 Re1+ 51.Kf2 Ra1 52.Rc6 Rxa2 53.h4 Nd5 
54.Kf3 Ra3+ 55.Ke4 Rc3 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.18"]
[Round "16"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "B06"]
[EventDate "1966.04.11"]
[PlyCount "97"]

1.d4 g6 2.e4 Bg7 3.Nf3 d6 4.Be2 e6 5.c3 Nd7 6.O-O Ne7 7.Nbd2 b6 8.a4 a6 9.
Re1 Bb7 10.Bd3 O-O 11.Nc4 Qe8 12.Bd2 f6 13.Qe2 Kh8 14.Kh1 Qf7 15.Ng1 e5 
16.dxe5 fxe5 17.f3 Nc5 18.Ne3 Qe8 19.Bc2 a5 20.Nh3 Bc8 21.Nf2 Be6 22.Qd1 
Qf7 23.Ra3 Bd7 24.Nd3 Nxd3 25.Bxd3 Bh6 26.Bc4 Qg7 27.Re2 Ng8 28.Bxg8 Rxg8 
29.Nd5 Bxd2 30.Rxd2 Be6 31.b4 Qf7 32.Qe2 Ra7 33.Ra1 Rf8 34.b5 Raa8 35.Qe3 
Rab8 36.Rf1 Qg7 37.Qd3 Rf7 38.Kg1 Rbf8 39.Ne3 g5 40.Rdf2 h5 41.c4 Qg6 42.
Nd5 Rg8 43.Qe3 Kh7 44.Qd2 Rgg7 45.Qe3 Kg8 46.Rd2 Kh7 47.Rdf2 Rf8 48.Qd2 
Rgf7 49.Qe3 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.20"]
[Round "17"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "B25"]
[EventDate "1966.04.11"]
[PlyCount "58"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 g6 4.g3 Bg7 5.Bg2 Nf6 6.d3 O-O 7.Nh4 Rb8 8.f4 d6 
9.O-O Bd7 10.f5 b5 11.Bg5 b4 12.Nd5 a5 13.Kh1 Ne5 14.Qd2 Bc6 15.Rae1 a4 
16.Qe2 Qd7 17.Bc1 Qb7 18.Ne3 e6 19.fxe6 fxe6 20.Nf3 Nxf3 21.Rxf3 d5 22.
exd5 exd5 23.Ng4 Rbe8 24.Nxf6+ Bxf6 25.Re3 Rxe3 26.Qxe3 Re8 27.Qf2 Rxe1+ 
28.Qxe1 Kf7 29.Qe2 Qe7 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.23"]
[Round "18"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "E12"]
[EventDate "1966.04.11"]
[PlyCount "65"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 Bxf3 6.gxf3 Be7 7.f4 d5 8.f5 exf5
9.Bg2 O-O 10.cxd5 Bd6 11.Qd3 g6 12.Bg5 Re8 13.h4 Nbd7 14.h5 Rb8 15.hxg6 
fxg6 16.O-O-O b5 17.Nxb5 Qc8 18.Rd2 Qb7 19.Nc3 Qb3 20.Qc2 Kg7 21.Bf3 h5 
22.Qxb3 Rxb3 23.Rc2 Reb8 24.e3 Kf7 25.Rd1 Nb6 26.Bxf6 Kxf6 27.Be2 h4 28.f4
Re8 29.Kd2 Rxc3 30.Rxc3 Nxd5 31.Bb5 Nxc3 32.Bxe8 Nxd1 33.Kxd1 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.27"]
[Round "19"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1-0"]
[ECO "C11"]
[EventDate "1966.04.11"]
[PlyCount "135"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.Nf3 c5 6.dxc5 Nc6 7.Bf4 Bxc5 8.Bd3 
f6 9.exf6 Nxf6 10.O-O O-O 11.Ne5 Bd7 12.Nxc6 Bxc6 13.Qe2 Qe7 14.Rae1 Rae8 
15.Bg3 a6 16.a3 Qf7 17.b4 Bd4 18.Be5 Bxe5 19.Qxe5 Nd7 20.Qg3 e5 21.f3 Qf4 
22.Qxf4 Rxf4 23.Rf2 g6 24.Rd2 Nb6 25.Rde2 Nd7 26.Nd1 b5 27.c3 Rf7 28.Bc2 
Kg7 29.Bb3 h5 30.Ne3 Nb6 31.Nc2 Nd7 32.Re3 h4 33.h3 Rf6 34.Nd4 Bb7 35.a4 
Rd8 36.Ne2 bxa4 37.Bxa4 Nb6 38.Bb3 e4 39.Nd4 Kh6 40.Rd1 Rc8 41.fxe4 dxe4 
42.Ne6 Nc4 43.Bxc4 Rxc4 44.Nc5 Rf7 45.Ra1 Kg5 46.Ra5 Kf4 47.Kf2 Bd5 48.Nb3
Ke5+ 49.Ke2 Rc6 50.Nd2 Ke6 51.Nxe4 Bc4+ 52.Kd2 Rd7+ 53.Kc2 Kf7 54.Re5 Kg7 
55.Nd2 Bb5 56.Nf3 Ba4+ 57.Kb2 Rd1 58.R5e4 Rf1 59.Re1 Rxe1 60.Rxe1 Rf6 61.
Re4 g5 62.Nxg5 Rf2+ 63.Ka3 Bc6 64.Rxh4 Bxg2 65.Ne4 Re2 66.Nc5 Bf1 67.Rf4 
Re1 68.h4 1-0

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.05.30"]
[Round "20"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1-0"]
[ECO "E59"]
[EventDate "1966.04.11"]
[PlyCount "81"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 dxc4 10.Bxc4 Qc7 11.Bd3 e5 12.Qc2 Bg4 13.Nxe5 Nxe5 14.dxe5 Qxe5 15.
f3 Bd7 16.a4 Rfe8 17.e4 c4 18.Be2 Be6 19.Be3 Qc7 20.Rab1 Nd7 21.Rb5 b6 22.
Rfb1 Qc6 23.Bd4 f6 24.Qa2 Kh8 25.Bf1 h6 26.h3 Rab8 27.a5 Rb7 28.axb6 axb6 
29.Qf2 Ra8 30.Qb2 Rba7 31.Bxb6 Ra2 32.Qb4 Rc2 33.Bf2 Qc7 34.Qe7 Bxh3 35.
gxh3 Rxf2 36.Kxf2 Qh2+ 37.Bg2 Ne5 38.Rb8+ Rxb8 39.Rxb8+ Kh7 40.Rd8 Ng6 41.
Qe6 1-0

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.06.01"]
[Round "21"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[ECO "C13"]
[EventDate "1966.04.11"]
[PlyCount "78"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 Bxf6 7.c3 Nd7 8.Nf3
O-O 9.Bd3 e5 10.Qc2 exd4 11.cxd4 g6 12.h4 Bg7 13.h5 Nf6 14.hxg6 hxg6 15.
O-O-O Nxe4 16.Bxe4 Bg4 17.Qb3 Qd6 18.Rh4 Qf4+ 19.Qe3 Qxe3+ 20.fxe3 Bxf3 
21.gxf3 c6 22.Kd2 Rfe8 23.b4 Bf6 24.Rg4 Re7 25.Bd3 Rae8 26.Re1 a6 27.Bc4 
Kg7 28.Rgg1 Rh8 29.Rh1 Rxh1 30.Rxh1 Rd7 31.Bb3 Bd8 32.f4 f5 33.Kd3 a5 34.
bxa5 Bxa5 35.Rc1 Kf6 36.Rc4 Rd8 37.Ke2 Bc7 38.Ra4 g5 39.fxg5+ Kxg5 1/2-1/2

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.06.03"]
[Round "22"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1-0"]
[ECO "A40"]
[EventDate "1966.04.11"]
[PlyCount "70"]

1.d4 b5 2.e4 Bb7 3.f3 a6 4.Be3 e6 5.Nd2 Nf6 6.c3 Be7 7.Bd3 d6 8.a4 c6 9.
Ne2 Nbd7 10.O-O O-O 11.Ng3 Re8 12.axb5 axb5 13.Rxa8 Qxa8 14.Qc2 Bf8 15.b4 
Qb8 16.Nb3 g6 17.Ra1 e5 18.Qf2 d5 19.dxe5 Nxe5 20.Bc2 Bg7 21.Ba7 Qc7 22.
Bb6 Qb8 23.Ba7 Qc7 24.Bb6 Qb8 25.Ba7 Qc8 26.Bd4 h5 27.h3 h4 28.Nf1 dxe4 
29.fxe4 Ned7 30.Nfd2 c5 31.Nxc5 Nxc5 32.bxc5 Bxe4 33.Bb3 Bf5 34.Ra7 Nd7 
35.Nf3 Qb8 1-0

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.06.06"]
[Round "23"]
[White "Spassky, Boris"]
[Black "Petrosian, Tigran"]
[Result "1-0"]
[ECO "C13"]
[EventDate "1966.04.11"]
[PlyCount "62"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 Bxf6 7.Nf3 Bd7 8.
Qd2 Bc6 9.Nxf6+ Qxf6 10.Ne5 O-O 11.O-O-O Nd7 12.Nxc6 bxc6 13.h4 Rab8 14.
Rh3 c5 15.Qg5 cxd4 16.Qxf6 Nxf6 17.Rxd4 Rb7 18.Rb3 Rxb3 19.axb3 Ra8 20.Rc4
Ne8 21.Ra4 Nd6 22.g3 Kf8 23.Bg2 Rc8 24.Rxa7 Ke7 25.Kd2 h6 26.c4 g5 27.hxg5
hxg5 28.Kc3 Kd7 29.b4 Rh8 30.b5 Rh2 31.Bc6+ Kd8 1-0

[Event "World Ch"]
[Site "Moscow URS"]
[Date "1966.06.08"]
[Round "24"]
[White "Petrosian, Tigran"]
[Black "Spassky, Boris"]
[Result "1/2-1/2"]
[ECO "E61"]
[EventDate "1966.04.11"]
[PlyCount "153"]

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.e3 Nbd7 7.Nge2 a6 8.b3 Rb8 
9.a4 a5 10.Ba3 c6 11.O-O Qc7 12.Qd2 Re8 13.Rac1 Ra8 14.Rfd1 Nb8 15.h3 Na6 
16.Kh2 h5 17.f4 Nb4 18.Rf1 e5 19.fxe5 dxe5 20.d5 Rd8 21.e4 Nd7 22.Rb1 Nc5 
23.Na2 Nba6 24.Qe3 Qb6 25.Nec1 Qa7 26.Nd3 Nxd3 27.Qxd3 Re8 28.Rb2 Nc5 29.
Qe3 Nd7 30.Qc1 Qb6 31.Rbf2 f6 32.Rf3 Qd8 33.Nc3 Nf8 34.Qc2 Nh7 35.Rd3 Qc7 
36.Qe2 Bh6 37.h4 Bf8 38.d6 Qf7 39.Bh3 Bxh3 40.Kxh3 Red8 41.c5 Qe6+ 42.Kg2 
Bh6 43.Nd1 Nf8 44.Nb2 Nd7 45.Rdf3 Qg4 46.Qc4+ Kg7 47.Nd3 Re8 48.Rb1 Qe6 
49.Qxe6 Rxe6 50.b4 axb4 51.Rxb4 Ra7 52.Rb2 Re8 53.Rf1 Kf7 54.a5 Ke6 55.Bb4
Be3 56.Re2 Bd4 57.Kh3 Rf8 58.Rc1 Raa8 59.Kg2 Rg8 60.Ne1 g5 61.Nf3 gxh4 62.
Nxh4 Rg4 63.Nf5 Rag8 64.Kh3 R8g5 65.Rb1 Rxe4 66.Rxe4 Rxf5 67.Re2 Rf3 68.
Kg2 Rd3 69.Rd2 Re3 70.Ra2 f5 71.Be1 Nxc5 72.Bf2 Rb3 73.Rxb3 Nxb3 74.Ra3 
Nc5 75.Bxd4 exd4 76.Rf3 d3 77.Kf2 1/2-1/2

