[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.09"]
[Round "1"]
[White "Tal, Mikhail"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2635"]
[ECO "E11"]
[EventDate "1976.10.09"]
[PlyCount "35"]

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Nc3 O-O 7.Bg2 d6 8.O-O 
Bxc3 9.Bxc3 e5 10.Qc2 a5 11.Rad1 Re8 12.dxe5 dxe5 13.Ng5 h6 14.Ne4 Nd7 15.
Nd2 Nc5 16.Nb3 Nb4 17.Qb1 Nxb3 18.axb3 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.10"]
[Round "2"]
[White "Portisch, Lajos"]
[Black "Tal, Mikhail"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2615"]
[ECO "A30"]
[EventDate "1976.10.09"]
[PlyCount "69"]

1.Nf3 Nf6 2.c4 b6 3.g3 Bb7 4.Bg2 c5 5.O-O g6 6.Nc3 Bg7 7.d4 cxd4 8.Nxd4 
Bxg2 9.Kxg2 Qc8 10.b3 Qb7+ 11.f3 Nc6 12.Bb2 O-O 13.e4 Rac8 14.Qd2 a6 15.
Rac1 Rfd8 16.Rfd1 Nxd4 17.Qxd4 Ne8 18.Qd2 b5 19.cxb5 axb5 20.Nd5 Rxc1 21.
Rxc1 Bxb2 22.Qxb2 e6 23.Nb4 Rc8 24.Rc3 Rxc3 25.Qxc3 Qa7 26.Qd3 Qc5 27.Qxd7
Qxb4 28.Qxe8+ Kg7 29.Qd7 Qc3 30.Qxb5 Qd2+ 31.Kf1 Qxa2 32.h4 Qb1+ 33.Kg2 
Qc2+ 34.Kh3 Qc3 35.Kg2 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.11"]
[Round "3"]
[White "Petrosian, Tigran"]
[Black "Portisch, Lajos"]
[Result "1-0"]
[WhiteElo "2635"]
[BlackElo "2625"]
[ECO "A46"]
[EventDate "1976.10.09"]
[PlyCount "97"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Bg5 Be7 7.c3 Na6 8.e3 Rb8 
9.Nbd2 O-O 10.a3 Ne4 11.Bxe7 Qxe7 12.Qe2 Nc7 13.Rfd1 Rfd8 14.Ne5 Nxd2 15.
Rxd2 Bxg2 16.Kxg2 Nd5 17.e4 Nf6 18.Ng4 Nxg4 19.Qxg4 d5 20.dxc5 dxe4 21.
Rad1 Rxd2 22.Rxd2 Qxc5 23.Qxe4 Qc7 24.Qd3 h6 25.Qd7 Qc5 26.Rd3 a5 27.Rf3 
Rf8 28.Rf4 e5 29.Re4 Kh8 30.Re3 f6 31.Rd3 Rb8 32.Qd6 Qa7 33.Qc6 Qf7 34.Rd5
Qg6 35.Rxe5 Qd3 36.Rc5 b4 37.cxb4 axb4 38.a4 Qb3 39.Rc2 Qa2 40.Re2 Kh7 41.
h4 b3 42.Qd7 Kh8 43.Re7 Rg8 44.Qd4 Ra8 45.Rb7 Re8 46.Rb5 Rc8 47.Rb4 Rg8 
48.Qc3 Ra8 49.Qf3 1-0

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.13"]
[Round "4"]
[White "Petrosian, Tigran"]
[Black "Tal, Mikhail"]
[Result "1/2-1/2"]
[WhiteElo "2635"]
[BlackElo "2615"]
[ECO "E18"]
[EventDate "1976.10.09"]
[PlyCount "35"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O Be7 6.c4 O-O 7.Nc3 Ne4 8.Nxe4 
Bxe4 9.Ne1 d5 10.cxd5 Bxg2 11.Nxg2 Qxd5 12.Nf4 Qb7 13.Be3 Nd7 14.Rc1 Rfd8 
15.Qc2 c5 16.dxc5 Nxc5 17.Rfd1 Rxd1+ 18.Rxd1 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.14"]
[Round "5"]
[White "Tal, Mikhail"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2615"]
[BlackElo "2625"]
[ECO "B97"]
[EventDate "1976.10.09"]
[PlyCount "80"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Nb3 Qa3 10.Bxf6 gxf6 11.Be2 Nc6 12.O-O Bd7 13.f5 Ne5 14.fxe6 fxe6 
15.Bh5+ Kd8 16.Rab1 Rc8 17.Ne2 Be7 18.Nf4 Kc7 19.Be2 Kb8 20.Na5 b5 21.Nb3 
Bd8 22.Kh1 Bb6 23.Nh5 Rc7 24.Nxf6 Bc8 25.Ng4 Nc4 26.Bxc4 Rxc4 27.Nf6 Qb4 
28.Qd1 Qc3 29.Rc1 h5 30.Rf3 Qe5 31.Qd2 Ka8 32.Rd1 Bc7 33.Na5 d5 34.g3 Bxa5
35.Qxa5 Rxc2 36.Qb6 Qb2 37.Qg1 dxe4 38.Nxe4 Bb7 39.Re3 Rf8 40.a4 Qe5 0-1

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.15"]
[Round "6"]
[White "Portisch, Lajos"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2635"]
[ECO "B06"]
[EventDate "1976.10.09"]
[PlyCount "60"]

1.d4 g6 2.e4 Bg7 3.c3 c6 4.Bd3 d6 5.f4 d5 6.e5 h5 7.Nf3 Nh6 8.Be3 Bf5 9.
Bxf5 Nxf5 10.Bf2 Na6 11.Nbd2 Nc7 12.g3 Qd7 13.Qe2 Ne6 14.O-O-O O-O-O 15.
Kb1 f6 16.Nb3 Bh6 17.Rhe1 Rde8 18.Qc2 b6 19.h3 Bg7 20.Nc1 Nc7 21.Nd3 Nh6 
22.Rh1 Nf7 23.Be3 f5 24.Nh4 Rh6 25.Nf2 Reh8 26.Nf3 e6 27.Rhg1 Bf8 28.g4 
hxg4 29.hxg4 Nd8 30.Qc1 c5 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.17"]
[Round "7"]
[White "Tal, Mikhail"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2625"]
[ECO "C07"]
[EventDate "1976.10.09"]
[PlyCount "40"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3
Nc6 9.Nbxd4 Nxd4 10.Nxd4 Be7 11.b3 O-O 12.Bb2 Qf4 13.Nf3 b6 14.Be5 Qg4 15.
Nd4 Qxd1 16.Raxd1 Bb7 17.Nb5 Bc5 18.Bd6 Bxd6 19.Rxd6 Rfc8 20.Rfd1 Kf8 
1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.18"]
[Round "8"]
[White "Portisch, Lajos"]
[Black "Tal, Mikhail"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2615"]
[ECO "D41"]
[EventDate "1976.10.09"]
[PlyCount "39"]

1.c4 c5 2.Nf3 Nf6 3.Nc3 e6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nc6 7.O-O Be7 8.d4 
O-O 9.Nxd5 exd5 10.dxc5 Bxc5 11.Bg5 f6 12.Bd2 Be6 13.e3 Qb6 14.Bc3 Rfd8 
15.Qd2 a5 16.Nd4 Nxd4 17.exd4 Bb4 18.Rfe1 Bf7 19.Rac1 Rac8 20.Re3 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.19"]
[Round "9"]
[White "Petrosian, Tigran"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2635"]
[BlackElo "2625"]
[ECO "E15"]
[EventDate "1976.10.09"]
[PlyCount "22"]

1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7 7.Bg2 d5 8.cxd5 
exd5 9.O-O O-O 10.Nc3 Bb7 11.Rc1 Nbd7 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.21"]
[Round "10"]
[White "Petrosian, Tigran"]
[Black "Tal, Mikhail"]
[Result "1/2-1/2"]
[WhiteElo "2635"]
[BlackElo "2615"]
[ECO "A26"]
[EventDate "1976.10.09"]
[PlyCount "33"]

1.c4 e5 2.Nc3 d6 3.g3 g6 4.Bg2 Bg7 5.d3 Nc6 6.e4 Nge7 7.Nge2 O-O 8.O-O Be6
9.Nd5 Qd7 10.Be3 f5 11.Qd2 Rae8 12.Rae1 Nc8 13.b3 Nd8 14.exf5 Bxf5 15.Ndc3
c6 16.d4 e4 17.Nf4 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.22"]
[Round "11"]
[White "Tal, Mikhail"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2625"]
[ECO "C95"]
[EventDate "1976.10.09"]
[PlyCount "128"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.Nf1 Bf8 14.Ng3 g6 15.a4 c5 
16.d5 c4 17.Bg5 Rb8 18.Qd2 Nc5 19.axb5 axb5 20.Nh2 Bc8 21.Rf1 Bg7 22.Kh1 
Rf8 23.f3 Qc7 24.f4 exf4 25.Bxf4 Nfd7 26.Ng4 Ne5 27.Nxe5 Bxe5 28.Bxe5 dxe5
29.Qg5 Rb6 30.Ra8 f6 31.Qe3 Ra6 32.Rxa6 Bxa6 33.h4 Kg7 34.h5 Qd6 35.Ra1 
Bc8 36.Ra7+ Bd7 37.Bd1 Qb6 38.Ra1 Qd6 39.Be2 Qc7 40.Bf3 Qd6 41.Bd1 Qc7 42.
Bc2 Qd6 43.Nf1 Rc8 44.Bd1 Rf8 45.Nd2 Rc8 46.Ra5 Rc7 47.Be2 Qb6 48.Ra8 Rc8 
49.Rxc8 Bxc8 50.b3 Na4 51.Qxb6 Nxb6 52.bxc4 bxc4 53.Nxc4 Na4 54.Bd3 gxh5 
55.Nd6 Bg4 56.c4 Nc5 57.Bc2 Kf8 58.Kg1 Ke7 59.Nb5 Be2 60.Na3 h4 61.Kf2 Bg4
62.Nb1 h3 63.gxh3 Bxh3 64.Nc3 Bg4 1/2-1/2

[Event "Interzonal play-off"]
[Site "Varese ITA"]
[Date "1976.10.24"]
[Round "12"]
[White "Portisch, Lajos"]
[Black "Petrosian, Tigran"]
[Result "1/2-1/2"]
[WhiteElo "2625"]
[BlackElo "2635"]
[ECO "E18"]
[EventDate "1976.10.09"]
[PlyCount "26"]

1.Nf3 Nf6 2.c4 e6 3.g3 b6 4.Bg2 Bb7 5.d4 Be7 6.O-O O-O 7.Nc3 Ne4 8.Nxe4 
Bxe4 9.Nh4 Bxg2 10.Nxg2 d6 11.e4 Nc6 12.Rb1 Na5 13.b3 c5 1/2-1/2

