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- D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D60 - 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 - QGD [+0.22], D60d - 7.Qb3 c6 - Orthodox Rauzer Variation [+0.14], SÉRIE D
Biel Interzonal 1976 – Round 16 – Portisch, Lajos – 0-1 – Lombard, Andre – G74
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- A60-A79 1. d4 Nf6 2. c4 c6 3. d5 e6 Modern Benoni Defense, A64 - 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O Nbd7 10.Nd2 a6 11.a4 Re8 - Benoni [+0.39], A64i - 12.h3 Rb8 13.Nc4 Nb6 - Fianchetto [+0.45], SÉRIE A
Biel Interzonal 1976 – Round 16 – Tal, Mikhail – 1/2-1/2 – Andersson, Ulf 1949 – G75
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- E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E65 - 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O - King’s Indian [+0.26], E65h - 7…Nc6 8.dxc5 dxc5 9.Bf4 - Fianchetto Yugoslav Exchange [+0.14], SÉRIE E
Biel Interzonal 1976 – Round 17 – Petrosian, Tigran V. – 1/2-1/2 – Smejkal, Jan – G79
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- E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E96 - 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 c6 9.Bf1 a5 - King’s Indian [+0.66], E96b - 10.h3 - Old Main Line [+0.55], SÉRIE E
Biel Interzonal 1976 – Round 17 – Sosonko, Gennadi – 1/2-1/2 – Tal, Mikhail – G80
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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E54 - 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 - Nimzo-Indian [+0.18], E54l - 8.Bxc4 cxd4 9.exd4 b6 10.Bg5 Bb7 11.Re1 - Main Line Karpov [-0.10], SÉRIE E
Biel Interzonal 1976 – Round 18 – Portisch, Lajos – 1-0 – Sosonko, Gennadi – G81
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- E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E99 - 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5 - King’s Indian [+0.59], E99j - 11.g4 Nf6 12.Nd3 - Mar del Plata Benko Attack [+0.49], SÉRIE E
Biel Interzonal 1976 – Round 18 – Sanguineti, R. – 1/2-1/2 – Geller, Efim P – G84
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