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- 4.e3 Bg7, A10-A39 English Opening, A35 - 1. c4 c5 2. Nc3 Nc6 - English Opening: Symmetrical Variation, Two Knights Variation, A35 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 - English Opening: Symmetrical Variation, Four Knights Variation, SÉRIE A
Biel Interzonal 1976 – Round 16 – Huebner, Robert – 1/2-1/2 – Geller, Efim P – G72

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- A10-A39 English Opening, A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 - English Opening: King's English Variation, Closed System, Full Symmetry, A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 - English Opening: King's English Variation, Botvinnik System, A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4.... - English Opening, SÉRIE A
Biel Interzonal 1976 – Round 16 – Smejkal, Jakub – 1/2-1/2 – Smyslov, Vladimir – G73

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- A60-A79 1. d4 Nf6 2. c4 c6 3. d5 e6 Modern Benoni Defense, A64 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8 - Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line, A64 - 1. d4 Nf6 2. c4 e6 3. g3 c5 4.... - Benoni Defense, SÉRIE A
Biel Interzonal 1976 – Round 16 – Tal, Mikhail – 1/2-1/2 – Andersson, Ulf 1949 – G75

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- 7...Nc6 8.dxc5 dxc5 — Exchange, 9.Bf4, E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E65 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c5 7. Nc3 - King's Indian Defense: Fianchetto Variation, Yugoslav Variation, SÉRIE E
Biel Interzonal 1976 – Round 17 – Petrosian, Tigran A. – 1/2-1/2 – Smejkal, Jakub – 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 Defense: Orthodox Variation, Positional Defense, Main Line, 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. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation, 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 Defense: Orthodox Variation, Classical System, Traditional Line, SÉRIE E
Biel Interzonal 1976 – Round 18 – Sanguineti, R. – 1/2-1/2 – Geller, Efim P – G84

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