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- 5...Nf6 6.Nc3 d6, B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B36 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, B36a - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 - Sicilian Defense: Accelerated Dragon, Maróczy Bind, B36i - 7.Be2 Nxd4 8.Qxd4 Bg7 (not 9.Be3, 9.Bg5, 9.O-O), SÉRIE B 1.e4 2....
Tallinn 1973 – Round 1 – Keres, Paul – 1/2-1/2 – Pribyl, Jakub – G31

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- 6.Be3 Nc6, B20 - B99 - 1. e4 c5 - Sicilian Defense, B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation, B80a - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 - Sicilian Defense: Scheveningen Variation, B80c - 6...Nc6 (not 7.f3), SÉRIE B 1.e4 2....
Tallinn 1973 – Round 1 – Nei, Iivo – 1/2-1/2 – Polugaevsky, Lev – G29

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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ - Sicilian Defense: Moscow Variation, Main Line, B52a - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 - Sicilian Defense: Moscow Variation, Main Line, B52g - 4...Qxd7 5.c4 - Sokolsky Variation, SÉRIE B 1.e4 2....
Tallinn 1973 – Round 1 – Nei, Iivo – 1/2-1/2 – Spassky, Boris Vasily – G24

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- 5.cxd5 cxd4 - Keres Counterattack, D40-D42 – 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 – Queen’s Gambit Declined: Semi-Tarrasch Defense, D41 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. d4 e6 - Queen's Gambit Declined: Semi-Tarrasch Defense, SÉRIE D
Tallinn 1973 – Round 1 – Polugaevsky, Lev – 1-0 – Keres, Paul – G6

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- 8...Bb7 (not 9.O-O), 8.Bd3 Bb7 — Tartakower, D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D58 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 - Queen's Gambit Declined: Tartakower Defense, SÉRIE D
Tallinn 1973 – Round 1 – Polugaevsky, Lev – 1-0 – Saidy, Anthony – G5

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