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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 - Sicilian Defense: Classical Variation, B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Petropolis Interzonal 1973 – Round 14 – Kagan, Shimon – 0-1 – Geller, Efim P – G60

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- 5...Nf6 6.Nc3 Nxd4, 6...Nxd4 7.Qxd4 d6 - Gurgenidze Variation, 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. Nxd4 g6 5. c4 - Sicilian Defense: Accelerated Dragon, Maróczy Bind, B36 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Petropolis Interzonal 1973 – Round 14 – Portisch, Lajos – 1-0 – Reshevsky, Samuel – G58

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- 4...Qxd7 5.c4 - Sokolsky Variation, 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 - Sicilian Defense: Moscow Variation, Main Line, B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ - Sicilian Defense: Moscow Variation, Main Line, SÉRIE B 1.e4 2....
Petropolis Interzonal 1973 – Round 15 – Keres, Paul Petrovich – 1/2-1/2 – Panno, Oscar – G66

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