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- 10.Bd3 b5 — Main Line, 11.Rhe1 Bb7 12.Qg3 — Main Line, B20 - B99 - 1. e4 c5 - Sicilian Defense, B90-B99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 Sicilian, Najdorf, B99 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 - Sicilian Defense: Najdorf Variation, Main Line, B99 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Moskou ch-URS 1973 – Round 1 – Geller, Efim P – 1/2-1/2 – Grigoryan, Karen A. – G40

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- 8.Qxg4 Nxd4, 9.Qd1 Ne6 10.Rc1 Qa5 11.Qd2, B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B39 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 - Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation, B39 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Moskou ch-URS 1973 – Round 1 – Geller, Efim P – 1/2-1/2 – Kuzmin, Gennadiy – G47

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- 7...Nf6 8.O-O Bb4, 9.Na4 O-O, B20 - B99 - 1. e4 c5 - Sicilian Defense, B40 - B49 1. e4 c5 2. Nf3 e6 Sicilian defence, B49 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 - Sicilian Defense: Taimanov Variation, Bastrikov Variation, B49 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Moskou ch-URS 1973 – Round 1 – Geller, Efim P – 1/2-1/2 – Tal, Mikhail – G46

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- 6.a3 Bxc5, 7.Nf3 Nc6, E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E39 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O - Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation, SÉRIE E
Moskou ch-URS 1973 – Round 1 – Grigorian, Kamo – 0-1 – Smyslov, Vladimir – G21

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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E37 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 - Nimzo-Indian Defense: Classical Variation, Noa Variation, SÉRIE E
Moskou ch-URS 1973 – Round 1 – Grigorian, Karen – 1/2-1/2 – Korchnoi, Viktor – G22

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- 6...Qc7 (not 7.Bd3, 7.Nf3), B20 - B99 - 1. e4 c5 - Sicilian Defense, B90-B99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 Sicilian, Najdorf, B93 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 - Sicilian Defense: Najdorf Variation, Amsterdam Variation, B93 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Moskou ch-URS 1973 – Round 1 – Karpov, Aleksandr – 1-0 – Kuzmin, Gennadiy – G35

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- 7.Bg5 a6, 8.Na3 b5 9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 O-O 12.Nc2 Bg5 13.a4, B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 - Sicilian Defense: Open, B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bc5 - Sicilian Defense: Four Knights Variation, Cobra Variation, B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Moskou ch-URS 1973 – Round 1 – Karpov, Aleksandr – 1/2-1/2 – Sveshnikov, Evgeny – G43

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