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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E21 - 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 - Nimzo-Indian Defense: Three Knights Variation (1925), E21d - 4…O-O - Three Knights (1925), SÉRIE E
Qatar Masters Open 2015 – Round 9.26 – Ipatov, Alexander – 1-0 – Saduakassova, Dinara – G304
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- D43-D49 Queen's Gambit Declined semi-Slav1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6, D47 - 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 - Semi-Slav, D47t - 12.O-O - Meran, Wade, Main Line (1955), SÉRIE D
Qatar Masters Open 2015 – Round 9.28 – Moiseenko, Alexander – 1-0 – Zhukova, Natalia – G306
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- C90-C99 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 Ruy Lopez, closed, C92 - 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 - Spanish, C92m - 11…* - Closed, Zaitsev, SÉRIE C
Qatar Masters Open 2015 – Round 9.4 – Karjakin, Sergey – 1-0 – Zhang, Zhong – G310
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- C70-C79 Ruy Lopez1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 ....., C72 - 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O - Morphy Defense, Modern Steinitz Defense (1961), C72d - 6.* - Spanish: Modern Steinitz, SÉRIE C
Qatar Masters Open 2015 – Round 9.5 – Sjugirov, Sanan – 1-0 – Mamedyarov, Shakhriyar – G311
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