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- 4...Ba6 5.b3 Bb4+ — Main Line, 6.Bd2 Be7 7.Bg2 c6 8.Bc3 d5 9.Ne5 Nfd7 — Main Line, E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 - Queen's Indian Defense: Fianchetto Variation, SÉRIE E
Interpolis 1993 – Round 3.2 – Vyzmanavin, Alexey – 1/2-1/2 – Karpov, Anatoly – G137

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- 5.e3 b5, 6.b3, D10-D19 1. d4 d5 2. c4 c6 Queen's Gambit Slav defence, D15 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 - Slav Defense: Three Knights Variation, D15 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 - Slav Defense: Chebanenko Variation, SÉRIE D
Interpolis 1993 – Round 4 – Cvitan, Ognjen – 0-1 – Bareev, Evgeny – G146

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- 5.Bf4 O-O, 6.e3 c5 7.dxc5 Bxc5 8.a3, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 - Queen's Gambit Declined: Three Knights Variation, D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 - Queen's Gambit Declined: Barmen Variation, SÉRIE D
Interpolis 1993 – Round 4 – Dreev, Aleksey – 1/2-1/2 – Vaganian, Rafael A – G139

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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E56 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense, SÉRIE E
Interpolis 1993 – Round 4 – Jussupow, Artur – 1/2-1/2 – Kamsky, Gata – G142

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- 6.O-O O-O — Main Line, 7.Qc2 a6 8.a4 Bd7 9.Qxc4 Bc6 10.Bg5 a5, E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed, E05 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 - Catalan Opening: Open Defense, Classical Line, SÉRIE E
Interpolis 1993 – Round 4 – Kaidanov, Gregory – 1/2-1/2 – Karpov, Aleksandr – G141

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