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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation, B84 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 - Sicilian Defense: Scheveningen Variation, Classical Variation, B84 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Nbd7 - Sicilian Defense: Najdorf Variation, Scheveningen Variation, B84 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
La Valetta MLT 1980 – Round 14 – Balashov, Yury – 1-0 – Fedder, Steen – G20

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- 8.O-O O-O — Main Line, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D34a - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 - Tarrasch Defense: Prague Variation, Main Line, D34n - 9.dxc5 Bxc5 10.Bg5 d4 11.Bxf6 Qxf6 12.Nd5 Qd8 13.Nd2 Re8 — Main Line, SÉRIE D
La Valetta MLT 1980 – Round 3 – Seirawan, Yasser – 1-0 – Frey Beckman, Kenneth – G10

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- 5...O-O 6.h3 c5, 7.d5 e6 8.Bd3 Na6 9.O-O Nc7, E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E90 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 - King's Indian Defense: Normal Variation, Rare Defenses, SÉRIE E
La Valetta MLT 1980 – Round 4 – Silva, Fernando – 1/2-1/2 – Gheorghiu, Florin – G11

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- 4.Nc3 Bb7, E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E13 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4.... - Queen's Indian Defense, E13q - 5.Bg5 h6 6.Bh4 Bb4 7.e3 g5 8.Bg3 Ne4 9.Qc2 Bxc3+ 10.bxc3 d6 11.Bd3 f5, SÉRIE E
La Valetta MLT 1980 – Round 5 – Ribli, Zoltan – 1-0 – Seirawan, Yasser – G12

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- 7...Nh5 8.Qd2 f5 — Orthodox, 9.O-O-O Nd7 (not 10.Bd3), E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E87 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 - King's Indian Defense: Sämisch Variation, Closed Variation, SÉRIE E
La Valetta MLT 1980 – Round 8 – Gheorghiu, Florin – 1-0 – Aroni Zapata, Amir Alejandro – G13

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