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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, B83 - 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 - Sicilian, B83o - 10…exf4 11.Bxf4 - Scheveningen, Modern (1943), SÉRIE B 1.e4 2....
Johannesburg 1981 – Round 2 – Nunn, John D M – 1/2-1/2 – Andersson, Ulf 1949 – G9
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- E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E95 - 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 - King's Indian Defense: Orthodox Variation, E95n - 10.Nxd4 Re8 - King’s Indian (1946), SÉRIE E
Johannesburg 1981 – Round 3 – Andersson, Ulf 1949 – 1-0 – Nunn, John D M – G18
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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, B81 - 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 - Sicilian, B81i - 7…Nc6 8.Bg2 - Scheveningen, Keres (1953), SÉRIE B 1.e4 2....
Johannesburg 1981 – Round 3 – Huebner, Robert – 1/2-1/2 – Andersson, Ulf 1949 – G14
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- D40-D42 – 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 – Queen’s Gambit Declined: Semi-Tarrasch Defense, D42 - 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3 - QGD, D42q - 12.* - Semi-Tarrasch, SÉRIE D
Johannesburg 1981 – Round 3 – Nunn, John D M – 1/2-1/2 – Huebner, Robert – G15
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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, 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 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 - Spanish, C99o - 16.Nbd2 Bd7 - Closed, Chigorin (1945), SÉRIE C
Johannesburg 1981 – Round 4 – Huebner, Robert – 1/2-1/2 – Korchnoi, Viktor – G22
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