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- D20-D29 1. d4 d5 2. c4 dxc4 Queen's gambit accepted, D23 - 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 - QGA [+0.34], D23p - 4.Qa4+ c6 5.Qxc4 Bf5 6.g3 e6 7.Bg2 Nbd7 8.O-O Be7 9.Nc3 O-O - Mannheim Main Line [+0.10], SÉRIE D
Interpolis 1983 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Huebner, Robert – G39
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- A10-A39 English Opening, A33 - 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 - English [+0.32], A33j - 6.Ndb5 d5 7.Bf4 e5 8.cxd5 exf4 9.dxc6 bxc6 10.Qxd8+ Kxd8 - Symmetrical Two Knights Queenswap [-0.19], SÉRIE A
Interpolis 1983 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Polugaevsky, Lev – G42
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- B20-B99 1. e4 c5 - Sicilian Defense, B40-B49 1. e4 c5 2. Nf3 e6 Sicilian defence, B44 - 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 - Sicilian [+0.44], B44x - 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 Be7 9.Be2 O-O 10.O-O b6 11.Be3 Bd7 - Taimanov Szen Hedgehog [+0.27], SÉRIE B 1.e4 2....
Interpolis 1983 – Round 1 – Karpov, Anatoly – 1-0 – Van der Wiel, John T.H. – G32
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