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- A10-A39 English Opening, A30v - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.b3 Nbd7 - Symmetrical Hedgehog [+0.23], A30v - 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6 9.b3 Nbd7 10.Nb5 - Symmetrical Hedgehog [+0.25], SÉRIE A
Amsterdam 1981 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Langeweg, Kick – G22
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