Report copyright - Maróczyho struktura - chess.cz...(1) Polugaevsky, Lev – Ivkov, Borislav Belehrad 1969 1.Jf3 Jf6 2.c4 c5 3.Jc3 Jc6 4.d4 cxd4 5.Jxd4 Jxd4 6.Dxd4 g6 7.e4 d6 8.Se3 Sg7 9.f3 0–0 10.Dd2
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