Groningen Open

Petar Velikov (2475)

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1988.12
1/2 : 1/2

Enno Heyken (2370)

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1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O a6 6.Nc3 Nc6 7.d4 Rb8