Bigott, Martin (1777) - Margenberg, Volker (1550) - Cologne Longerich op 7th, Cologne 2010 (5), Cologne, 2010 A05 1.Nf3 Nf6 2.b3 b6 3.Bb2 Bb7 4.d4 e6 5.Nbd2 d5 6.g3 Be7 7.Bg2 Nbd7 8.Ne5 c5 9.e3 Nxe5 10.dxe5 Nd7 11.a4 Qc7 12.f4 a5 13.O-O O-O-O 14.c4 h5 15.h3 ½-½ PGN ChessBites 2025