[Event "?"] [Site "masterchessopen.com corr."] [Round "0"] [White "Pyhala Antti (FIN)"] [Black "Ahonen Tauno"] [Result "1-0"] [WhiteElo "2305"] [ECO "E20"] [Opening "Nimzo-Indian Defence"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 8.dxc5 f5 9.c4 Qh4+ 10.g3 Qxc4 11.e4 Qc3+ 12.Bd2 Qe5 13.Bd3 fxe4 14.fxe4 O-O 15.Rc1 Nf6 16.Nf3 Qh5 17.e5 Ng4 18.Ng5 h6 19.h3 hxg5 20.Qxg4 Qxg4 21.hxg4 Nd7 22.Bh7+ Kf7 23.O-O+ Ke8 24.Bg6+ Kd8 25.Ba5+ Ke7 26.Bc7 {#r} 1-0