[Event "B15"] [Site "Cleanchess.com "] [Round "471"] [White "Koltanowski, George"] [Black "NN"] [Result "1-0"] [WhiteElo "2450"] [ECO "B15"] [Opening "Caro-Kann: 4.Nxe4 Nf6"] 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Bd3 Qxd4 6.Nf3 Qd8 7.Qe2 Bf5 8.Nxf6+ gxf6 9.Bxf5 Qa5+ 10.Bd2 Qxf5 11.O-O-O Qe6 12.Qd3 Qxa2 13.Qd8+ Kxd8 14.Ba5+ Kc8 15.Rd8# 1-0