[Event "It (open) (b)"] [Site "masterchessopen.com Haarlem (Netherlands)"] [Round "3"] [White "Welten Hans (NED)"] [Black "De Waal J"] [Result "1-0"] [WhiteElo "1915"] [ECO "D10"] [Opening "Slav: 3.Nc3"] 1.d4 d5 2.c4 c6 3.Nc3 e6 4.Nf3 Be7 5.e4 dxe4 6.Nxe4 Nf6 7.Bd3 b6 8.O-O O-O 9.Qc2 Nbd7 10.b3 Nxe4 11.Bxe4 Bb7 12.Bxh7+ Kh8 13.Be4 g6 14.Bb2 Kh7 15.Rad1 Qc7 16.Rfe1 Rac8 17.Bxg6+ Kg7 18.d5+ Nf6 19.dxe6 fxe6 20.Ng5 {#r} 1-0