[Event "It (open)"] [Site "masterchessopen.com Bad Wiessee (Germany)"] [Round "1"] [White "Ketzscher Roland (GER)"] [Black "Alterman Boris (ISR)"] [Result "0-1"] [WhiteElo "2085"] [BlackElo "2615"] [ECO "E47"] [Opening "Nimzo-Indian: 4.e3 O-O 5.Bd3"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3 Qc7 10.Qe2 dxc4 11.Bxc4 e5 12.dxe5 Nxe5 13.Nxe5 Qxe5 14.f4 Qe7 15.f5 Bd7 16.Rf4 Bc6 17.g4 Ne4 18.Bd3 Ng5 19.f6 gxf6 20.Qf1 Rad8 21.e4 c4 22.Bc2 Bxe4 23.Bxe4 Nxe4 24.Qxc4 Ng5 25.Kg2 Rd1 26.Rf1 b5 27.Qxb5 Qe4+ {#R} 0-1