[Event "It (open) \"] [Site "masterchessopen.com Berlin (Germany)"] [Round "2"] [White "Hafner Christian (GER)"] [Black "Siebrecht Sebastian (GER)"] [Result "0-1"] [WhiteElo "2123"] [BlackElo "2370"] [ECO "B43"] [Opening "Sicilian: Kan, 5.Nc3"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 b5 7.O-O Nf6 8.Bg5 Be7 9.Qe2 d6 10.Kh1 Nbd7 11.f4 Bb7 12.Rae1 h6 13.Bh4 g5 14.fxg5 hxg5 15.Bxg5 O-O-O 16.Kg1 Rdg8 17.h4 d5 18.Nf3 Bc5+ 19.Be3 dxe4 20.Bxb5 exf3 21.Bxd7+ Nxd7 {#R} 0-1