[Event "Ch Mainz"] [Site "masterchessopen.com – Mainz (Germany)"] [Round "6"] [White "Kalkhof Stefan (GER)"] [Black "Plachetka Jan (SVK)"] [Result "1-0"] [WhiteElo "2191"] [BlackElo "2440"] [ECO "D53"] [Opening "QGD: 4.Bg5 Be7 5.Nf3"] 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 Nbd7 6.Rc1 c6 7.e3 O-O 8.Bd3 dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5 13.Qc2 e4 14.Nd2 Nf6 15.f3 exf3 16.Nxf3 g6 17.Ne5 Bf5 18.Rxf5 gxf5 19.Qxf5 Rad8 20.Rb3 Rd6 21.Bd3 Kg7 22.Qg5+ Kh8 23.Qh6 Ne4 24.Rxb7 Rxh6 25.Rxe7 Ng5 26.g3 Kg8 27.h4 Ne6 28.Ng4 {#r} 1-0