[Event "It (open)"] [Site "masterchessopen.com – Untergrombach (Germany)"] [Round "5"] [White "Gries Volker (GER)"] [Black "Weller Karl (GER)"] [Result "1-0"] [WhiteElo "2179"] [BlackElo "2036"] [ECO "B53"] [Opening "Sicilian, Chekhover, 4...a6"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qd2 Nf6 7.Nc3 e6 8.Be2 Be7 9.O-O O-O 10.b3 b6 11.Bb2 Bb7 12.Rad1 Qc7 13.h3 Rfd8 14.Qe3 Nd7 15.Kh1 Bf6 16.Nh2 Nb4 17.Ng4 Be7 18.a3 Nc6 19.Qg3 Nf6 20.Nxf6+ Bxf6 21.Nd5 {#r} 1-0