[Event "?"] [Site "masterchessopen.com USA"] [Round "0"] [White "Peters John A (USA)"] [Black "Grefe John A (USA)"] [Result "0-1"] [WhiteElo "2370"] [BlackElo "2425"] [ECO "B90"] [Opening "Sicilian: Najdorf"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O Be6 9.f4 Qc7 10.a4 Nbd7 11.Kh1 O-O 12.Be3 exf4 13.Rxf4 Ne5 14.a5 Rfe8 15.Bb6 Qc8 16.Nd5 Nxd5 17.exd5 Bf5 18.c4 Bg5 19.Rf1 Be4 20.Ra4 Qh3 21.Bf3 Bxf3 22.Qxf3 Qd7 {#R} 0-1