[Event "Ch Netherlands (juniors) (under 20)"] [Site "masterchessopen.com - Nijmegen (Netherlands)"] [Round "0"] [White "Wemmers"] [Black "Irwin Mark (NED)"] [Result "1/2-1/2"] [BlackElo "2191"] [ECO "A43"] [Opening "Old Benoni: 2.d5 Nf6"] 1.d4 c5 2.d5 Nf6 3.c4 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.e4 Bg7 8.Be2 O-O 9.O-O a6 10.a4 Bg4 11.h3 Bxf3 12.Bxf3 Nbd7 13.Bf4 Qc7 14.a5 Rfe8 15.Qc2 Ne5 16.Be2 Re7 17.Be3 Rae8 18.f4 Nxe4 19.Nxe4 Nd7 20.Bf3 f5 21.Ng5 Rxe3 22.Ne6 Qc8 23.Rac1 Nf8 24.Rfd1 Kh8 25.Nxg7 Kxg7 26.b4 Nd7 27.Qb2+ Kf7 28.bxc5 Nxc5 29.Kh2 Qd8 30.Rxc5 dxc5 31.d6 Qf6 32.Qxb7+ Kg8 33.Qxa6 Qh4 34.Qc4+ Kg7 35.d7 Rb8 36.Rd2 Rd8 37.a6 Qe1 38.Rd1 Qa5 39.Qc1 Ra3 40.Qb2+ Kh6 41.g4 fxg4 42.hxg4 Rxf3 43.g5+ Kh5 44.Qe2 Qc3 45.Rf1 Kg4 46.Kg2 Rxd7 47.Rxf3 Qd2 48.Qxd2 Rxd2+ 49.Rf2 Rd8 50.Rc2 Rc8 51.a7 Ra8 52.Rxc5 Rxa7 53.Rc4 Ra2+ 54.Kg1 Kg3 55.Rc3+ Kxf4 56.Rc7 Ra1+ 57.Kg2 Ra2+ 58.Kg1 Kg3 {#d} 1/2-1/2