[Event "Spielvogel 2018"] [Site "Mechanics Institute"] [Date "2018.02.15"] [Round "4"] [White "Harrison Harrison"] [Black "Bas van Riel"] [Result "0-1"] [WhiteElo "1818"] [BlackElo "1783"] [ECO "A00"] [Opening "Mieses: 1...d5"] 1.d3 d5 2.Nd2 e5 3.e3 c5 4.Qe2 Nc6 5.h3 Bd6 6.b3 Nge7 7.a3 a5 8.Bb2 Bd7 9.O-O-O a4 10.g4 b5 11.f4 b4 12.axb4 a3 13.Ba1 cxb4 14.Ngf3 Qa5 15.Nxe5 a2 16.Nec4 dxc4 17.Nxc4 Qc7 18.Bg2 O-O 19.d4 Ra7 20.Be4 Na5 21.Nxa5 Rxa5 {(BvR) 21. I looked at the pretty move 21...Qc3!!; 22.Bxc3, bxc3; 23.Bxh7, but overlooked 23....Kg8! Black's two (tiny') pawn's on c3 and a2, on their own, would then decide the game. An peculiar situation, indeed...} 22.Rhf1 Qc3 23.Bxh7+ Kxh7 {(BvR) Kh8 would have been better, as it would have preserved black's important a -pawn.} 24.Bxc3 bxc3 25.Qd3+ Kg8 26.Qxc3 a1=Q+ 27.Qxa1 Rxa1+ 28.Kd2 Ra2 {(BvR) An unusual imbalance of three pieces against 5 pawns.} 29.Kd3 Rb8 30.Rb1 Nd5 31.c4 Nb4+ 32.Ke4 Rh2 33.Rf3 g6? {(BvR) Harrison told me afterwards: 33...Re8 would have been checkmate, stupid! I had too many options, overlooking the easy one. But the following little 4-move combination is quite elegant, I believe.} 34.Rg3 f5+ 35.Kf3 Bc6+ 36.d5 Nxd5! 37.gxf5 Nf6+ {(BvR) White resigned, as 38.e4, Bxe4+;39.Ke3, Bc5 is checkmate} {#R} 0-1