[Event "Koelle 'A'"]
[Site "BCC"]
[Date "2015-11-05"]
[White "Bas van Riel"]
[Black "James Watson"]
[WhiteElo "1815"]
[BlackElo "1651"]
[Result "1-0"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.g3 d6 7.Bg2 g6 8.Bd2 Bg7 9.Bc3 Nbd7 10.h4 Bb7 11.Nh3 Nb6 12.Nf4 Na4 13.O-O Qb6 14.Qb3 O-O 15.Qxb6 Nxb6 16.e4 Na4 17.b3 Nxc3 18.Nxc3 Ng4 19.Rfc1 Bd4 20.Nh3 Rfc8 21.a4 Ba6 22.Ra2 Rab8 23.Nb5 Bxb5 24.axb5 Rxb5 25.Bf3 Ne5 {25...Rxb3 was also possible due to the pin on the f pawn} 26.Be2?! {Bd1 is slightly better, but after ...Nd3 black is well in charge} Rxb3 27.Kg2 Rcb8 28.Rcc2 h6 29.Kf1 Rb1+ 30.Kg2 R8b3 31.Ra8+ Kg7 32.Ra7 Kf6 33.Ra6 Nd3 34.Bxd3 Rxd3 35.Nf4 Rdb3 36.Raa2 R1b2 37.Raxb2 Rxb2 38.Rxb2 Bxb2 39.Kf3 e6 40.Ke2 g5 41.hxg5+ hxg5 42.Nd3 Ba3 43.f4 c4 44.fxg5+ Kxg5 45.Nf4 e5 46.Ng2 Bc5 47.Kf3 c3 48.Ne1 f5 49.exf5 Kxf5 50.g4+ Kg5 51.Nc2 Bb6 52.Ne1 Bg1 53.Nc2 Bh2 54.Ne1 Bf4 55.Nc2 Kh4 56.Ne1 Kh3 57.Nc2 Kh2 {A risky decision, but it does in fact win} 58.Kf2 Bg5 {(...e4!)} 59.Kf3 Kg1 60.Ke4 Kf2 61.Kf5 Bh4 62.g5 Bxg5 63.Kxg5 e4?? {An excellent way to throw away all the hard work to reach a winning position. Had I used a fraction of my remaining 45 minutes I might have seen that white has Kf4 here and the knight and king converge on e3 to win the pawn. of course 63...Ke2 is a win for black} 64.Kf4 Ke2 65.Kxe4 Kd2 66.Nb4 Kc1 67.Kf5 Kb2 68.Ke6 Kb3 69.Nd3 c2 70.Kxd6 {#r}