[Event "Australian open 2019"] [Date "2018.12.31"] [Round "8"] [White "Anup Kumar Siva Sankaran"] [Black "Ruari Coffey"] [Result "0-1"] [WhiteElo "1771"] [BlackElo "1400"] [ECO "D80"] [Opening "Gruenfeld: 4.e3 Bg7"] {If you want to challenge yourself, use the training mode from move 58 onwards and see if you can find a plan to win the game. (R.C)} 1.d4 Nf6 2.c4 g6 3.Nc3 d5 {The gruenfeld defence. I decided to go for an attacking game and just have fun for my last few games. (R.C)} 4.e3 Bg7 5.Nf3 c6 6.Bd3 Nbd7 7.O-O O-O 8.Qe2 Re8 9.b3 e5 10.dxe5 Nxe5 11.Nxe5 Rxe5 12.Bb2 Re8 13.Qc2 {Black's d4, would be very strong (R.C)} Be6 14.Rfd1 Rc8 15.h3 Qa5 {A quaint idea. My idea was to capture the c-pawn and bring my queen to the kingside to help out in an attack. (R.C)} 16.Ne2 dxc4 17.Bxc4 Bxc4 18.Qxc4 Qb5 {White already has an open file. By opening the c-file. black has a pawn majority on the queenside, albeit the b-pawns are doubled. (R.C)} 19.Qxb5 cxb5 20.Rac1 a6 21.Kf1 Rxc1 22.Rxc1 Nd5 23.Bxg7 Kxg7 24.a3 Re7 25.Ke1 f5 {At this move, I was about 17 minutes down. f5 prevents any immediate e4 push as well as allowing the rook to protect the h-pawn (R.C)} 26.Kd2 Rd7 27.Nd4 Kf6 28.g3 Ke7 29.Kd3 Kd6 30.f3 b4?! {When I played this, I thought is was strong but afterwards thought I'd lost a pawn. (R.C)} 31.e4 fxe4+ 32.fxe4 Nc3 33.axb4 Na2 34.Rc4 b5 35.Rc6+ Ke7 {Ke5 would lead to a mate in one. (R.C)} 36.Ke3 Nxb4 37.Rc8 Kf6 38.Rf8+ Ke5 39.Re8+ Kd6 40.e5+ {I missed that the pawn could deliver check, I was expecting Re6+. My only hope was that is was an overextended pawn (R.C)} Kc5 41.Rc8+ Kd5 42.e6 Re7 43.Rd8+ Ke5 44.Rd7 Nd5+ 45.Kd3 Nb4+ 46.Ke2 Kf6 47.Kf3 {That pawn is now overextended (R.C)} Rxd7 48.exd7 Ke7 49.Kf4 h6 {There is no rush to capture the pawn. IT is more important to keep the king out (R.C)} 50.Ke5 Nd3+ 51.Ke4 Nf2+ 52.Kd5 Kxd7 53.h4 Nd3 54.Ne6 Nb4+ 55.Ke5 Ke7 56.Nc5 h5 {It creates a small weakness but it is white to move. Black's play starts now (R.C)} 57.Ne6 a5 58.Nc5 {White offered a draw. Tempting, but black is a pawn up and some very real threats. (R.C)} Na2 {Blacks knight will begin an arduous journey. There are threats to be made; the g3 pawn is weak and the king will aim to exploit that. Only white's king can protect that as there can be forks with the pawn and knight. This means that the knight and 2 pawns will make progress. (R.C)} 59.Kd4 Kf6 60.Ne4+ Kf5 61.Ke3 Kg4 62.Kf2 Nc1 63.Nc5 b4 {Black's position is fine. White to play (R.C)} (63...Nxb3 64.Nxb3 a4 65.Nc5 a3 66.Nb3 {And no progress is to be made. (R.C)}) 64.Kg2 Ne2 {Going after the f-pawn. (R.C)} 65.Ne4 {forced (R.C)} Nd4 {Now the b-pawn (R.C)} 66.Nc5 Nf5 {Again, the f-pawn (R.C)} 67.Ne4 {The knight must move otherwise black is checkmated. (R.C)} Ne3+ 68.Kf2 Nd1+ 69.Kg2 Nc3 {And black is now winning} 70.Nf2+ (70.Nc5 Kf5 71.Kf3 Nb5 72.Kf2 Kg4 73.Kg2 Nd4 74.Kh2 Kf3 {And black should be able to win from here (R.C)} 75.Kh3 {E.g} Ke2 76.g4 Kd2 77.Kg3 Kc2 78.Kf4 Nxb3 79.Na4 Nd2 80.Kg5 hxg4 81.Kxg4 b3 {The pawns are unstoppable. Black can also give up their knight if need be (R.C)}) 70...Kf5 71.Kf3 a4 72.bxa4 b3 73.a5 b2 74.Nd3 b1=Q {#R} 0-1