Wang, Tianqi(2358)
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Adewumi, Tanitoluwa(2280)
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1.e4Nf62.e5Nd53.c4Nb64.d4d65.f4dxe56.fxe5Nc67.Be3Bf58.Nc3e69.Nf3Be710.Be2O-O11.O-Of612.exf6Bxf613.Qd2Qe714.Rad1Rad815.Qc1Bg616.Kh1e517.d5Nd418.Nxd4exd419.Bxd4Bxd420.Rxd4Na421.Bf3Qe522.Rdd1Nc523.Rfe1Qd624.Qe3Rde825.Qd4Nd326.Rxe8Rxe8White has achieved a strong space advantage in the center against Black's Alekhine's Defense.27.Rf1?!...27.Nb5Qe528.Qxe5Rxe529.Kg1Nxb230.Rd4±would be a nice way to keep the edge into an endgame.27.b3is also logical: the knight has no immediate threat from d3 now that the b-pawn is not en prise.27....c5!Black must kick White's queen from the indirect defense of the b2 pawn before capturing.27...Nxb2?!28.Nb5Qe5(28...Qf6is even worse:29.Qxf6gxf630.Nxc7but the knight on b2 hangs after other moves from Black.)29.Qxe5Rxe530.d6!±secures a better endgame for White:cxd631.Bd5+!±28.Qh4Qe5?!28...Nxb229.Bg4h630.Bd7!Rb831.Be6+Kh732.Qg3!Qxg333.hxg3Nxb2Black has regained the pawn, but now the ...c7-c5 move makes no sense given that White has managed to trade queens off, increasing the value of the passed d-pawn.34.d6Rd835.d7Nd336.Rf5?...What in the puzzle rush?! A very clever idea, but wholly unnecessary.36.Kg1Ne537.Re1!with the point that the d7-pawn is not actually hanging, since the knight would be pinned to a hanging rook.Nf738.Nd5+−36....Bxf537.Bxf5+g638.Bxd3Rxd7The position is objectively equal, but it is much easier to play with two pieces than a rook.39.Nd5Kg740.a4Rd641.Kg1Re642.Kf2Re543.Nc3h544.Nb5a645.Nd6b646.Bc2Kf647.Ne4+Kg748.Nc3Kh649.Be4Re750.Ke3Kg551.Nd5...White has improved his pieces. Black has not, and now the rook is tethered to defense.51....Re652.Kf3Rd653.Nf4...53.Bc2!Re654.Bd3a5(54...Rd6?55.Nf4!with White's king ready to make an entrance, and the rook unable to prevent it via ... Rd6-d4 due to Nf4-e6+.)55.Be4Rd656.Bc2Re657.Bd3and, eventually, Black has to give up the b-pawn:Re1(57...Rd6?58.Nf4!+−)58.Nxb6Ra159.Ke3Kg460.Nd7Rxa461.Nxc5±although the game is far from over.53....Rd2!The rook needed to take the opportunity to activate. White wins the g-pawn, but Black can try to force repetition.54.Bxg6Ra255.Be8Rc256.Bf7Ra257.Be8Rc258.Bf7Ra259.Nd5!...Objectively, the position is still equal, but Tani shows fighting spirit that is rewarded.59....Rxa460.Nxb6Rb461.Nd7Rb7?61...a5!62.Nxc5a4every advancement of the a-pawn increases Black's chances of preserving a draw.63.Ne4+Kf564.Nd6+Ke565.c5Rb1Sure, White keeps the passed c-pawn, but the centralized king, active rook, and outside passer provide far more problems for White than Black's passive play did in the main game.62.Be6Rc763.Ke4a564.Kd3!...The only non-losing move. The a-pawn is now within the king's grasp, and since Black's rook is so docile on c7, there is no way to slow down White's king.64.Kd5??a4-+64....h465.gxh4+Kxh466.g4...White has a clear plan and executes it:66....a467.Kc3a368.Kb3Ra769.Ka2Ra670.Bd5Ra571.Bc6Kxg472.Bb5Kf573.Nxc5...The a3-pawn is blockaded, the c5-pawn is no more, and Black's king is still far away.73....Ke574.Na4...There goes the a-pawn! White is winning.74....Kd475.Kxa3Ra776.Kb4Rh777.Nc5Rh178.Nb3+Ke579.Kc5Rb180.Nd4Rc181.Nc6+Ke682.Nb4Rc383.Kb6Kd684.Na6Rc185.c5+Rxc586.Nxc5...Tani now has 50 moves to show his stuff.86....Kd587.Nb3Kd688.Bc4Ke589.Kc5Ke490.Nd4Ke591.Nc2Ke492.Be2Ke593.Bd3Ke694.Ne3Ke595.Nc4+Ke696.Be4Kf697.Kd5Ke798.Ke5Kf799.Bf5Ke7100.Nd6Kf8101.Kf6Kg8102.Nf7Kf8103.Bh7Ke8104.Ne5Kf8105.Nd7+Ke8106.Ke6Kd8107.Kd6Ke8108.Bg6+Kd8109.Bf7Kc8110.Nc5Kd8111.Nb7+Kc8112.Kc6Kb8113.Kb6Kc8114.Be6+Kb8115.Bh3Ka8116.Nc5Now that Tani has 20 moves left to execute a mate-in-two, Black resigns!1-0