1.Nf3Nf62.b3g63.Bb2Bg74.g3O-O5.Bg2a56.O-Od57.c4c68.d3Nbd79.cxd5cxd510.Na3a411.b4Re812.Rc1Qb613.Qd2e514.Nc2e415.Nfd4Ne516.Ne3Bd717.Rc5a318.Ba1Qd619.Nb5Bxb520.Rxb5Qd7(Annotations by JJ Lang) Black threatens White's loose rook on b5. Where should White move it?21.Rb6??...This move lets Black trap the rook!21.Rc5was best.b622.Rcc1exd323.exd3h5could be how Black would repel White's rook and prepare some kingside pressure, but after24.h3⩲White should still be slightly for choice.21....d4!22.Nc2...22.Rxf6Bxf6simply leaves Black up an Exchange.22....Nd5The point: ... d5-d4 was a tempo-gaining clearance move for Black's knight to occupy this square.23.Bxd4...White tries to regain a pawn for the Exchange, but this fails tactically. Of course, nothing else was much better.23....Nxb624.Bxb6Nc4Simplest. Black wins a piece, but White can't be faulted for trying to regain some material in an otherwise hopeless position.25.Bh3f526.Qf4Nxb627.dxe4Be528.Qg5Qd829.Qh6Bg70-1 Black wins.0-1