">Nd4+!The last finesse.69...g2??70.Be3=70.Kf6...A necessary concession, giving Black's king a path to defend the e3-square from White's bishop.70.Kf4g2wins, when there is no Bg5-e3, although so does ... Nd4-e6+.70....Kg471.Be3Nc272.Bg1...The bishop will be kicked back on the g1-a7 diagonal before ... Nc2-e3 closes off the service route and Black promotes the g-pawn.72....Ne173.Ba7Nd374.Kg6Nf275.Bb6Kf376.Bc7g277.Bh2Ng478.Bg1Ke279.Kh5Kf1With ... Ng4-f2 coming after any retreating bishop move, White resigned.0-1