Fortress (chess) - Knight Versus A Rook and Pawn

Knight Versus A Rook and Pawn

Em. Lasker vs. Ed. Lasker
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A surprising draw.

At the great New York 1924 tournament, former world champion Emanuel Lasker was in trouble against his namesake Edward Lasker, but surprised everyone by discovering a new endgame fortress (Lasker 1951:314–15). Despite having only a knight for a rook and pawn, White draws by moving his knight back and forth between b2 and a4. Black's only real winning try is to get his king to c2. However, to do so Black has to move his king so far from the pawn that White can play Ka3-b2 and Nc5xb3, when the rook versus knight ending is an easy draw. The game concluded:

93.Nb2 Ke4 94.Na4 Kd4 95.Nb2 Rf3 96.Na4 Re3 97.Nb2 Ke4 98.Na4 Kf3 99.Ka3! Ke4 If 99...Ke2, 100.Nc5 Kd2 101.Kb2! (101.Nxb3+?? Kc2 and Black wins) and 102.Nxb3 draws. 100.Kb4 Kd4 101.Nb2 Rh3 102.Na4 Kd3 103.Kxb3 Kd4+ ½–½

Read more about this topic:  Fortress (chess)

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    In ceremonies of the horsemen,
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