A rook on the seventh rank...

3/25/2010 – ... usually is of enormous power. In this endgame, however, its range there is pretty 'short'. White's last move was 40.g5-g6, whereupon Black had to evaluate the consequences of 40...Nxg6 41.Rxd7 Nh4+ 42.Kg3 Nxf3 43.Kxf3 Kf8. What do you think about it? A) good idea, Black traps the rook on d7; B) a return sac leads to equal chances; C) White wins. The solution is here, but first ponder over it with a larger version of the diagram.

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White's last move had been 40.g5-g6, whereupon Black had to evaluate the consequences of 40...Nxg6 41.Rxd7 Nh4+ 42.Kg3 Nxf3 43.Kxf3 Kf8. What do you think about it?

A) good idea, Black traps the rook on d7;
B) a return sac leads to equal chances;
C) White wins.

Solution



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