L.A. Times Problem No. 153 by J.C.J. Wainwright, Les Tours de Force. White mates in two.
FEN 1R3B2/1NN1RB2/P3q3/p5n1/Pk6/3K4/1P5Q/1n6 w - - 0 1
Key: Q-QB2/Qc2. Black Q had 12 checks.
End game by Dr. Emanuel Lasker. White to play and win. A neat idea by the former world's champion. Worth knowing.
FEN 8/8/k1r1NPK1/8/8/8/8/8 w - - 0 1
Solution: 1. P-B7, RxNch; (see note a) 2. K-N5 (b) R-K4ch (c) 3. K-N4, R-K5ch; 4. K-N3 R-K6ch; 5. K-B2 wins.
(a) If instead of R-B; 2. N-B7ch, R-N2; 3. N-K8 wins.
(b) If K-B5 R-K7 or 8 draws.
(c) If R-K8; 3. P queens, R-N8ch; 4. K-R4, R-R8ch; 5. K-N3, etc. wins. Above position moved one file to the right is a draw; 1. P-N7; RxNch; 2. K any, R-B8 draws.