Diag. 47

diagram is not in any way a chance win. 4. K-Q3, K-B2; 5. R-QR5, Kt-Kt8; 6. R-R1, and wins.

Diag. 48

As soon as the Knight can obtain the King’s support the game is drawn even when the King is already forced on to the edge of the board.

Position—White: K at K6, R at K5
Black: K at K1, Kt at QR2

1. R-QB5, K-Q1; 2. K-Q6, Kt-B1ch; 3. K-B6, Kt-K2ch, draw. In this case the King must avoid the corners, as the Knight would be bereft of his efficiency.

Position—White: K at KR6, R at KR4
Black: K at KR1, Kt at K2

1. R-K4, Kt-Kt1ch; 2. K-Kt6 and wins.