21 FEBRUARY 1958, Page 27

Chess

By BLACK LllD0 R N o. 141. C. G. WATNEY ('Observer.' 1922) LAac o men) WHITE (12 men)

wurrE to play and mate in two moves: solution next week. Solution to last week's problem by Visserman: P-B 8=Kt, threat Kt-Q 6. 1 . . . Kt-13 2; 2 Q-K 3. 1 ... Kt-B 3; 2 B-B 3. 1 ... Kt-B 5; 2 Q-B 3. 1 . . Kt else; 2 Rx K P. Another fine example of 'correc- tion unpin' (compare No. 138). Random Kt moves allow R xK P; Black 'corrects' for this by Kt-B 2 or Kt-B 3, permitting fresh mates—in turn he prevents these by Kt-B 5, cutting off White Q B, but new yet another mate is possible.