Chess

BY PHIL] DOR

No. 7. R. GEVERS BLACK

WHITE to play and

mate in 2 moves: solution next week.

Solution to last week's problem by Andrade: Kt-Kt 7, threat Q-B 4. I ... Kt-K 5; 2 P-Q 4. I . . . Kt else or R x P; 2 R-K 6.

k 1 R (4)-Q 3; 2 R-B 5. I R (4)-Q 5:

2 Q-K 6. Apologies

WHITE for giving solvers a slight overdose of half-pin problems, but it is a very pleasing type and this is another good example.

This week's game is taken from Reinfeld's Chess by Yourself, in which the author invites readers to match their skill, against the masters by guessing their moves and awards a varying number of points for each guess, with your final rating (ranging from 'master class' to 'fair') depending on your total score. In this game, Black commits a slight inexactitude on his 7th move and makes a serious blunder on his 11th; after this his game is lost, and the interest in the subsequent play lies in the tenacity, imagination and energy with which White conducts a beautiful attack.

White, J. DOBKIN, Black, M. GRINBERG. Opening, Caro Kann.

1 P-K 4 P-0 13 3 14 R 11 ch K-H I 2 P-Q 4 P-0 4 15 P-K Kt 3 Kt-0 4 (J) 3 Kt-Q B 3 P x P 16 B 1'! R-R 4 (g) 4 Kt x P H-B 4 17 Q-R 3 K-Kt 1 5 Kt-Kt 3 B-Kt 3 18 P-R 4 Kt x R 6 Kt-B 3 Kt-0 2 19 Kt x Kt ch K-R I

7 13-0 3 0-13 2 (a) 20 Q-K 13 3! Kt-B 3 (10

8 0-0 K Kt-B 3 21 LI x Kr R-R 2 9 R-K I P-K 3 22 B-Kt S P-I1 3 10 Kt-Kt 5 (b) H x B 23 R. K I R-Q 1 11 Q x B P-K R 3? (c) 24 0-Kt 3 Q x Kt (r) 12R x Pch! B-K 2(d) 25R x Q P x 13 Kt-B 51 P x Kt (e), 26 Q-B 7 Resigns (j) (a) Premature. Better K Kt-II 3, followed by P-K 3. (3) Very strong. As will be seen, Black cannot safety repel knight and on Kt S it prevents 0-0-0 and makes 0-0 dangerous.

(c) Fatal oversight, but even after I I . . . B-K 2; 12 B-Q 2, Black's position is a little uncomfortable.

(d) 12 P Y R?: 13 Q-Kt 6 ch, K-K 2; 14 Q-B 7 ch, and mates or wins the queen.

(e) 13 . . P x R?; 14 Kt x P ch, and wins queen.

(I) If P-K Kt 3; 16 B x P,Px Kt; 17 B x Kt with an easy win. After text, White would have won game if he retired rook; with considerable courage, coupled with accurate calculation. he plays for the attack.

(g) 16... Kt x lit; 17 B x Kt ch, K-Kt I; 18 B-Q 6 and 19 Kt-K 7 ch. Or 16 ... P-13 3; 17 Q-R 3!. P-B 4; 18 R x P, P x B; 19 P r. P, K-K I; 20 R-Q I, winning. Or 16 .. . P-K Kt 3; 17 0-1,1 3. K-Kt I; 18 Kt-R 6 ch, 11 x Kt; 19 B x R, Kt x R; 20 Q x Kr with won game. (I,) Nothing to do. 20 . . . R x B; 21 P x R threat 22 Q-R I or R 5 mate. 20 ... P-Kt 5 or It-R 2; 21 Q x P. (I) Kt-Kt 6 mute is threat. Black might resign here.

(I) Mate is forced. R-K 8 ch is threatened, and if 26 ... 11-K Kt I; then still 11-K 8.