10 AUGUST 1956, Page 21

Chess

By PHILI DOR No. 62. J. C. MORRA (3rd Prize, 13.C.P.S. 1953 ToumeY)

BLACK (10 men) WHITE (8 men)

WHITE to play and mate in two moves: solution next week.

Solution to last week's problem by Ellerman: R-KB5! threat Kt-Kt 3. 1 . . Q x R; 2 Q-Kt 4. 1 .

B x R; 2 Q-Kt 7. 1 . . K x R; 2 Q x P. 1 . . . Kt x R; 2 Q-R 1.

Sacrificial flight- giving key makes this a difficult problem to solve; four queen mates following Black capture are very elegant, with three self-blocks on capturing square.

In the open game the essential thing is to get one's pieces out as quickly as possible—in the close game to get them on to the right squares; as a corollary the characteristic way to lose in open positions is through failure to develop fast enough, and in close positions through playing the wrong developing moves. A further corollary is that the close openings are more difficult to play well or to understand when others play them; anyone can see the difference between developing and not developing—some measure of intelligence is needed to distinguish between good and bad development.

2 Kt-K B 3 P.4(3 3 P-K Kt 3 Kt-K B 3 4 B-Kt 2 P-Q 4 1 P-Q 4 15 Kt(Q 3)-KS P-Kt 57 50-0 B-K 2 P-K B 4 16 Kt-K B-B 3 17 Kt (K 1)-Q 3 P x P (h) 18 Kt-B 51 R-Q 1 19 P-R 5 Kt (3)- P-Q R 3

6 P-B 4 P-B 3 (a) . 20 Q X P

7 Q-13 2 0-0 21 P-B 31(1) Kt-Kt 4? (I) P x P 8 Q Kt-Q 2 (b) K Kt-Q 27(c) 22 P X P Kt x Q P 9 Kt-K 1 Q-K 1 23 P-K 4 B x Kt 10 Kt (Q 2)-B 3 Q-R 4 24P x Kt R-K 1 II Kt-Q 3 P-K Kt 4 (d) 25 P x P K-Kt 2 12 B-Q 2 Kt-R3 26 P-K 7 ch R x P 13 P-Q Kt 41 (e) Kt-132 27 Q R-K 1 Resigns 14 P-Q R 4 Kt-Kt 3 (f) 28 B-B 31 (k)