Chess no. 434

PHILIDOR

Black

White 3 men

9 men

W. A. Shinkman (Gazerta del Popoff,. 1885). White to play and mate in two moves; solution next week. Solution to no. 433 (Havel): Kt - K 6, threat

2 Kt - B 4 ch, P x Kt; 3 R - Q 2 or 2 ... K Q 5; 3 Q-0 3.A 1 . K x Kt; 2 Q - Kt 4 ch, K-Q 4; 3 R-Q 2 or 2 ...K-B 2; 3 R x BP.

B 1 . . . P - K 4; 2 Q - R 5 ch, K x Kt; 3 R X R P. Note how variation B 'echoes' variation A (2 . . . K - B 2 line) with the Q and R operating on the ranks instead of the files, i.e. a rotvion through a right angle. Typical Havel problem.

At the time when a new world championship match is impending it is interesting to look back

London 1834.) I P-Q4 P-Q 4 2 P-QB4 P x P 3 P- K 4 . . . The quieter Kt - K B 3 is better; now Black gets an excellent game. P-K4! 4 P-Q 5 P-KB4 Typical McDonnell but the solid Kt - K B 3 is better.

5 Kt - Q B 3 Kt-KB3 6 B X P B-B4

7 Kt-B3 Q-K 2 8 B-Kt 5 BxPchl? This should give White the advantage but Black's game is somewhat unsatisfactory any- way—too loose.

9 K- B 1?. . He must play 9 K X B. Q - B 4 ch; 10 K - K 1, Q X B; 11 Kt X P, White, De la " Bourdonnais. Black, McDonnell.

Opening, Queen's Gambit Accepted. (Game 50;

Q - R 3; 12P X P, B X P; 13 R - K -13 II

and White's attack is better than Black's. 9...B - Kt 3 10 Q - K 2 P - B 11 R-Q 1 B-Kt 5 12 P-Q 6 P xP 13 Kt - Q 5 Kt x Kt!A very imaginative posi- tional sacrifice.

14BXQ Kt-K6ch15 K-K 1 KxB 16.Q-Q 3 R - Q 1 Naturally Black will not give his Kt on K 6 merely to recover the ex- change. The strength of his position is his grip on the black squares.

17 R-Q 2 Kt -B 3 18 P - Q Kt 3 B - Q R 4 19 P-QR 3? .. . He should play K- B 2 and bring his K R across.

19 . . . Q R - B 120 R- Kt 1? P-QKt4!

21 B x P B X Kt Decisive; now White

must lose heavily in material.

22 P x B Kt -Q 5 23 B-64 KtxPch 24 K - B 2 Kt XQR 25 R x P ch K - B 3 26 R - B 7 ch K - Kt 3 27 R - Q Kt 7 Kt(Q7)x B

28 P x Kt R X P 29 Q- Kt 1 . . . with a last threat of Q - Kt I -eh—which Black ingeniously -meets by a much stronger counter- threat.

29 . . . B - Kt 3 Now 30 Q Kt 1 ch ??, Kt - Kt 5 dble chi and wins queen.

30 K - B 3 R-B 6 31 Q - R 2 Kt-B5ch Even better 31 . . Kt - B 4 chi and now 32 K-Kt4,P-R4 mate or 32 K - K1 2 or K 2,

R - B 7 chi and wins the queen.

32 K- Kt 4 R-KKt1 33 R x B . . Better 33 Resigns; there is no longer any chance whatever.

33 . . . P xR 34K-R4 K-B 3 as Q-K2 R-Kt 3 36 Q-R 5 Kt-K6 and wins. The threat of Kt - Kt 7 mate is fatal.