Chess

By PHILIDOR No. 130. E. POULSEN elV1agasInet,' June, ISO

BLACK (9 men) WHITE (II men) WHITE to play and mate in two moves: solution Fled week. Solution to last week's problem by Petit'

Kt x K P, threat Kt-Q 5. 1 R (6) x Kt; 2 R-1 K

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I R (I) x Kt; 2 R-Kt 7. 1...P x Kt; 2 R

Note the thematic try 1 . . . R x P? defeated outy. 13bY 1 P x Kt!

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As promised last week, a game from Barden's book If you want to score, cover moves up so that you onl'' see Black's moves after you have decided what Y°11 would do (you are playing Black). No score given for the first twelve moves. Footnotes are based on 1331' den's comments and give his points—if any—allotid for alternative moves.

White, ENE,I Black, KAPU

Opening, Sicilian (Budapest, 1953)

P-Kt 4 (3)

RKRPRI-Q-(BRBB322B0(3121:1(2:11)) :1) Q-Kt 1 (2) B-Kt 2 (2) Q-R I (3)02, ,h) R-R 8 ch! (,)! R x B ch(0

32 K x R B x P ch (1) 33 K-Kt 1 B-B 6 (3) (2 points) (a) P-R 5 (3) (b) 34 Kt-B Q-R 1 (I) , Kt-K 4 (2) 35 Q x B Kt x Q ch ( P x P (1) 36 K-Kt 2 P-Kt 5 (1) Kt-R 4 (1) 37 R-K R 1 Q-Q B 1 (2) Kt Kt 5 (2)(c) 38 R-R 7 ch(f) K-Kt 3 (1) Kt x Kt (1) 39 R 03 1)- Q x Kt (I) K R 1 (k) Kt-K 4 (1) 40 R (1)- K-B 4(1)

41 Resigns (I) (a) Black intends to conduct an attack on both wings at on keeping his king ,in centre—justifiable because of difficult; White in breaking central positions.

(b) If in reply 15 B x P, then 15 R x B; 16 P x R, Kt-g-t 17 P-K B 4, Kt-K 6 with good game. (c) 2 points also for P-Kt 4. (d) Preventing Kt-Kt 5 by threat on Q B P.

(e) I each for Kt-Kt 5 and B-B 4. Text is very strong, allow Black to unite rooks. (1) 1 point for R-R 3. (g) 1 point for Q-K B 1 (to be followed by Q-R 3).

(ir) Decisive: now point of Black B and Q on long dial becomes evident.

ill2 points for Q-Q Kt I also. ) 38 B-Kt 6, Q-Kt 2; 39 B x P, Kt-R 5 d.ch. is also fats i ) 39 R x B, Kt x B; 40 Kt-Kt 5, Q-B 3 ch and wins a (1) 45-50 points, master. 40-44, good British champion 35-39, Good county. 30-34, good club. 25-29, average 15-24, weak club. 8-14, home or occasional plant.. 0-7, beg - Over 50, you're cheating.

I P-K 4 P-Q B 4 2 Kt-K B 3 Kt-Q B 3 3 P-Q 4 P x P 4 Kt x P Q-B 2 5 Kt-Q B 3 P-K 3 6 P-KKt 3 P-QR 3 7 B-Kt 2 Kt-B 3 8 Kt (Q 4)-K 2 B-K 2 10 B-Kt 5 P-Kt 44 11 P-Q R 4 P-Kt 5 12 Kt-Kt I P-R 4 13 Kt-Q 2 14 Kt-Kt 3 15 B-B 4 16 R-K 1 17RPxP 18 13-Q 13 1 19 Kt-B 4 21 Kt-Q 4 22 B-Q B 1 23 P-Kt 3 24 B-K 3 25 R-Q B 1 26 Kt-Kt 5 27 Q-K 2 28 K R-Q 1 29 B-R 7 30 B-Q 4 31 B x

(d)

20 B x Kt