Chess
Problem No. 514 by B. J. de C. Andrade (Woodford)
Black (10)
White (10)
White mates in two moves.
FEN 2Bn4/5pr1/RN3k1P/2Q1N3/7n/2p5/2P1p2q/1KB1b1Rb w - - 0 1
Solution: 1. Ba3 Nc6 2. Qd6#
How not to lose
The new Russian champion, Petrosian, has built up a reputation over the last few years as the hardest man in the world to defeat. The following game from the championship is typical of his strategy; he gains a slight advantage in space and then attacks on both wings. The attack is first concentrated on the queen's side, but when Black makes a bid for counterplay on the opposite flank White's extra command of space enables him to set there first.
Tigran V Petrosian vs Anatoly S Lutikov
USSR Championship (1959), Tbilisi URS, rd 7, Jan-20
King's Indian Defense: Petrosian Variation (E92) 1-0
1. Petrosian's own idea against the King's Indian, which gives Black much less counterplay than the older 8. Castles N-B4; 9. N-Q2 P-QR4; 10. Q-B2 B-R3.
2. The alternative plan is 9. … P-KN4; 10. B-N3 N-R4; 11. Castles N-B5; 12. N-K1 NxBch., 13. QxN but this favours White's knights, which can aim for outposts at KB5, KN4 or (in the case of … P-KB4 PxP) K4.
3. Again the knight outpost theme: If 11. … BxN; 12. PxB N-B2; 13. P-R4, followed by P-B3 and N-B4.
4. A clumsy manoeuvre which loses time. Simpler is 12. … N-B2; 13. N-QB3 B-Q2; followed by … Q-K1 and eventually … P-QN4.
5. This fine move maintains the bishop at KR4 for if 13. … P-N4; 14. B-N3 followed by P-KR4 with a strong attack.
6. Thematic counterplay; but it is ineffective since the black rook has no points of invasion on the ON file.
7. Preventing Black's plan of 20. … PxRP; 21. PxP P-QR4; followed by N-R3 and
N-N5.
8. Overlooking White's break-through: 22. … P-N5 is necessary.
9. In the long run this is decisive: if 24. … PxNP; 25. P-B5 QPxP; 26. P-Q6, and otherwise Black's K4 is seriously weakened.
10. White controls the whole board, and this counterattack is mere desperation.
11. Black's position collapses after 42. … R-N2; 43. RxRch QxR; 44. P-R6 Q-B1; 45. Q-Q3ch or 42. … BxP; 43. NxR KxR; 44. N-K5ch.