Chess no. 330

PHILIDOR

S. D. Lei es (2nd Prize, FIDE Tourney, 1962/3),. White to- play and- mate Ur two- moves; solution next week.

Solution, to No. 329 (Rudenko): Q - K B 41, no threat. 1.... ..K2-Q6.; 2 Kt - B 3 (set Kt -13 2).

1 . . . Kt (7) else; 2 R -Q 2 (set R - Q 1). I . . .

Kr- K 4 2' Q'- K 3- (set' Q 5): 1 . . . Kt. (2)

else; 2 Q 6, (set: Q.-Kt 7). Beautiful changed

mate problem!

This week's game won the brilliancy prize in the international junior tournament at Groningen-at the beginning- oft this- year. It is not in fact a very brilliant game—competition for the prize must have been poor—tiut. it is an amusing if scrappy encounter. Neither winner nor loser reached the final pool which was won by Steinberg of the USSR with Whiteley (England) second. It is curious, incidentally, that we do so much better in junior than in senior events—our young players don't seem to develop as much as one would hope.

White, Ligterink (Holland). Black, Zara Disk (Rumania). Opening, Sicilian.

P - K 4 P - Q B 4 2 Kt - K.R 1 P - Q 3 3 P - Q 4 P x P 4 Kt x P Kt - K B 3 5 Kt -Q B 3' 6 B - K 3 P - Q R 3 7 P - B 4 Q'Kt---Q 2 8 Q - B 3 Q- B 2 9 P-K Kt 4 P-Q 10.4.

ill P - Kt 5' P'-Kt. 5 Dramatic though all this may

appear to the uninitiated, it is all part of a well-known book line. 11 P x F x Kt 12 BPxP BxP 13 P - Kt 3 B - Kt 2 14 R - K Kt I B - B 3 15 Q - R 5 . . . This turns out well. but 1 doubt whether it should. B - Q 3 strengthening the centre looks better. 15 . . . Kt - B 4? He should simply play 15. - K - K 21 White said he then intended 16 B'- Q 3 but after 16 .. . Kt.- B 4 be must humbly play 17 Q- B 3 with loss of time. 16 P - Kt 4 Kt x P 17 Kt x P Q - K 2? Black had relied on this to give

him the advantage e.g. 18 Kt - Q 4?. Kt - Q 7 or 18P - B 5, K - Q 21 or 18 Kt - Kt- 54; Kt Sc Kt. How- ever, in view of White's actual reply. Q - B 3 was better.

18 B - Kt 5 chi . . . A fatal blow. 18 . . . PXB 19QxPch Q - Q 2 20 Kt-B7 ch K-K 2 21 Q X B 11 - R 5 ch 22 K - Q 1 Kt - B 3 23 B - Q 4 QR-Q1 24 B x Kt ch K x B 24 . Bot Si 25 Kt.-Q. 5 oh, K-K 3;26 P-B 5 eILK-Kt 27R-K 1 ch,K Sc P4 28 R - B 1 ch and wins a piece. 25 Kt - Q 5 ch K - B 4 Better K - K 3-both players were now short of time. 26 Kt-K 3 eh K-B 3 27 Kt - Q5 ch?. . 27 Q - 4; threatening Kt.- Q 5 mate is immediately decisive. 27 . . . K - 13 4? K - K 31

28 Q - R 6?' . . 28 Kt - K 3,ehl and 294 - Ff 41

28 . Q R - K I? 2/1 . K 31 is still the only chance (29i Q-B 4 Q- 2). though White should: stllEwin.

29 (:),- -Q:3 eb R - K 5 29...K-10 3; 30 Q-K 4 mtft

30 Kt - K 3 ch?. . Better 30Q - 1113 mate.

30 . . . k x P 31 R - ch. . Avoiding 31 R - Kt 4 ch??, Q_ X R ch; 32 Kt X Q. R - K 8-matel

31 . . K'- K 4 32 Q -;(3 5 mate. That really does do it.