Chess
By PHILIDOR
BLACK (10 men) WHITE (11 men)
C. MANSFIELD (1st PrIslize°,1 E381 Ajedrea Argentina, 1926) WHITE to play and mate in 2 moves: solution next week. Solution to last week's problem by Larsen: 1 P—K 4! threat 2 Q-Q 5. Main variation IS remarkable changed matel..,PxP erePplaccihn.g; 2setQ-Qmat4e 1 . . P-B 6 ch; 2 Kt-K 4. Unusual and ingenious cross-checker. The Sicilian Defence is one of the most vital of all openings; new lines of play—and revival of those thought to be discredited—are produced with bewildering rapidity. This week's game illustrates one of the latter type; B-Q B 4 in the Sicilian used to be regarded as a sure mark of an opening ignoramus or eccentric—now it is a highly respectable move and in this game is successfully employed by one of the best of the young Swiss players against the veteran Johter. who is old enough to remember the last time it was fashionable. Johner loses through mechani- cal play, i.e. playing in a routine way the moves that are usually good in the Sicilian without considering carefully enough their relevance in this particular variation.
White, E. NIEVERGEET Black, H. JOHNER Opening, Sicilian.
1 P-K 4 P-Q 13 4 16 P-B 51(g) P-K 4
2 K;-K13 3 Kt-o 133 17 B-B 1 P-Q Kt 4
3 P-Q 4 P x 1 18 P-K Kt 4 P-R 3 4 Kt x P Kt-B 3 19 P-K R 4 P-Q 4 (b) 5 Q Kt-113 P-Q 3 20 P-Kt 5 R P x MO,
6 13-Q B 4 (n) P-K 3 21RPxP Kt x P 7 P-Q R 3 (b) B-K 27(e) 22 Kt x Kt P x Kt 8 0-0 0-07 23 Li x P chi K x H 9 11-11 2 40 11 Q -K 2 P-Q R 3 24 Q-R 5 ch K-Kt 1 (i) 10 B-K 3 1.1-Q 2 25 R-R 3 B-11 R-B 1 26 K-R 2 13-0 4 12 Q R-Q 1 -B2 27 Q-R 8 ch K-02
13 P-B 4 (d) Kt x Kt te) 28 P-Kt 6 ch K-K 2
14 R x Kt K R-Q 17(/ ) 29 Q x P ch Resigns (k)
15(a) R-91.03rmerly B-B 3
thought bad, because after P-K 3 tile bishop 'bites on granite'; also on B 4 it is u target for attack on Q B tile. As this game shows, there is another aide to the question. (b) Suggested by Bronstein, this enables White to preserve the bishop for middle game attack.
(c) Routine play. Black should take advantage 01 White's non-developing last move to proceed as fast as possible with his Q side counter, i.e. P-Q R 3, is-0 2 Q-B 2, R-0 B 1 and Q-R 4-Q El 5; his king is safer in the centre. As played White can complete Q side develop- Mani unhindered. Black having wasted two moves.
(d) White has now got an ideal attacking formation. (e) Better Kt-R. 4-13 5. (f) Another inappropriate routine move: the rook is needed in this variation to protect K 13 2.
(g) Whito now conducts a king's side pawn taiga in classic style. counter chance, but White is too fir advanced with his attack for it to be sufficient. (I) Bettor Kt x P at once, as text only opens a file for White to use; but position is lost in any event. (I) 24 .. . K-B 1; 25 Q-R 6 ch, K-B 2; 26 P-Kt 6 K-B 3; 27 Q-R 4 mate. (k) 29 . K-Q 3; 30 Q-13 6 ch, K-Q 2; 21 R-R 7 ch and Black loses the queen—and probably the king as Wou•
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