15 NOVEMBER 1969, Page 30

Chess 465

PHILMOR

F. W. Markwick (2nd Prize, Good Cotnpanior 1915). White to play and mate in two moses solution next week.

Solution to no. 464 (Shedey): Kt-K5, thr Q-B7 . 1. . . B-B5 ; 2 B-Q3. 1 . R-B5 ; 2 B-K4

1 ... Kt-B5; 2 B-B2. 1 P-Q4; 2 R-K6. N the thematic try 1 B-Kt6!? with play 1 ... B-B5 2 Q-B3. 1 . . . R-B5; 2 Kt-Q4. 1 . . . Kt-B5 2 Kt-Q2 but no mate against 1 . . . P-Q4! play after a try like this is called virtual play a the relationship between this and Actual play is feature of the modem two-mover.

Two more books have just been published Batsford's in their new series `Contemporar) C Openings'; these are The Benoni by W. R. Harlst and The Sicilian Flank Game; Najdorf Variation O'Kelly de Galway (28s. each). One cannot gi‘e considered, detailed judgment on highly techn books like these without a lot more work than have devoted to them; what I can say is that t are well presented, professional jobs by aut with every qualification for writing them. Harlot has more ground to cover, and thoroughly cos it; O'Kelly gives fully annotated illustrative go (which Hartston could only have done at the of cutting down the variations given) which are great value in giving a feel for the types of Posa that arise. I look forward with keen anticipation further volumes in the same series. The Collo game is taken from O'Kelly's book.

White, Fischer. Black, Najdorf. Opening, Sid! (Najdorf Variation). (Olympiad, Varna 1962).

' 1 P-K4 P-QB4 2 Kt-K113 p.-Q3 3P-Q4 P x P 4 KtxP Kt-K 5 Kt-QB3 P-QB3 The whole book dewed to this line (the Najdorf Variation), a striking commentary on the depth of modern opening analysis. p-KR3 • The most popular reply is 6 B-KKt5 and other moves are 6 B-Q134, 6 p_B4 and 6 P-KKI3. Playing against the orig- inator of the system for Black, Fischer chooses a less well known line (suggested by the us master Wearer W. Adams); one idea underlying it is shown by the variation 6. . . Kt-B3; 7 P-KKt4, P-K3; 8 P-Kt5.

P-QKt4 Possibly too aggres-

...

sire. 6 . . . P-KKt3 (as played by Fischer himself as Black) is solid and good.

Kt-Q5 B-Kt2 7 .. . Kt< P is met hy 8 Q-133 with masked attack on the QR. Kt , Ktch KtPx Kt 9 P-QB4 PxP Safer 9. . . P-Kt5; 10 B-Q3, Kt-B3.

Il• P B x P? The critical moment. He should play 10 . . . Q-R4ch; and if 11 B-Q2 then II . . . Q-K4 followed by Qx KP. This it seems to me should give Black a good game; after the text he is in great difficulties.

0-0 P-Q4 12 R-K1 P-K4? Far too loosening; he must try P-K3 though he is under severe pressure anyway.

Q- R4ch Kt-Q2 13 . . . Q-Q2?; 14 8-QKt5!

B! P x R 15 Kt-B5 B-B4 Kt-Kt7ch K-K2 17 Kt-B5ch K-K1 Repeating the position of two moves ago-but now castling is no longer possible.

B-K3 B x B 18 . . . B Q5 is a little better.

P 8 Q-Kt3 20 R-QI R-R2 R-Q6 Q-Q1 22 Q-Kt3 Q-B2

22 . . . R-81; 23 Kt-Kt7ch, K-K2; 24 Q-K4! Uhreat R-K6 mate) and wins.

B Pch K-QI 24 B-K6 Resigns 24 . . . Q-Bl ; 25 Q-Kt6ch, and now 25 . . . K-K!; 26 Qx R or 25 . . . R-B2; 26 Bx Kt. Or 24 .. . Q-B4; 25 Q-Kt8ch; or 24 . . . R-Kt2; 25 Q-Q5, Q-B1; 26 R-B6, Q-Kt I ; 27 Kt-Q6 and 28 Kt-B7ch winning.