Chess
Solutions
Raymond Keene
The positions set for analysis in the first Chequers Chess Competition on 18 June were these:
The basic answers 1 had been hoping for were, for Position 1: 1 b4 (threatening b5) 1 cxb4 2 f4 (trapping Black's K) 2 ... Rc6 (If 2 ... Rh7 3 Rxe7 + Rxe7 4 Rdl and Rd4 mate) 3 Rd 1 Rxc4 4 Rc7! forcing mate or winning the R. This was the conclusion of Keene — Mortensen, Arhus 1983. There is, in fact, a dual with 1 f4 Rh7 2 Rhl! Rg7 (2 ... Rxhl 3 Rxe7 mate) 3 Rh6 winning.
Position 2: 1 Kd4 (I Kf4 d4! allows Black complete freedom afterr2 Be5 + Kf7 3 Bxd4 Ke6. In Ogaard — Keene, Gausdal 1983, White played I Kd2 and Black held the draw fairly easily; the variation given is the line I most feared in adjournment analysis). 1 ... K17 2 Bf4 Ke6 3 R181 Rxb4 + 4 Kc3 Rc4 + 5 Kd3 Re4! (only defence to 6 Rf6 + Ke7 7 13d6 + and Rf8 mate) 6 R16+ Ke7 Bd6 + Kd8 8 Rf8 + Re8 9 Bc7+ ! Ke7 10 Rf6 and Black is more or less paralysed, since moving his R to the Q-side always allows Bd6 + and Rf8 mate. White now wins by gradually advancing his K into Black's K-side pawns, via e5 and eventually f6.
Position 3 occurred in Miles — Timman, Linares 1983. In spite of a night's analysis Timman missed this win, which he only
spotted after the game: Rh2 2 Kgl Rhg2 + 3 Kfl (3 Kh 1 Rgb2 4 Rel h5 followed by winning White's g pawn)
3 ... Raf2 + 4 Kel Rh2! 5 Rd5 (nothing to be done) and now 5 ... Ra21 and the move gained with 4 ... Rh2! means that White cannot prevent mate or loss of a R.
The best analyses were those of N. Gill, P.O. Box 82, 126 Bucks Road, Douglas, Isle of Man, and Mrs C. J. Taulbut, 174 Kentwood Hill, Tilehurst, Reading. Che- ques for £100 each will soon be on the way.
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