12 NOVEMBER 1983, Page 39

Chess

Guessing game

Raymond Keene

Phis week I introduce a special Chequers .I. Competition which will run for six con- secutive weeks. The prize is £500 and the winner will be announced in the first issue of January 1984. Each week a question will be set, and the first correct answer to reach me in each case will score 10 points, the next 7, then 3, then I. The postmark will decide rather than time of arrival at the Spectator.

At the end of six weeks, points will be totalled and the entrant with most points wins the £500. I realise that this system han- dicaps overseas readers, whose copies of the Spectator reach them somewhat later. For these, there will be several extra prizes, chess computers and book prizes, based on continual excellence of response, rather than a time criterion.,

Here is the first question: the following game was played earlier this month at the TV tournament in Bath. Black missed a great opportunity. What was it? All you have to do to enter is to write the first key move on a postcard and send it to: Chequers Chess Competition No. 5, The Spectator, 56 Doughty Street, London WC1N 2LL.

Karpov — Chandler: Queen's Gambit Declined, Tarrasch.

1 c4 e6 2 Nc3 d5 3 d4 c5 4 e3 Nr6 5 N13 Nc6 6 cxd5 exd5 7 Bb5 Bd6 8 dxc5 Bxc5 9 0-0 0-0 10 b3 Bg4 11 Bh2 Rc8 12 Be2 Bd6 13 Nb5 Bb8 14 Rd Re8 15 Qd3 Ne4 16 Nbd4 Qd6 17 g3 h5 18 Nxc6 bxc6 19 Nh4 Bh3 20 Rfdl Qh6 21 B13 g5 22 Ng2 h4 23 Qe2 Bf5 24 Bd4 hxg3 25 fxg3 Re6 26 Rfl Qh3 27 Nel g4 28 Bg2 Nxg3 29 hxg3 Qxg3 30 Itxf5 Qh4 31 Bxd5 Rh6 32 Qg2 Rc7 33 Nf3 Qh3 34 Rg5 + XIS 35 Bg7 + Ke8 36 Bxh6 Black resigns. Chequers Competition No. 4 White to play.

As I reported last week, this question was perhaps a bit too easy. The key move is 1

Qh6+ and if 1 Kxh6 2 Rh8, or if 1 ... gxh6 2 Ithb7 + mating.

Aly Amin of Chequers Cafee has also generously offered a prize of £1,000 for those attending the game commentary dur- ing the Kasparov-Korchnoi and Smyslov- Ribli matches at the Great Eastern Hotel, starting on 21 November. The format will be along the lines of his well-known 'Guess- ing Game', already an established feature at the Cafe.