CHISWICK, Wrexham and Buenos Aires have been the centres of chess action this week. The first two have seen welcome signs of a rebirth of small, but much-needed international events in Britain.

Neil McDonald looks set to win the 'Burlington's Staunton International' at Burlington's Cafe in Chiswick House Grounds. With 101 2 points and two games still to play, he is likely to overtake Chris Dunworth, who has scored 11 with all games completed.

Several of the players in Chiswick have now moved on to Wales for the Owens Corning - Wrexham Maelor tournament where three grandmasters and four masters are among the ten players in an all-play-all event.

Meanwhile, in Buenos Aires, the heavyweights are in action in a curious event, sponsored by the Dutchman Joop van Oosterom, in tribute to the veteran Russian grandmaster Lev Polugayevsky. Ten of the world's top players are competing in a tournament in which every game must begin with the Sicilian Defence, an opening which has been greatly enriched by the games and analyses of Polugayevsky. After five rounds, Valeri Salov leads with 31 2 points, ahead of Karpov and Judit Polgar on 3, and Anand on 21 2 . The following extraordinary game was played in round two. Black's attack took some time to get going, but once under way even an extra white queen would not have helped. After 37 . . h5] 38. d8=Q+ Kh7, White is helpless.

---------------------------------------------------------------- White: Kamsky ---------------------------------------------------------------- Black: Polgar 1 e4 c5 21 Rad1 Ng8 2 Nf3 e6 22 Na5 f5 3 d4 cxd4 23 c4 f4 4 Nxd4 Nf6 24 c5 f3 5 Nc3 Nc6 25 Bh1 Bxa5 6 Ndb5 d6 26 Qxa5 e4 7 Bf4 e5 27 Rfe1 Nf6 8 Bg5 a6 28 cxd6 Qg4 9 Na3 Be6 29 Rd4 Rbe8 10 Nc4 Rc8 30 Qb4 Qh3 11 Bxf6 Qxf6 31 Rdxe4 Nxe4 12 Nb6 Rb8 32 Rxe4 Qf5 13 Ncd5 Qg6 33 Rxe8 Rxe8 14 Qd3 Be7 34 h4 Re2 15 g3 0-0 35 d7 Qb1+ 16 Bg2 Bd8 36 Kh2 Rxf2+ 17 0-0 Kh8 37 Kh3 h5 18 Nc4 Ne7 38 Qf8+ Kh7 19 Qa3 Bxd5 0-1 (time) 20 exd5 Bc7 ----------------------------------------------------------------