THE WINTERWOOD TOURNAMENT
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.0-0 Nbd7 9.a4 Be7 10.a5 So far, the game has followed well-established theory, and if Black now castles we have reached one of the main lines in the Najdorf.
10...b5? It may be too early to start mixing it on the queen-side with his king still in the centre.
11.axb6 Qxb6? This is too slow, as it allows White to continue his already superior development.
12.Be3 gaining a tempo
12...Nc5 13.Na4?! [More forceful might have been 13.Nxc5 dxc5 14.Bb5+ Kf8 15.Qe2 Qb7 16.Bxa6 and Black is in great difficulty.]
13...Qb4? Possibly hoping to pick up the e-pawn at some stage, but in reality the Queen is in greater danger of being sucked into the mire.
14.Nbxc5 dxc5 15.c3 Qb7 [Of course, Black could not now take the e-pawn because of 15...Qxe4 16.Bf3 ]
16.Nxc5 Bxc5 17.Bxc5 Nxe4 Black was determined to get it at some point.
18.Bf3 f5 19.Bxe4 Qxe4 20.Qd6 Resigns. Black only had... [20.Qd6 Kf7 21.Qe7+ Kg6 22.Qxe6+ ] 1-0