1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 d6 7.Be2 Nxd4 8.Qxd4 Bg7 9.Bg5 0-0 10.Qd2 Be6 11.0-0 Rc8

Also possible is 11 ... Qa5 12 f3 Rfc8, eliminating White tricks based on Nc3-d5 because a Nd5xe7+ could be answered with ... Kf8. 12.Rad1 Preparing 12 ... Bxc4? 13 Bxc4 Rxc4 14 e5 Ne8 15 Nd5. The straightforward 12 b3 Qa5 13 Rac1 was the alternative. 12...Qa5 13.b3 a6 Black would be comfortable after the precautionary 13 ... Rfe8. Then play might proceed 14 f3 a6 15 Nd5 Qxd2 16 Rxd2 Nxd5 17 exd5 Bd7 with equality. 14.Nd5 Qxd2 15.Nxe7+ Kh8 16.Bxd2 Rce8 17.Bb4 Rxe7 Black seems to have play on the e-file after 17 ... Nxe4,

but with 18 Bf3 Nc3 19 Rd3 Rxe7 20 Bxc3 White will exert strong pressure against the backward d-pawn. The text submits to an unpleasant endgame where White's rook + two pawns is much stronger than Black's two minors. 18.Bxd6 Ree8 19.e5 Ng4 20.Bxf8 Rxf8
21.Bf3 Rb8 22.h3

A nice finesse. 22 Bxb7 would have been met by 22 ... Bxe5. 22...Nxe5 23.Bxb7 a5 24.Bd5 Bxd5 25.Rxd5 Nc6 26.Rfd1 Bf8 27.Rb5 Re8 28.Kf1 Kg8 29.g3 h5 30.Rdd5 Bb4 31.Rd1 Kg7 32.Rb7 Re6 33.Rb6 Nd4

A blunder in a bad position. 34.Rxb4