1. e4, c5; 2. Nf3, d6; 3. d4, cxd4; 4. Nxd4, Nf6; 5. Nc3, a6;
The long-popular Narjdorf Variation of the Sicilian Defense, sharp and complex, with chances for both sides.
6. Be3
A rarely-played line at the time, to get me out of the books.
6...e5; 7. Nf3
More active is 7. Nb3, aiming for an eventual f4. Blocking the f-pawn limits white's options.
7...b5; 8. a3?
White plays too passively for the Sicilian. Better is 8. a4!?
8...Bb7; 9. Bd3?
The bishop on d3 is no better than a pawn. It also blocks White's only semi-open file. Protecting the e-pawn with Nd2, followed by Be2 and an eventual f4 is still be best development strategy. Now black gets the better game.
9...Nbd7; 10. 0-0, Be7; 11. Re1, 0-0; 12. h3, h6; 13. Nd2
The knight should have gone here on move 9.
13...d5!
Having completed his development, Black strikes a decisive blow against the center, opening up the game and seizing the newly opened lines. In general, it's very good for black if he can play d5 in the Sicilian.
14. exd5, Nxd5; 15. Nxd5, Bxd5; 16. b4?
Stopping black's pawns from advancing on the Queenside, but creating a backwards pawn and weaknesses on the half-open C-file.
16...Rb8; 17. Nf1
Threatening 18. Bb5!
17...Be6; 18. Bc1 f5!
The game is positionally won for Black. The central pawn-roller cannot be stopped.
19. Bb2, Bf6; 20.Ng3, Be4; 21. Bxf6, Nf6; 22. Be2, Qc7
The backwards c-pawn is doomed.
23. c3, Rfd8; 24. Qc2? e6!