Continued from page 1

Botvinnik-Portisch, Monte Carlo, 1968

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Be6 6. Nf3 Nc6 7. O-O Nb6 8. d3 Be7 9. a3 a5 10. Be3 O-O 11. Na4 Nxa4 12. Qxa4 Bd5 13. Rfc1 Re8 14. Rc2 Bf8 15. Rac1 Nb8 16. Rxc7 Bc6 17. R1xc6 bxc6 18. Rxf7 h6 19. Rb7 Qc8 20. Qc4+ Kh8 21. Nh4 Qxb7 22. Ng6+ Kh7 23. Be4 Bd6 24. Nxe5 g6 25. Bxg6+ Kg7 26. Bxh6+ 1-0.

Korchnoi-Chernikov, Suzdal-Vladimir Oblast, Russia, August 2011

1. d4 d5 2. c4 e6 3. Nf3 a6 4. Qc2 dxc4 5. Qxc4 b5 6. Qc2 Bb7 7. Bg5 Qc8 8. Nbd2 Nd7 9. Rc1 c5 10. dxc5 Qxc5 11. Qb1 Qb6 12. Be3 Bc5 13. Rxc5 Nxc5 14. b4 Qc7 15. Bxc5 Ne7 16. e3 h6 17. Bd3 O-O 18. O-O Rfd8 19. Bh7+ Kh8 20. Be4 Bd5 21. Qb2 Nc6 22. Rc1 Rac8 23. h3 Rd7 24. Bd4 f6 25. Bxf6 gxf6 26. Qxf6+ Rg7 27. Qxh6+ Kg8 28. Bxd5 exd5 29. Nd4 1-0.

• David R. Sands can be reached at 202/636-3178 or by email at dsands@washingtontimes.com.