Carl Odegaard (1530) - Kayvan A Sylvan (1320) [B22]

Stanley Knights/Kolty Chess Club, Campbell (1) 1997

B22: Sicilian: 2 c3

1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 d5 5. e5 Qb6 6. Nc3 e6 7. Nf3 last book move 7... f6 8. Bd3 Bb4 9. O-O Bd7 10. Be3 Be7 11. Qd2 Rc8 12. Rac1 Kd8 12... Nb4 13. Be2 Nc6 white has a moderate advantage 13. Rc2 better is 13. Qe2 white has a decisive advantage a pity that White didn't try this 13... Nb4= 14. Rcc1 Nxd3 15. Qxd3 Qxb2 16. Bd2 Qb6 17. Rb1 Qc7 18. Rfc1 Qb8 18... Qc4 19. Qe3 Qa6 20. a4 white is slightly better 19. Nb5 19. Bf4 f5 19... Bc6 19... Ke8 20. Rxc8+ Qxc8 21. Qb3 white has a moderate advantage 20. Ba5+ better is 20. Bf4!? Bf8 21. Bg3 white has a decisive advantage 20... Ke8 21. Bb4 Bxb5 21... Bxb4!? is worthy of consideration 22. Rxb4 Bxb5 23. Qxb5+ Kf7 24. Qxb7+ Qxb7 25. Rxb7+ Ne7 white is slightly better 22. Qxb5+ Kf7 23. Qd7 23. Bd6!? Rxc1+ 24. Rxc1 Bxd6 25. Qd7+ Be7 26. Rc8 Qxc8 27. Qxc8 23... Rd8 24. Qc7 b6 Consolidates a5+c5 25. Qxb8 Rxb8 26. Rc7 a5 26... Ra8 27. Re1 27. Bd6 white has a moderate advantage Ke8?? another bit of territory lost better is 27... b5 28. Rxe7+! white has a decisive advantage Eliminates the defender e7 28. Rxe7+ Nxe7 29. Bxb8 1-0 [Fritz 8 (30s)]

Kayvan A Sylvan (1320) - Rick R Deininger (1222) [C50]

Stanley Knights/Kolty Chess Club, Campbell (2) 1997

C50: Hungarian Defence and Giuoco Pianissimo

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. d3 d6 6. Bg5 h6 7. Bh4 Bg4 8. h3 Bxf3 9. Qxf3 Nd4 10. Qd1 last book move 10... g5 11. Bg3 Qe7 12. Na4 b5 13. Nxc5 dxc5 14. Bb3 O-O-O 14... c4!? 15. dxc4 Nxe4= 15. c3 white has a moderate advantage Nc6 16. Qf3 Nd7 16... Rd6!? 17. Qxf7 Less advisable is 17. Bxf7 Rhf8 black has a decisive advantage 17... Qxf7 18. Bxf7 Nb6 19. O-O-O Rd7 19... better is Kd7 white has a decisive advantage 20. Be6 20. Be6 h5 21. h4 1-0 [Fritz 8 (30s)]

Kayvan A Sylvan (1320) - Michael Huey (1390) [C42]

Stanley Knights/Kolty Chess Club, Campbell (3) 1997

C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 last book move 4. O-O d5 5. Bd3 5. Qe2 dxc4 6. Qxe4 Nc6 black is slightly better 5... Bg4 5... Qf6 6. Re1 Nc6 7. Nc3 Nxc3 8. dxc3 black has a moderate advantage 6. h3 Bxh3?? weakening the position better is 6... Bxf3 7. Qxf3 Ng5 7. gxh3 white has a moderate advantage Qd7 7... Qf6!? 8. Nxe5 white has a decisive advantage Qf5 8... Qxh3 9. Qf3 Qe6 10. Bxe4 dxe4 11. Qxe4 9. Ng4 9. Qg4 Qxe5 10. Qc8+ Ke7 11. Nc3 (11. Qxb7?! Qg5+ 12. Kh1 Qf5 13. Qxc7+ Nd7 white is slightly better ) 9... h5 10. Nh2 10. f3!? Bc5+ 11. Kg2 hxg4 12. fxe4 gxh3+ 13. Kh1 white has a moderate advantage 10... Bd6 Worse is 10... Qxh3 11. Qf3 Qe6 12. Re1 white has a decisive advantage 11. Qf3 better is 11. Qe2 and White can hope to live 11... Nc6 12. Bxe4 dxe4 13. Nc3= 11... Bxh2+ black has a moderate advantage 11... Bxh2+ 12. Kg2 Qxf3+ 13. Kxf3 Nc6 0-1 [Fritz 8 (30s)]