A Benko Masterpiece - Last chance to solve it
dinsdag, 17 november 2009 19:21 |
Bron: Susan Polgar blogspot
White to move and win.
Note: This is long and EXTREMELY difficult, probably one of the most difficult puzzles I have ever posted here. It is NOT a one, two, three, or four move puzzle. Can you solve WITHOUT computer assistance?
So far, no one has solved this correctly, including GMs and IMs :)
Voor de oplossing, druk op lees meer.
Here are some of the lines:
1. Qe5+ Kc1 (1... Kc2 2. Qd6 +-)
2. Rb8 Rc4+ (2...Qa6 3. Qf4+ Kc2 4. Qf2+ Kc1 5. Qe1+ Kc2 6. Qb1+ Kd2 7. Rb2+ Kc3 8. Qc2#)
3. Kd3 Rd4+ 4. Kc3 Qd6 5. Qe3+ Rd2 6. Rb4 f6 (6... f5 7. Ra4 Qc6+ 8. Rc4 Qd5 9. Rc8 Qa5+ 10. Kb3+ Kd1 11. Rc1+ Kxc1 12. Qe1+ +-)
7. Ra4 Qc6+ (7... Qe5+ 8. Qxe5 Rc2+ 9. Kb3 fxe5 10. Rc4 Rxc4 11. Kxc4 Kd2 12. Kd5 e4 13. Kxe4 Ke2 14. Ke5 +-)
8. Rc4 Qd5 9. Qe1+ Rd1 10. Qe2 Rd2 (10... Qe5+ 11. Kb3+ +-)
11. Kb3+ Kb1 12. Qe1+ Rd1 13. Qb4 Qe5 (13... Qd2 14. Qxd2 Rxd2 15. gxf6 Rd8 16. f7 Rf8 17. Rf4 Kc1 18. Kc4 +-)
14. Ka4+ Qb2 15. gxf6 Rd7 16. Qxb2+ Kxb2 17. Rg4 +-
Laatst aangepast (donderdag, 19 november 2009 22:55)