Author: Enrique Irazoqui
Date: 01:35:59 05/07/03
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On May 06, 2003 at 14:43:06, John Merlino wrote: >On May 06, 2003 at 13:21:50, Enrique Irazoqui wrote: > >>Cortlever published this study in 1986 as a "white to move and win". Is it >>really a mate in 16 as I think? Any program finds 1.Bd4? >> >>[D]k4r2/P4P2/Kp1r2P1/1P6/2B4p/1PbpB3/5P2/8 w - - 0 1 >> >>1.Bd4 Bxd4 2.Bxd3 Re6 3.Bc4 Rd6 4.Be2 Rf6 5.g7 R6xf7 6.gxf8Q+ Rxf8 7.Bc4 Rf5 >>8.Be6 Rxb5 9.b4 Rg5 10.Bd7 Rg6 11.b5 Rf6 12.f4 Bc5 13.Bh3 Rg6 14.Bf5 h3 15.Be4+ >>Rc6 16.Bxc6# 1-0 >> >>Enrique > >According to Chessmaster 9000 (after forcing several moves), it is a Mate in 15 >moves. The difference is after 11...Rf6. White can mate one move earlier with: > >12.Bh3 Rxf2 13.Be6 Rf5 14.Bxf5 h3 15.Be4# > >The ONLY question that I found regarding the whole line is with Black's first >reply. Chessmaster was not able to quickly find a mate for White if Black plays >1...Rd7, leading to this position. Can anybody else find a forced mate for White >here? > >[D]k4r2/P2r1P2/Kp4P1/1P6/2BB3p/1Pbp4/5P2/8 w - - 0 2 > >jm It seems to be a mate in 21, but I'm not sure. 1. Bd4 Rd7 2. Bxc3 Rxa7+ 3. Kxb6 Rb8+ 4. Kc5 Rc8+ 5. Kb4 Rxf7 6. Bxf7 Kb7 7. g7 Rd8 8. g8=Q Rxg8 9. Bxg8 Kb6 10. Kc4 d2 11. Bxd2 h3 12. Be3+ Kc7 13. b6+ Kd7 14. b7 h2 15. b8=Q h1=Q 16. Qa7+ Kc6 17. Qa8+ Kd7 18. Qxh1 Kc7 19. Qh7+ Kc8 20. Be6+ Kd8 21. Qd7# 1-0 Does Chessmaster find 1.Bd4? Enrique
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