Author: Robert Hyatt
Date: 10:28:34 10/12/99
Go up one level in this thread
On October 12, 1999 at 08:47:57, Bernhard Bauer wrote: >Hallo, > > +---+---+---+---+---+---+---+---+ > 8 | | | | | | | *K| | > +---+---+---+---+---+---+---+---+ > 7 | | R | | | | | | | > +---+---+---+---+---+---+---+---+ > 6 | | | | | | | P | *P| > +---+---+---+---+---+---+---+---+ > 5 | | | | *R| *B| *P| | P | > +---+---+---+---+---+---+---+---+ > 4 | | P | | | | B | | | > +---+---+---+---+---+---+---+---+ > 3 | | | | | | | K | | > +---+---+---+---+---+---+---+---+ > 2 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > 1 | | | | | | | | | > +---+---+---+---+---+---+---+---+ > a b c d e f g h >FEN: 6k/1R/6Pp/3rbp1P/1P3B/6K/8/8 w > >this is a position from Nisipeanu vs. Khalifman, Las Vegas, tie-break, game 2. > >Question: which program can solve this position? >IMHO no program can do, but who knows, so I ask. >G. Kasparov calls it a mutual Zugzvang position and in the variant he gives the >white rook is hold in prison. >The best move G. K. gives is Kf3 !! >Of course all the null-move programmers will call it a study and studies never >occur in real games ... >But here it happend. >Kind regards >Bernhard current crafty can't do this in reasonable time. it takes 17 minutes to find the move Kf3 at depth=17: 13-> 12.82 5.07 1. Bxe5 Rxe5 2. Kf4 Rd5 3. Rh7 Rd4+ 4. Kxf5 Rxb4 5. Rxh6 Rb7 6. Ke6 Rc7 7. Ke5 Rd7 <HT> 14 32.66 -- 1. Bxe5 14 33.02 4.86 1. Bxe5 Rxe5 2. Kf4 Rd5 3. Rh7 Rd4+ 4. Kxf5 Rxb4 5. Rxh6 Rb7 6. Ke6 Ra7 7. Ke5 Ra5+ 8. Kd6 Kg7 9. Rh7+ <HT> (4) 14-> 52.80 4.86 1. Bxe5 Rxe5 2. Kf4 Rd5 3. Rh7 Rd4+ 4. Kxf5 Rxb4 5. Rxh6 Rb7 6. Ke6 Ra7 7. Ke5 Ra5+ 8. Kd6 Kg7 9. Rh7+ <HT> (3) 15 1:24 4.86 1. Bxe5 Rxe5 2. Kf4 Rd5 3. Rh7 Rd4+ 4. Kxf5 Rxb4 5. Rxh6 Rb7 6. Ke6 Ra7 7. Ke5 Ra5+ 8. Kd6 Ra6+ 9. Kd5 Ra5+ 10. Kd6 <HT> (2) 15-> 1:50 4.86 1. Bxe5 Rxe5 2. Kf4 Rd5 3. Rh7 Rd4+ 4. Kxf5 Rxb4 5. Rxh6 Rb7 6. Ke6 Ra7 7. Ke5 Ra5+ 8. Kd6 Ra6+ 9. Kd5 Ra5+ 10. Kd6 Ra7 <HT> 16 4:01 4.81 1. Bxe5 Rxe5 2. Kf4 Rd5 3. b5 Rc5 4. b6 Rb5 5. Rb8+ Kg7 6. b7 Rb6 7. Kxf5 Rb5+ 8. Ke6 Re5+ 9. Kd6 Rxh5 10. Rg8+ Kxg8 11. b8=Q+ Kg7 12. Qe8 Rf5 16-> 5:36 4.81 1. Bxe5 Rxe5 2. Kf4 Rd5 3. b5 Rc5 4. b6 Rb5 5. Rb8+ Kg7 6. b7 Rb6 7. Kxf5 Rb5+ 8. Ke6 Re5+ 9. Kd6 Rxh5 10. Rg8+ Kxg8 11. b8=Q+ Kg7 12. Qe8 Rf5 17 11:13 4.91 1. Bxe5 Rxe5 2. Kf4 Rd5 3. b5 Rc5 4. b6 Rb5 5. Rb8+ Kg7 6. b7 Rb6 7. Kxf5 Rb5+ 8. Ke6 Re5+ 9. Kd6 Rxh5 10. Rg8+ Kxg8 11. b8=Q+ Kg7 12. Qe8 Rf5 13. Qe6 17 17:08 5.01 1. Kf3 Bxf4 2. Kxf4 Rd1 3. b5 Rd5 4. b6 Rb5 5. Rb8+ Kg7 6. b7 Rb6 7. Kxf5 Rb5+ 8. Ke6 Re5+ 9. Kd6 Rxh5 10. Kc6 Rh4 11. Rg8+ Kxg8 12. b8=Q+ Kg7 13. Qd6 (3) 17-> 17:08 5.01 1. Kf3 Bxf4 2. Kxf4 Rd1 3. b5 Rd5 4. b6 Rb5 5. Rb8+ Kg7 6. b7 Rb6 7. Kxf5 Rb5+ 8. Ke6 Re5+ 9. Kd6 Rxh5 10. Kc6 Rh4 11. Rg8+ Kxg8 12. b8=Q+ Kg7 13. Qd6 18 19:25 ++ 1. Kf3!!
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