Author: Dieter Buerssner
Date: 14:38:52 05/11/03
Go up one level in this thread
On May 11, 2003 at 13:39:12, Jorge Pichard wrote:
>On May 09, 2003 at 05:34:04, Uri Blass wrote:
>>6R1/8/2P5/3K4/1P1PpP1P/p1p1P1P1/rpPp3N/qnbrkBB1 w - - 0 1
>Using my XP 2800+ I think it found the mate.
>[Event "Shootout (Fritz8, Blitz:30'+3") "]
>
>1. Bh3 Ke2 2. Bg4+ Ke1 3. Bc8 Ke2 4. Ba6+ Ke1 5. Kc4 Ke2 6. Kb3+ Ke1 7. Bc8 Ke2
>8. Bg4+ Ke1 9. Be6 Ke2 10. Bc4+ Ke1 11. Bf7 Ke2 12. Bh5+ Ke1 13. Rg4 Ke2 14.
>Rg5+ Ke1 15. Bf7 Ke2 16. Bc4+ Ke1 17. Be6 Ke2 18. Bg4+ Ke1 19. Bc8 Ke2 20. Ba6+
>Ke1 21. Rb5 Ke2 22. Rc5+ Ke1 {0.00/11 0} 23. Rc4 {(Rg5) #4/15 3} Ke2 {#3/5 0}
>24. Rxc3+ {#3/4 0} Ke1 {#2/4 0} 25. Ng4 {#2/3 0} Nxc3 {#1/2 0} 26. Bf2# {#1/2 0
>} 1-0
Yace can prove, that it is at least a mate in 26 (it will not be able to prove,
that the mate cannot be be faster).
It took me only a minute or so. I used text interface (it would also be possible
to use a GUI). Anybody should be able to reproduce it fast. I started with your
game. To save some typing, save the following as mateprob.inp:
setb 6R1/8/2P5/3K4/1P1PpP1P/p1p1P1P1/rpPp3N/qnbrkBB1 w - - 0 1
force
Bh3
Ke2
Bg4+
Ke1
Bc8
Ke2
Ba6+
Ke1
Kc4
Ke2
Kb3+
Ke1
Bc8
Ke2
Bg4+
Ke1
Be6
Ke2
Bc4+
Ke1
Bf7
Ke2
Bh5+
Ke1
Rg4
Ke2
Rg5+
Ke1
Bf7
Ke2
Bc4+
Ke1
Be6
Ke2
Bg4+
Ke1
Bc8
Ke2
Ba6+
Ke1
Rb5
Ke2
Start yace.exe (without GUI)
type
inp mateprob.inp
ana
Very fast you will see a mate score. Now, just type "undo <ENTER>" about as fast
as you can do ("un" instead of "undo" will be enough). You will come back to the
root position and see a score of Mate in 26. You don't need to type undo fast.
In this position, it just works out typing it fast, because it is very forced.
Regards,
Dieter
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