Author: Brian Katz
Date: 14:45:25 12/27/03
Go up one level in this thread
On December 27, 2003 at 08:10:23, Ingo Bauer wrote:
>Hallo
>
>[D]5rk1/p4p1p/6b1/q7/6P1/1P6/Q4p1P/K1R5 b - -
>
>This nice position was reached by YACE against The Baron on ICC. It seems that
>some engines have a problem to find a mate, not to speak of a mate in 8!
>
>
>Engine: ChestUCI Ver.2.8
>by HM / FH
>CPU: AthlonXP2200+
>FEN: 5rk1/p4p1p/6b1/q7/6P1/1P6/Q4p1P/K1R5 b - -
>Suche nach Matt in 12 ... (Hash=512MB)
>8.38 5:21 +M8 33...Qe1 335.3
>Matt in 8 gefunden ! (1 Lösung in 05:44)
>8/08 5:44 +M8 33...Qe1 34.Kb2 Qxc1+ 35.Kxc1 f1Q+ 36.Kb2 Rc8 37.Qa1 Qf6+ 38.Ka2
>Qa6+ 39.Kb2 Rc2+ 40.Kb1 Qf1+ 330.5
>best move: Qa5-e1 time: 5:44.282 min n/s: 330.550 nodes: 113.729.719
>
>
>[Event "ICC 15 10"]
>[Site "Internet Chess Club"]
>[Date "2003.12.27"]
>[Round "-"]
>[White "thebaron"]
>[Black "Sukkubus"]
>[WhiteElo "2374"]
>[BlackElo "2478"]
>[ECO "D45"]
>[Result "0-1"]
>
>1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Qc2
>Bd6 7. Bd2 O-O 8. O-O-O Qe7 9. e4 dxe4 10. Nxe4 Nxe4
>11. Qxe4 e5 12. Bg5 Nf6 13. Qh4 e4 14. Nd2 Bf5 15. g4 Bg6
>16. Be2 c5 17. Bxf6 gxf6 18. Nb3 cxd4 19. Nxd4 Be5 20. Nb3
>b5 21. Nd4 bxc4 22. Nc6 Bxb2+ 23. Kxb2 Qb7+ 24. Ka1 c3
>25. Rb1 Qxc6 26. Rhc1 e3 27. Bb5 Qd5 28. Rb3 Rab8 29. Qxf6
>Rxb5 30. Qxc3 exf2 31. Qb2 Rxb3 32. axb3 Qa5+ 33. Qa2 Qe1
>{White forfeits on time} 0-1
>
>I do not know why The Baron lost on time.
>
>Ingo
Ruffian 1.0.1 found mate in 8 in only 49 seconds! It found mate in 9 in only 8
seconds. When the mate announcement is made it doesn't seem to be counting the
first move. The program is showing mate in #7 but it is really showing 8 moves
for Black. The same for the mate in #9...It was showing mate in 8 but really
showing 9 moves for Black.
What I found particularly interesting was the fact that Fritz 8 could not find
it after approx. 5 minutes (I will let Fritz 8 spend more time on it, as well as
other engines.)
This only goes to show just how strong this Ruffian Engine is. I do not have
Ruffian 2.0, but now I am seriously thinking of getting it. Ruffian runs a lot
faster than Fritz 8. The kN/s were reading in the 1500's as opposed to Fritz 8
in the 1100's.
Fritz 8 finds mate in 12 almost immediately. Then it finds mate in 11 fairly
soon, and then goes back to mate in 12.
Time to test other engines.
By the way I am running an AMD Athlon XP 2600+ 1 Gig DDR SDRAM Hashtables set at
512 MB. I had it at 768, but Ruffian cannot use Hashtables at such a high
setting.
Brian
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