Author: Uri Blass
Date: 04:10:26 01/26/06
Go up one level in this thread
On January 26, 2006 at 06:00:32, Tord Romstad wrote:
>Hi all,
>
>There is now a new version of my chess engine Glaurung on my home page:
>
>http://www.glaurungchess.com
>
>Compared to the previous version (1.0.1) a bug which would cause the
>program to incorrectly evaluate some positions as draws has been fixed.
>This happened mainly in analysis mode. When playing games, I think the
>bug is triggered so rarely that it has no impact on playing strength.
>Therefore, this new version is mainly of interest for those of you who
>use Glaurung as an analysis tool. Those of you who create rating lists
>are adviced to use Glaurung 1.0.2 in future matches and tournaments, but
>please let it keep the rating of 1.0.1. The difference in strength is
>probably too small to be measured.
>
>For those of you who are not familiar with my engine: Glaurung is a
>moderately strong open source chess program. It is nowhere near the
>commercial programs in strength, but it has a wild and speculative
>style of play which is great fun to watch (in my very subjective
>opinion, of course). Source code and binaries for Windows, Linux
>and Mac OS X are available from the URL above.
>
>Have fun!
>
>Tord
I can only say that based on my experience in analysis I do not find it as
speculative engine.
Here is an example from WBEC when Dragon that is weaker than glaurung is more
speculative
14...Nxc6 is the obvious move for non speculative engine and glaurung choose
that move.
[Event "WBEC11 Promo B"]
[Site "OPTERON-B"]
[Date "2005.12.30"]
[Round "1.1"]
[White "Movei 0.08.336"]
[Black "Dragon 4.7.5"]
[Result "0-1"]
[PlyCount "94"]
[EventDate "2005.??.??"]
[TimeControl "40/2400:0"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8.
f3 h6 9. Bh4 d5 10. cxd5 exd5 11. e3 Re8 12. Nh3 c5 13. Bb5 {-0.31/13} Bc6 {
+0.26/13} 14. Bxc6 {-0.26/14} cxd4 {+0.63/14} 15. Qc2 {+0.65/14} Nxc6 {+0.65/12
} 16. Qxc6 {+0.38/15} g5 {+0.65/13} 17. Bg3 {+0.47/14} Rc8 {+0.72/12} 18. Qb5 {
+0.36/13} Rc5 {+0.65/11} 19. Qa4 {+0.51/13} dxe3 {+0.97/11} 20. Qd4 {+0.00/13}
Rc2 {+0.98/12} 21. O-O {+0.21/13} Rd2 {+0.68/12} 22. Qa4 {+0.43/12} d4 {
+1.66/11} 23. Rab1 {+0.09/13} d3 {+1.70/11} 24. Rfc1 a5 {+1.67/10} 25. Be1 {
+0.19/13} Re2 {+1.53/11} 26. Bc3 Nd5 {+1.72/11} 27. Kh1 {-0.12/12} Nxc3 {
+1.97/11} 28. bxc3 Ra2 {+1.97/11} 29. Qb3 {-0.36/13} Rd2 {+1.80/11} 30. Re1 {
-0.40/13} Re6 {+1.83/11} 31. Ng1 {-0.60/12} Qd6 {+2.23/11} 32. Qc4 {-0.83/12}
Rf2 {+2.58/11} 33. Red1 {-1.27/14} d2 {+2.55/11} 34. Ne2 {-0.85/13} Qc5 {
+2.74/12} 35. Qd3 {-1.25/13} Qxa3 {+2.93/12} 36. Kg1 {-0.88/12} Rxe2 {+3.49/13}
37. Qxe2 {-0.36/12} Qxc3 {+3.69/13} 38. g4 a4 {+4.01/13} 39. Rb5 {-1.18/14} a3
{+4.01/12} 40. Rd5 {-1.15/14} Kg7 {+4.25/13} 41. Rd7 {-1.26/13} b5 {+4.52/12}
42. Ra7 {-1.82/12} b4 {+5.02/11} 43. h4 {-3.31/11} gxh4 {+6.03/11} 44. Kg2 {
-3.68/12} Qc5 {+6.92/11} 45. Ra4 {-4.03/11} b3 {+7.26/10} 46. g5 {-6.70/11}
hxg5 {+10.06/10} 47. Rg1 {-8.61/11} b2 {+11.33/10 Movei->white resign} 0-1
Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.