komodo 1.3 beta 1 test available
Moderators: hgm, Rebel, chrisw
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- Full name: Jim Ablett
komodo 1.3 beta 1 test available
Komodo 1.3 beta 1 test by Don Dailey & Larry Kaufman
Windows/Linux 64/32 Intel p.g.o
This is an unoffical beta test version.
What's new
Improved evaluation.
Improved search.
30 ELO stronger. (conservative estimate)
Download:
http://www.mediafire.com/?cb3do6a9i69sqag
Mirror:
http://good.net/_C6znfW9ms
Jim.
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Re: komodo 1.3 beta 1 test available
Please report any bugs to me at: drd@mit.edu
Jim Ablett wrote:
Komodo 1.3 beta 1 test by Don Dailey & Larry Kaufman
Windows/Linux 64/32 Intel p.g.o
This is an unoffical beta test version.
What's new
Improved evaluation.
Improved search.
30 ELO stronger. (conservative estimate)
Download:
http://www.mediafire.com/?cb3do6a9i69sqag
Mirror:
http://good.net/_C6znfW9ms
Jim.
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- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: komodo 1.3 beta 1 test available
much thanks to you, larry, & jim! taking it for a spin now.
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Re: komodo 1.3 beta 1 test available
Thanks, Don and Jim.
Will there be Komodo for Iphone?
Will there be Komodo for Iphone?
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bug alert
seems minor but something odd going on with this position
[D] r1b2bk1/1p1n1Qp1/p2p3p/3P2q1/P1B2R2/8/1PP3PP/R6K b - - 0 18
in mpv the display is
Analysis by Komodo64 1.3b1 JA:
1. -+ (-#1992): 18...Kh7 19.Bd3+ Qf5 20.Qxf5+ g6 21.Qxg6+ Kh8 22.Qh7#
2. +- (4.13): 18...Kh8 19.Re1 b5 20.h4 Qg3 21.Qxf8+ Nxf8 22.Rxf8+ Kh7 23.Bd3+ Qxd3 24.cxd3 Bb7 25.Rxa8 Bxa8 26.Re6 Bxd5 27.Rxd6 Bb7 28.Rb6 Bc8 29.axb5 axb5 30.Rxb5 Kg6 31.Rc5 Bf5 32.d4 Kf6 33.Kh2 g5 34.Rc6+ Kg7 35.hxg5 hxg5 36.b4 Be4 37.b5 Kf7 38.Kg3 Bd5 39.Rd6 Be4 40.b6
seems to be a problem w/ move to mate + priority (obv Kh7 mating shouldn't be listed as best move)
[D] r1b2bk1/1p1n1Qp1/p2p3p/3P2q1/P1B2R2/8/1PP3PP/R6K b - - 0 18
in mpv the display is
Analysis by Komodo64 1.3b1 JA:
1. -+ (-#1992): 18...Kh7 19.Bd3+ Qf5 20.Qxf5+ g6 21.Qxg6+ Kh8 22.Qh7#
2. +- (4.13): 18...Kh8 19.Re1 b5 20.h4 Qg3 21.Qxf8+ Nxf8 22.Rxf8+ Kh7 23.Bd3+ Qxd3 24.cxd3 Bb7 25.Rxa8 Bxa8 26.Re6 Bxd5 27.Rxd6 Bb7 28.Rb6 Bc8 29.axb5 axb5 30.Rxb5 Kg6 31.Rc5 Bf5 32.d4 Kf6 33.Kh2 g5 34.Rc6+ Kg7 35.hxg5 hxg5 36.b4 Be4 37.b5 Kf7 38.Kg3 Bd5 39.Rd6 Be4 40.b6
seems to be a problem w/ move to mate + priority (obv Kh7 mating shouldn't be listed as best move)
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- Full name: Werner Schüle
Re: bug alert
Hi,
I see no bugs till now here under following conditions:
eng-eng
40/20
ponder off
resign off
nunn startpositions
Shredder GUI
Now starting some games with a GUI opening book
I see no bugs till now here under following conditions:
eng-eng
40/20
ponder off
resign off
nunn startpositions
Shredder GUI
Now starting some games with a GUI opening book
Werner
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Re: komodo 1.3 beta 1 test available
I heard that Komodo prune minor promotions with exception of the knight promotion when it is giving a check. Anyways, I didn't know it was pruning at root.SzG wrote:Thank you all for the engine!
It seems it cannot promote to bishop. At least in this position it wants to promote to queen with a score of 0.
[D]8/5k2/4p3/4Pp1p/5P1P/3Rn2K/6p1/8 b - - bm g1=B
Ben-Hur Carlos Langoni Junior
http://sourceforge.net/projects/redqueenchess/
http://sourceforge.net/projects/redqueenchess/
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Re: komodo 1.3 beta 1 test available
Komodo considers all underpromotions at the root I thought too. Perhaps I rigged the generator to ignore everything but the knight, I will have to check.bhlangonijr wrote:I heard that Komodo prune minor promotions with exception of the knight promotion when it is giving a check. Anyways, I didn't know it was pruning at root.SzG wrote:Thank you all for the engine!
It seems it cannot promote to bishop. At least in this position it wants to promote to queen with a score of 0.
[D]8/5k2/4p3/4Pp1p/5P1P/3Rn2K/6p1/8 b - - bm g1=B
But you are right about knight under-promotions in general, they are always considered if they give check and this covers the majority of cases (but not all of them) where it's best to promote to knight.
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Re: komodo 1.3 beta 1 test available
Don, is there any reason for not generating underpromotions all the time?Don wrote:Komodo considers all underpromotions at the root I thought too. Perhaps I rigged the generator to ignore everything but the knight, I will have to check.
But you are right about knight under-promotions in general, they are always considered if they give check and this covers the majority of cases (but not all of them) where it's best to promote to knight.
The performance hit must be absolutely marginal (< 0.1 %), and even if in practical play underpromotions are very rare, people kind of expect that a 2800+ engine handles them correctly.
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Re: komodo 1.3 beta 1 test available
In promotion rich positions looking at several extra moves that are almost certainly not best can slow the program down. Have you found that not to be the case?Houdini wrote:Don, is there any reason for not generating underpromotions all the time?Don wrote:Komodo considers all underpromotions at the root I thought too. Perhaps I rigged the generator to ignore everything but the knight, I will have to check.
But you are right about knight under-promotions in general, they are always considered if they give check and this covers the majority of cases (but not all of them) where it's best to promote to knight.
The performance hit must be absolutely marginal (< 0.1 %), and even if in practical play underpromotions are very rare, people kind of expect that a 2800+ engine handles them correctly.
The total slowdown amortized over all positions is probably very small.
I probably should take another look at this. I think I could at least include under-promotions at deep levels without any substantial impact.
Does Houdini include all underpromotions in the main search as well as in the quies or do you have restrictions?