Critte 0.90 released

[Martin Thoresen]

I have no problems getting Critter 0.90 to show tbhits under ChessGUI. I am using the SSE 4.2 version.

Are you sure you have placed the .dll in the same folder as the Critter binary?

Code: Select all

Waiting for Critter 0.90.
Eng02 &#40;Critter 0.90&#41; <- Hash table&#58; 268435456 entries of 16 bytes = 4096 MB total
Eng02 &#40;Critter 0.90&#41; <- Opening book file "book.cbk" not found
Eng02 &#40;Critter 0.90&#41; <- GTB PATHS
Eng02 &#40;Critter 0.90&#41; <- main&#58; C&#58;\EGTB\Gaviota
Eng02 &#40;Critter 0.90&#41; <- GTB initialization
Eng02 &#40;Critter 0.90&#41; <- Compression  Scheme = 4
Eng02 &#40;Critter 0.90&#41; <- Compression Indexes &#40;3-pc&#41; = PASSED
Eng02 &#40;Critter 0.90&#41; <- Compression Indexes &#40;4-pc&#41; = PASSED
Eng02 &#40;Critter 0.90&#41; <- Compression Indexes &#40;5-pc&#41; = PASSED
Eng02 &#40;Critter 0.90&#41; <- GTB Init OK
Eng02 &#40;Critter 0.90&#41; <- readyok

[Christian Goralski]

Hi Ingo,

also no problems here with Critter 0.90 and Gaviota Tablebases support under Shredder GUI!

Looks like a Chessbase GUI Problem, but why I hadn`t any problems with Critter 0.80 and Gaviota Tablebases support under Chessbase GUI?

Sincerely Christian Goralski

4k3/4p3/8/8/8/8/4N3/3BKB2 w - - 0 1

Deep Shredder 12 x64 by Stefan Meyer-Kahlen, www.shredderchess.com
CPU0: GenuineIntel Intel64 Family 6 Model 26 Stepping 5 4206 MHz
CPU1: GenuineIntel Intel64 Family 6 Model 26 Stepping 5 4206 MHz
CPU2: GenuineIntel Intel64 Family 6 Model 26 Stepping 5 4206 MHz
CPU3: GenuineIntel Intel64 Family 6 Model 26 Stepping 5 4206 MHz
GUI: Tablebases mit max. 0 Steinen gefunden! [Cache: 512 MB + intern 0.00 MB]
GUI: Shredderbases mit 0 Steinen gefunden! (0 MB)
Engine: Deep Shredder 12 x64 (4096 MB)
von Stefan Meyer-Kahlen
loading shredderbase G:\Programme (x86)\ShredderChess\Deep Shredder 12 UCI\Shredderbases\\all345_fast.tbe
shredderbases with 5 pieces found (441 MB)
Engine: Critter 0.90 64-bit SSE4 GTB (4096 MB)
von Richard Vida
2/02 0:00 +9.82 1.Sc3 Kd7 (278)
2/02 0:00 +9.88 1.Sf4 e5 2.Sd5 (296)
3/04 0:00 +9.88 1.Sf4 e5 2.Sd5 (468)
4/06 0:00 +9.91 1.Sf4 e5 2.Sd5 Kd7 3.Kd2 Ke6 (768)
5/06 0:00 +9.91 1.Sf4 e5 2.Sd5 Kd7 3.Kd2 Ke6 (1.394)
5/06 0:00 +9.95 1.Sg3 Kd7 2.Se4 Kc6 3.Kd2 (2.561)
5/06 0:00 +9.99 1.Sc3 Kd7 2.Kd2 Kd6 3.Ke3 (3.093)
6/08 0:00 +10.01 1.Sc3 Kd7 2.Kd2 e5 3.Se4 Ke6 4.Ke3 (4.046) 252
7/08 0:00 +9.96 1.Sc3 Kd7 2.Kd2 Kd6 3.Ke3 Ke5 4.Lf3 e6 (6.987) 436
8/10 0:00 +10.03 1.Sc3 Kd7 2.Kd2 Kd6 3.Ke3 Ke5 4.Se4 Kd5 (12.473) 779
9/12 0:00 +10.03 1.Sc3 Kd7 2.Kd2 Kd6 3.Ke3 Ke5 4.Se4 Kd5 5.Lb3+ Ke5 6.Sc5 (24.468) 764
10/12 0:00 +10.08 1.Sc3 Kd7 2.Kd2 Kd6 3.Ke3 Ke5 4.Lf3 Kd6 5.Se4+ Kd5 6.Sf6+ Ke5 (61.600) 1310
10/14 0:00 +10.15++ 1.Kf2 (107.490) 1706
10/14 0:00 +10.22 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Ke6 4.Sd4+ Kd6 5.Lb3 Kc5 6.Se6+ Kd6 (122.683) 1947
11/16 0:00 +10.34++ 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Ke6 4.Sd4+ Kd6 5.Lg4 Kc5 6.Ke5 Kb6 7.Lf3 (146.565) 1879
11/16 0:00 +10.46++ 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Ke6 4.Sd4+ Kd6 5.Lg4 Kc5 6.Ke5 Kb6 7.Lf3 (155.763) 1996
11/16 0:00 +10.42 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Ke6 4.Sf4+ Kd6 5.Kf5 Kc7 6.Ke5 Kd7 7.Lb5+ Kc7 8.Se6+ Kb6 (171.480) 2198
12/16 0:00 +10.54++ 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Ke6 4.Sf4+ Kd6 5.Kf5 Kc7 6.Ke5 Kd7 7.Lb5+ Kc7 8.Se6+ Kb6 (263.272) 2393
12/18 0:00 +10.66++ 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Ke6 4.Sf4+ Kd6 5.Kf5 Kc7 6.Ke5 Kd7 7.Lb5+ Kc7 8.Se6+ Kb6 (275.845) 2206
12/20 0:00 +10.68 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Ke6 4.Sd4+ Kf6 5.Lc4 Kg7 6.Ke5 Kf8 7.Se6+ Ke8 8.Ld3 (327.702) 2324
13/22 0:00 +10.77 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Kc6 4.Sd4+ Kc5 5.Lf3 Kb4 6.Lg4 Kc3 7.Sc6 Kd2 8.Sxe7 Kc3 (494.305) 2629
14/22 0:00 +10.81 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Kc6 4.Sd4+ Kc5 5.Lf3 Kb4 6.Lg4 Kc3 7.Sc6 Kd2 8.Sxe7 Ke1 (788.089) 2962
15/22 0:00 +10.81 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Kc6 4.Sd4+ Kc5 5.Lf3 Kd6 6.Lg4 Kc5 7.Ke5 Kb4 8.Sc6+ Kc3 9.Sxe7 Kd2 10.Kd4 Ke1 (1.341.770) 3304
16/22 0:00 +10.81 1.Kf2 Kd7 2.Ke3 Kd6 3.Ke4 Kc6 4.Sd4+ Kc5 5.Lf3 Kd6 6.Lg4 Kc5 7.Ke5 Kb4 8.Sc6+ Kc3 9.Sxe7 Kd2 10.Kd4 Ke1 (2.677.251) 3813
16/22 0:00 +10.92++ 1.Sd4 e5 2.Sc6 (3.093.183) 3885
16/24 0:00 +11.04++ 1.Sd4 e5 2.Sc6 (3.111.373) 3831
16/24 0:00 +11.22++ 1.Sd4 e5 2.Sc6 (3.116.565) 3838
16/24 0:00 +11.48++ 1.Sd4 e5 2.Sc6 (3.121.648) 3844
16/24 0:00 +11.87++ 1.Sd4 e5 2.Sc6 (3.128.563) 3783
16/24 0:00 +12.46++ 1.Sd4 e5 2.Sc6 (3.129.955) 3784
16/24 0:00 +13.33++ 1.Sd4 e5 2.Sc6 (3.130.361) 3785
16/24 0:00 +14.65++ 1.Sd4 e5 2.Sc6 (3.130.697) 3785
16/24 0:00 +16.62++ 1.Sd4 e5 2.Sc6 (3.131.023) 3786
16/24 0:00 +19.58++ 1.Sd4 e5 2.Sc6 (3.131.384) 3786
16/24 0:00 +125.00++ 1.Sd4 e5 2.Sc6 (3.132.137) 3715
16/26 0:00 +M42 1.Sd4 Kf7 2.Lb3+ Ke8 3.Le6 Kf8 4.Sc6 Ke8 5.Se5 Kf8 6.Sg6+ Kg7 7.Sxe7 (3.168.455) 3440
17/26 0:01 +M38 1.Sd4 Kd7 2.Lg4+ Kd6 3.Le6 Ke5 4.Sf5 Kxe6 (3.425.679) 2710
17/26 0:01 +M28 1.Lh3 Kd8 2.Sd4 Kc7 3.Lf3 Kd8 4.Sc6+ Ke8 5.Lh5+ Kf8 6.Kd2 Kg7 7.Sxe7 (3.700.176) 2419 TB:28.802
18/26 0:01 +M28 1.Lh3 Kd8 2.Sd4 Kc7 3.Lf3 Kd8 4.Sc6+ Ke8 5.Lh5+ Kf8 6.Kd2 Kg7 7.Sxe7 (3.786.185) 2246 TB:29.854
19/26 0:02 +M28 1.Lh3 Kd8 2.Sd4 Kc7 3.Lf3 Kd8 4.Sc6+ Ke8 5.Lh5+ Kf8 6.Kd2 Kg7 7.Sxe7 (4.399.167) 1854 TB:45.109
20/30 0:05 +M23 1.Lh3 Kd8 2.Sf4 Kc7 3.Sg6 Kd6 4.Kd2 e6 (7.045.600) 1182 TB:110.650
21/30 0:10 +M23 1.Lh3 Kd8 2.Sf4 Kc7 3.Sg6 (9.826.539) 935 TB:173.115
22/33 0:26 +M21 1.Lh3 Kd8 2.Kd2 Kc7 (21.855.468) 839 TB:436.058

[rvida]

Richard,

I haven't tested the GTB suport. I see that the distro includes gtb32.dll and gtb64.dll. I already have different versions of these in my critter directory. Critter and gaviota share a directory as the \gtb (tablebase) directory is just under it.

Should I put 0.90 in a new directory with the new dll's, and change the uci option to find the gtb files elsewhere? Please advise on what to do with the dll versions.

I recommend unpacking the archive in a separate folder because older Critter versions will not work with the new dlls (and vice versa).

Tablebase files can be located anywhere, just set GaviotaTbPath UCI option accordingly.

Richard

[rvida]

ah, I almost forgot - it scores around 60% against Critter 0.80

Wow, congrats, only with these changes?

Code: Select all

- decreased some bonuses related to pawn structure
- revised "bad trade" evaluation - now it is more willing to go into exchange sacrifices
- LMR in pv nodes 

Miguel

Of course not These were only the biggest contributors to the strength increase. Besides these I touched almost every aspect of the engine - there are some speed optimizations, tightened up pruning margins, tweaked static eval, even the opening book was updated. Most of the changes alone are barely measurable, unless playing a huge number of games, but they add up.

Richard

[rvida]

I take it that the source code is private. Is there any way you can produce a Mac OS X binary?

Thanks.

Unfortunately not. However, I did some work on a linux port. Currently it compiles without errors with gcc and even runs fine single threaded, but it crashes too often for my taste when running with more than 1 core. I guess on Mac OSX it would be the same. But keep your fingers crossed, maybe by the time of the next release I will sort things out.

Richard

[michiguel]

ah, I almost forgot - it scores around 60% against Critter 0.80

Wow, congrats, only with these changes?

Code: Select all

- decreased some bonuses related to pawn structure
- revised "bad trade" evaluation - now it is more willing to go into exchange sacrifices
- LMR in pv nodes 

Miguel

Of course not These were only the biggest contributors to the strength increase. Besides these I touched almost every aspect of the engine - there are some speed optimizations, tightened up pruning margins, tweaked static eval, even the opening book was updated. Most of the changes alone are barely measurable, unless playing a huge number of games, but they add up.

Richard

Thanks, I was going to hit may head against wall otherwise

Are we ready for a 1.0 version or the next one will be 0.95?
Congratulations again, Critter must be now among the very best.

Miguel

[mhalstern]

Richard,

I got the GTB (5 man set) Tablebase access working with 0.90. I don't remember If I tested with 0.8. I'm not sure if I can blame this weirdness on the Fritz12 Gui, but this is what I had to do:

I extracted the programs and the dll's to it's own directory. I set Frittz to not give tablebase access (my Nalimov TB direcotory) to the GUI. I created Critter_0.90_64bit_SSE4.exe as a uci engine in Fritz12. I then loaded it and via the gui, set the gtb path to where it was located:

c:\engines\gaviota\gtb and set tablebase access to everywhere. I loaded a 5 man position that ends in Mate and set critter 0.90 in infinite analysis. It showed an eval, not the mate, proving that the GTB's were not being accessed. I then moved the gtb directory to the root of the C: drive and loaded critter 0.90 with the default \gtb path and set tablebase access to everywhere. It then anounced the mate instantly.

No complaints - I just thought the post might help others.

[fern]

Ok man, already defeated at 40/30. Move number 38 or so. Strong stuff you have here...
Fern

[Hugo]

Hello

on my AMD 1090T sixcore I get error messages(exceptional error) and engine stops then.
OS is Win 7 ultimate
GUI is DeepFritz 11 GUI
Also the spped is low on this AMD(soft overclock to 3,8GHz). I get 7000KNs average
On my Intel i7 950 (not overclocked) quad critter is clear faster.

Help please. Critter is a wonderfull engine I want to play with @ playchess.

Kind regards, Clemens Keck

[Werner]

Hi Christian,
please try again with an own folder for Critter 0.90 and copy all new files in it. This is what I did and what the author suggest.