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Re: New engine releases 2019
Posted: Thu May 23, 2019 9:49 am
by JohnWoe
Thanks for the builds!
This new version(1.11 / 1.12) is just an eval cleanup. There was stuff I wrote long time ago I didn't understand so I removed them.
It seems Sapeli plays better.
+ It castles ASAP.
+ It keeps pawn in front of his king.
I need to run more tests before making a release.
Re: New engine releases 2019
Posted: Thu May 23, 2019 12:53 pm
by flok
Re: New engine releases 2019
Posted: Thu May 23, 2019 2:27 pm
by Stan Arts
Nemeton 1.81 from the link in my signature below.
Kind regards,
Stan
Re: New engine releases 2019
Posted: Thu May 23, 2019 3:18 pm
by Gabor Szots
Stan Arts wrote: ↑Thu May 23, 2019 2:27 pm
Nemeton 1.81 from the link in my signature below.
Kind regards,
Stan
Thank you, Stan. Judging by the version number the changes are minor. What are they?
Re: New engine releases 2019
Posted: Fri May 24, 2019 12:26 pm
by Stan Arts
Gabor Szots wrote: ↑Thu May 23, 2019 3:18 pm
Stan Arts wrote: ↑Thu May 23, 2019 2:27 pm
Nemeton 1.81 from the link in my signature below.
Kind regards,
Stan
Thank you, Stan. Judging by the version number the changes are minor. What are they?
Hi Gabor,
Usual code optimisations but the main thing is a nullmove trick. I reduce an extra ply if static eval is significantly out of window.
Cheers,
Stan
Re: New engine releases 2019
Posted: Fri May 24, 2019 1:15 pm
by Gabor Szots
Stan Arts wrote: ↑Fri May 24, 2019 12:26 pm
Gabor Szots wrote: ↑Thu May 23, 2019 3:18 pm
Stan Arts wrote: ↑Thu May 23, 2019 2:27 pm
Nemeton 1.81 from the link in my signature below.
Kind regards,
Stan
Thank you, Stan. Judging by the version number the changes are minor. What are they?
Hi Gabor,
Usual code optimisations but the main thing is a nullmove trick. I reduce an extra ply if static eval is significantly out of window.
Cheers,
Stan
Thank you. I'm going to start its testing on Sunday, if everything goes as planned.
Cheers,
Re: New engine releases 2019
Posted: Sun May 26, 2019 2:41 pm
by voffka
Igel 1.6.0 at
https://github.com/vshcherbyna/igel/releases/tag/1.6.0 (binaries for Linux and Windows)
What's new:
- Re-write killer moves functionality and drop mate killers
- Re-write move ordering and introduce counter move heuristics
- Re-write LMR functionality: take into account 'improving' factor and prune more aggressively
- Increase MAX_PLY to 128 from 64
- Use tt moves in qsearch as a first move
Strength improvements over 1.5.1 in CCRL 40/40 time control:
Code: Select all
Score of Igel 1.6.0 64 POPCNT vs Igel 1.5.1 64 POPCNT: 20 - 4 - 60 [0.595] 84
Elo difference: 67.00 +/- 38.62
Relative strength compared to division 6 engines in CCRL 40/4 time control:
Code: Select all
Rank Name Elo +/- Games Score Draws
0 Igel 1.6.0 64 POPCNT 91 22 770 62.8% 23.0%
1 Francheska 14 58 100 52.0% 28.0%
2 Donna 4.1 -14 60 100 48.0% 24.0%
3 ECE-X3.5 64Bit -24 59 100 46.5% 27.0%
4 Minic 0.60 -74 60 100 39.5% 27.0%
5 WyldChess -100 62 100 36.0% 24.0%
6 DanaSah 7.3 -164 67 100 28.0% 20.0%
7 K2 v.0.91 -182 68 100 26.0% 20.0%
8 Coiled 0.6 x64 -301 111 70 15.0% 10.0%
Re: New engine releases 2019
Posted: Sun May 26, 2019 5:16 pm
by xr_a_y
voffka wrote: ↑Sun May 26, 2019 2:41 pm
Igel 1.6.0 at
https://github.com/vshcherbyna/igel/releases/tag/1.6.0 (binaries for Linux and Windows)
What's new:
- Re-write killer moves functionality and drop mate killers
- Re-write move ordering and introduce counter move heuristics
- Re-write LMR functionality: take into account 'improving' factor and prune more aggressively
- Increase MAX_PLY to 128 from 64
- Use tt moves in qsearch as a first move
Strength improvements over 1.5.1 in CCRL 40/40 time control:
Code: Select all
Score of Igel 1.6.0 64 POPCNT vs Igel 1.5.1 64 POPCNT: 20 - 4 - 60 [0.595] 84
Elo difference: 67.00 +/- 38.62
Relative strength compared to division 6 engines in CCRL 40/4 time control:
Code: Select all
Rank Name Elo +/- Games Score Draws
0 Igel 1.6.0 64 POPCNT 91 22 770 62.8% 23.0%
1 Francheska 14 58 100 52.0% 28.0%
2 Donna 4.1 -14 60 100 48.0% 24.0%
3 ECE-X3.5 64Bit -24 59 100 46.5% 27.0%
4 Minic 0.60 -74 60 100 39.5% 27.0%
5 WyldChess -100 62 100 36.0% 24.0%
6 DanaSah 7.3 -164 67 100 28.0% 20.0%
7 K2 v.0.91 -182 68 100 26.0% 20.0%
8 Coiled 0.6 x64 -301 111 70 15.0% 10.0%
Wow, at faster TC this is not the same
Code: Select all
Rank Name Elo +/- Games Score Draws
1 zurichess-neuchatel-linux-amd64 264 16 2177 82.1% 16.4%
2 MinkoChess_1.3_x64 239 16 2178 79.9% 16.7%
3 ruy-1.1.9-linux 93 13 2178 63.1% 21.1%
4 redqueen-1.1.98.linux64 -2 13 2177 49.7% 22.0%
>>5 minic_dev_linux_x64 -10 13 2177 48.6% 24.5%
6 wyldchess1.51_bmi -21 13 2177 47.0% 23.4%
7 minic_0.53_linux_x64_avx2_bmi2 -32 13 2177 45.5% 23.9%
8 minic_0.58_linux_x64_avx2_bmi2 -38 13 2177 44.5% 25.2%
9 GreKo-Linux-64 -49 13 2178 42.9% 18.1%
10 Fridolin310 -81 13 2178 38.6% 21.2%
>>11 igel-x64_popcnt1.5.1 -112 14 2178 34.5% 18.9%
12 asymptote-v0.4.2 -202 15 2178 23.8% 14.7%
13065 of 66000 games finished.
Do you know what is causing this difference between long and short TC in Igel ?
Re: New engine releases 2019
Posted: Sun May 26, 2019 7:21 pm
by voffka
Salut Vivien,
xr_a_y wrote: ↑Sun May 26, 2019 5:16 pm
[...]
Do you know what is causing this difference between long and short TC in Igel ?
I presume two factors: time management and LMR. Also, in long tc there is a chance tablebase probing code will kick-in. I will check it out, but since most of my testing time controls are 40/4 and 40/40 this is not so urgent
Mimic does not support tablebases yet?
P.S. I see you are testing a Linux version of Igel. Actually, most of my testing is done on Windows, so perhaps there is something in Linux version that slows it down.
Re: New engine releases 2019
Posted: Sun May 26, 2019 7:51 pm
by xr_a_y
voffka wrote: ↑Sun May 26, 2019 7:21 pm
Salut Vivien,
xr_a_y wrote: ↑Sun May 26, 2019 5:16 pm
[...]
Do you know what is causing this difference between long and short TC in Igel ?
I presume two factors: time management and LMR. Also, in long tc there is a chance tablebase probing code will kick-in. I will check it out, but since most of my testing time controls are 40/4 and 40/40 this is not so urgent
Mimic does not support tablebases yet?
P.S. I see you are testing a Linux version of Igel. Actually, most of my testing is done on Windows, so perhaps there is something in Linux version that slows it down.
Indeed, I often test under Linux.
Minic has experimental support of syzygy table but not really tested yet ... I'll work on that ... just finished KPK...