New engine releases 2019

[voffka]

Igel 1.9.0 at https://github.com/vshcherbyna/igel/releases/tag/1.9.0 (binaries for Raspberry Pi, Linux, macOS and Windows).

What's new:

- Support macOS
- Use different base for evaluation parameters and tune them using coordinate descent
- Implement queen and knight mobility evaluation
- Improve mobility evaluations for other pieces to count only free (and not attacked by enemy) squares
- Improve speed when checking time limits
- Fix underrun bug when clearing pieceStack
- Extend recaptures only when searching in PV
- Disable ponder until discovered issues are fixed

Strength improvements over older versions:

Code: Select all

Score of Igel 1.9.0 64 POPCNT vs Igel 1.8.3 64 POPCNT: 922 - 387 - 433  [0.654] 1742
Elo difference: 110.26 +/- 14.59

[Norbert Raimund Leisner]

Googleplex Starthinker 1.6 https://gitlab.com/tsoj/Googleplex_Starthinker/-/tags
Minic 0.92 https://github.com/tryingsomestuff/Minic/releases

[Guenther]

Googleplex Starthinker 1.6 https://gitlab.com/tsoj/Googleplex_Starthinker/-/tags
...

Quite old news, sorry
viewtopic.php?f=2&t=69754&p=808912&hili ... er#p808912

[Damir]

Xiphos 0.5.6: https://github.com/milostatarevic/xipho ... master/bin

[Norbert Raimund Leisner]

Topple Chess 0.7.3 https://github.com/konsolas/ToppleChess/releases/

Yerba Chess by Nicholas Soetaert https://github.com/NickSoetaert/Yerba-Chess-Engine , UCI, Go - no Windows executable file available

[fabianVDW]

I have a new version of FabChess: https://github.com/fabianvdW/FabChess/releases

This version is about 100 elo stronger than the previous version:
Tests against Version 1.10 at 60s + 0.6s TC:
+375 = 253 -159 +97.87 +/- 25.22

Changelog:
-The readme was a disgrace to the project. It has been updated.
-I am currently writing an implementation wiki regarding FabChess. The evaluation page is already finished, so If you're interested check it out: Wiki, Evaluation Page
-Other changes were evaluation changes only, mostly:
-Pawn mobility was added
-Evaluation of Attacks was changed
-Evaluation of passers was changed
-Asymmetrys of PSQT were removed
-Some backend refactoring preparing SMP for future updates.
The endgame related issues now seem to be less, but are not completly resolved. I am still working on this.

I have also done several gauntlets against Glaurung, NoraGrace, AnMon, Hermann and Jumbo and Detroid.
For 40/4 TC, I expect the elo to be somewhere in the upper 2600's, maybe 2700. For 40/4 the Elo might be at around 2650. (CCRL scale)
As always, much love to the testers who have tested previous versions of Fabchess.

[Guenther]

New releases not yet mentioned:

Ronja 0.82
RapChess 20190830

Nemorino 5.22 dev (dev compilation download seems not to work anymore? Access denied)
https://bitbucket.org/christian_g_nther ... o/src/dev/

Tom-Thumb 0.3_all (found no compiled java file in the huge download?)
http://tomthumbchess.com/

Other infos:

Brembo site gone - latest wayback link added to XB/UCI chronology
https://web.archive.org/web/20180821045 ... oad_en.php

Pawny site gone - latest wayback link added to XB/UCI chronology
https://web.archive.org/web/20190130093 ... netii.net/

Jaksah has a new site, but the download (external google sheet) is missconfigured and has no permissions added
https://www.biojaksic.info/jaksah

Trappist github site vanished

[Carlos777]

New releases not yet mentioned:

RapChess 20190830

Where I can download this? No new version on this site: https://github.com/Thibor/Chess-Engine- ... s/releases

Thanks in advance.

[Guenther]

New releases not yet mentioned:

RapChess 20190830

Where I can download this? No new version on this site: https://github.com/Thibor/Chess-Engine- ... s/releases

Thanks in advance.

You have to look at the commits they show the update. RapChess is always just one js file.
Just clone/download the master as zip and use the new rapchess.js.
https://github.com/Thibor/Chess-Engine-Rapchess

[tmokonen]

You can still get dev builds from https://ci.appveyor.com/project/christi ... no/history by clicking the desired build, selecting the configuration, and then selecting artifacts. The failed builds still seem to have executables, with a version number one version behind.