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Igel 2.6.0 at https://github.com/vshcherbyna/igel/releases/tag/2.6.0 (binaries for Linux, macOS and Windows).

This release brings various improvements in strength, especially in evaluation function and adds around 55 elo of strength at LTC.

What's new:

- Implement piece threats evaluation
- Simplify connected pass pawn evaluation
- Implement backward pawn evaluation
- Apply tempo after interpolation and speed up null move evaluation
- Implement verification qsearch for probcut
- Remove L1 normalisation from tuner and retune all params
- Implement trapped rook evaluation
- Implement razoring in search
- Implement king danger evaluation
- Implement hanging piece evaluation
- Implement weak pawn evaluation
- Implement restricted piece evaluation
- Implement lazy evaluation with a threshould of 300cp
- Implement multicut search
- Implement threat by a protected pawn evaluation
- Improve safe check evaluations
- Bench 7538060

Regression run against Igel 2.5.0 at 60s+0.6 time control:
In case of bug reports, questions, discussions please ask them at main Igel topic at http://talkchess.com/forum3/viewtopic.p ... 88#p854288 to prevent polluting this thread.

Many thanks for new Igel Mr Volodymyr.

Roland Chastain wrote: ↑Mon Jan 27, 2020 11:47 pm I created a git repository with the source code of Clericus/Hopeless by Pawel Koziol. I made some modifications for compatibility with the current version of the Delphi compiler, tried to refresh the graphical interface, added a french translation and made some other little modifications. The repository is here:

https://gitlab.com/rchastain/hopeless

Hello! I ported Clericus/Hopeless from Delphi to Lazarus. So Hopeless is now available for Linux. You can find the source code of the Lazarus project and a Linux 64 binary here:

https://gitlab.com/rchastain/hopeless-l ... -/releases

I can't provide a Windows binary because I no longer have a Windows system. If there is a Lazarus and Windows user who would want to build the engine for Windows, he would be welcome. (Please choose the "XBoard_Release" build mode.)

Regards.

Roland

Thanks , hopefully someone can share a windows binary.

Roland Chastain wrote: ↑Sat Aug 01, 2020 8:44 pm

Roland Chastain wrote: ↑Mon Jan 27, 2020 11:47 pm I created a git repository with the source code of Clericus/Hopeless by Pawel Koziol. I made some modifications for compatibility with the current version of the Delphi compiler, tried to refresh the graphical interface, added a french translation and made some other little modifications. The repository is here:

https://gitlab.com/rchastain/hopeless

Hello! I ported Clericus/Hopeless from Delphi to Lazarus. So Hopeless is now available for Linux. You can find the source code of the Lazarus project and a Linux 64 binary here:

https://gitlab.com/rchastain/hopeless-l ... -/releases

I can't provide a Windows binary because I no longer have a Windows system. If there is a Lazarus and Windows user who would want to build the engine for Windows, he would be welcome. (Please choose the "XBoard_Release" build mode.)

Regards.

Roland

I did make an attempt to create a Windows build using Lazarus 2.0.10 and the GUI build seems to work but the xboard build crashes as soon as I try to start a game in Arena.

https://ibb.co/5W8cv6v

I have made no attempt to debug that. If you want to pursue this I do not mind spending some time on this.

adnoh wrote: ↑Sun Aug 02, 2020 12:26 am I did make an attempt to create a Windows build using Lazarus 2.0.10 and the GUI build seems to work but the xboard build crashes as soon as I try to start a game in Arena.

https://ibb.co/5W8cv6v

I have made no attempt to debug that. If you want to pursue this I do not mind spending some time on this.

Great! Thank you. Let's continue the discussion here:
http://talkchess.com/forum3/viewtopic.php?f=2&t=74648

Damir wrote: ↑Sat Aug 01, 2020 7:53 pm Many thanks for new Igel Mr Volodymyr.

Thanks Damir, I am glad if people find Igel useful.

Hello, I made my first chess engine, Mr Bob. Thought I might post this here.

https://github.com/bobsquared/Mr_Bob_Ch ... tag/v0.7.0

Halogen 6 released

https://github.com/KierenP/Halogen/releases/tag/v6

In single threaded, probably about +120 ELO (2463 CCRL Blitz)
In multi threaded, probably about +180 ELO (2587 CCRL Blitz)

Both popcnt and non-popcnt builts supplied. Can anyone who uses non-popcnt builds verify it works on their machine? I have no way of making sure

Kieren Pearson wrote: ↑Wed Aug 12, 2020 7:02 am Halogen 6 released

https://github.com/KierenP/Halogen/releases/tag/v6

In single threaded, probably about +120 ELO (2463 CCRL Blitz)
In multi threaded, probably about +180 ELO (2587 CCRL Blitz)

Both popcnt and non-popcnt builts supplied. Can anyone who uses non-popcnt builds verify it works on their machine? I have no way of making sure

Thanks for the new release. I tested the popcount compile and noticed it is not a static one.
Thus people would need to dig out the missing and fitting libraries.
Better create a static one for those, who cant compile and still use old hardware.