Ethereal8.37 Release

[AndrewGrant]

Excited to put out a new version of Ethereal after a few months work

Source : https://github.com/AndyGrant/Ethereal
Release : https://github.com/AndyGrant/Ethereal/r ... /tag/V8.37

Copy paste of the release comment:

Functional Changes:
Implemented Texel Tuning for almost all parameters
First tuned PSQT and PassedPawns (+24 ELO @ 30s+.03s)
Then tuned everything but king params (+40 ELO @ 30s+.03s)
Implemented the same SRNG that Stockfish uses in order to get a bench for all platforms
Lowered some futility margins (+9ELO @ 60s+.06s)

Non-Functional Changes
Added a bench marking output similar to stockfish
Extended PV Tracking to include qsearch (longer lines, no functional difference)
Make use of __builtin_ctzll(bb) for getLSB. Should be portable, assuming gcc?

Testing against a pool of engines shows about a +70 ELO gain, (more with the LSB change). My pool is becoming outdated, so that could be an inflated (or hopefully deflated) estimate.

As always a thank you to the testers, as well as those who partook in my various Texel Tuning threads over the last month or so.

[Guenther]

Thanks for the new version. 70+ is a great progress.

Guenther

[Damir]

Thanks a lot for the new engine.
Can you tell us estimation in elo ? How strong is it ?

[AndrewGrant]

Best guess I can make is the rating on CCRL + 70Elo, so 2743 + 70, call it 2800 and some change.

[Graham Banks]

70 Elo is a nice gain. Well done!

[Damir]

Best guess I can make is the rating on CCRL + 70Elo, so 2743 + 70, call it 2800 and some change.

Thanks. That is very nice improvement. I hope you continue in improving your engine.