I just release Amoeba 3.1. It fixes a few bugs and probably adds a bunch of others. It should be about 30 Elo stronger than the previous version
https://github.com/abulmo/amoeba/releases/tag/v3.1
Have fun with it.
New engine releases 2020
Moderators: hgm, Rebel, chrisw
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- Full name: Richard Delorme
Re: New engine releases 2020
Richard Delorme
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- Full name: Tony Mokonen
Re: New engine releases 2020
Because Win7 support has ended, I have spent the entire day backing up and reluctantly "upgrading" this machine to Windows 10, and will not be able to test for Win7 compatibility any more.Guenther wrote: ↑Wed Jan 15, 2020 9:13 am Great. I tried the previously released compile by Daniel too that way and it also runs here in compatibility mode.
It's strange to be forced to enable Win7 compatibility mode on Win7. (even more, as this was the day Win7 support officially ended)
I will remove my compilations.
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Re: New engine releases 2020
Bagatur 1.9a and some sort of DEV version are available:
https://github.com/bagaturchess/Bagatur ... ads/Engine
Kouri 1.15
https://github.com/hamzainaan/Kouri/releases/
Sugar-NN 150120
https://github.com/Zerbinati/SugaR-NN/releases
FoxSEE 0.2.0
https://github.com/redsalmon91/FoxSEE/releases
https://github.com/bagaturchess/Bagatur ... ads/Engine
Kouri 1.15
https://github.com/hamzainaan/Kouri/releases/
Sugar-NN 150120
https://github.com/Zerbinati/SugaR-NN/releases
FoxSEE 0.2.0
https://github.com/redsalmon91/FoxSEE/releases
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- Full name: Guenther Simon
Re: New engine releases 2020
This is Vice plus enhancement from an open source Lichess bot, also derived from Vice,
so nothing original in it. (forking SF, DefenChess, RubiChess, Ethereal, Laser will make
things not better in the future)
Needs checking - looks familiar, but my guess is that it is 'modelled' after another already available rust program,tmokonen wrote: ↑Thu Jan 16, 2020 4:17 am FoxSEE 0.2.0
https://github.com/redsalmon91/FoxSEE/releases
w/o mentioning this.
https://rwbc-chess.de
trollwatch:
Talkchess nowadays is a joke - it is full of trolls/idiots/people stuck in the pleistocene > 80% of the posts fall into this category...
trollwatch:
Talkchess nowadays is a joke - it is full of trolls/idiots/people stuck in the pleistocene > 80% of the posts fall into this category...
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- Full name: Guenther Simon
Re: New engine releases 2020
It seems what looked familiar was the usual CPW influence - I will add it to my chronology for nowGuenther wrote: ↑Thu Jan 16, 2020 9:08 amNeeds checking - looks familiar, but my guess is that it is 'modelled' after another already available rust program,tmokonen wrote: ↑Thu Jan 16, 2020 4:17 am FoxSEE 0.2.0
https://github.com/redsalmon91/FoxSEE/releases
w/o mentioning this.
OTH the rust chess engines 'market' exploded...
(there was already TSCP + Vice + SF in rust, but now there are dozens of new ones to check)
https://github.com/search?o=desc&q=rust ... positories
I hope for this one in near future, uci is planned for 1.0 milestone
https://github.com/ColonelPhantom/fe_chess
https://rwbc-chess.de
trollwatch:
Talkchess nowadays is a joke - it is full of trolls/idiots/people stuck in the pleistocene > 80% of the posts fall into this category...
trollwatch:
Talkchess nowadays is a joke - it is full of trolls/idiots/people stuck in the pleistocene > 80% of the posts fall into this category...
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- Full name: Jonathan Kreuzer
Re: New engine releases 2020
Slow Chess Blitz Classic 1.8 is now available : https://www.3dkingdoms.com/chess/slow.htm
- Thoroughly reworked a lot of code, and tweaked eval, but not sure what specific to mention.
- Further increased value of king safety/checks, pawn promo threats, and some other threats. (Realized with modern search this helps to follow threats even if values seem too high to me.)
King safety is getting pretty aggressive for near term danger, but accuracy isn't great. And still needs work building to an attacking position (and also to be better at building positional advantages to press, which sometimes creates weaknesses leading to attack.)
- Optimized code to be about 20% faster + changed Threat Moves to detph > 3 to minimize slow-down and be more about not missing something. Seems the hard-coded threat move detection is only a small elo increase at this point, though hard for me to measure.
- Did a code cleanup pass to prepare for multi-threading and code portability. Maybe version 1.9 will support multi-threaded search.
I realized I still don't do nearly enough testing to estimate strength accurately, I was trying lots of changes for no consistent improvement for last couple weeks. (Lot of variation in 500 game matches, then even much more when I added variety of opponents), but it was always stronger than 1.7, with a few scattered extra good results. (Realistically hoping for around +35 elo, though did have some better runs.)
My current plan is trying to add parallel search for a version 1.9 that probably will otherwise be similar to 1.8. That seems like a good way to close out the modernization of Slow Chess for the Classic for the 1.x series.
- Thoroughly reworked a lot of code, and tweaked eval, but not sure what specific to mention.
- Further increased value of king safety/checks, pawn promo threats, and some other threats. (Realized with modern search this helps to follow threats even if values seem too high to me.)
King safety is getting pretty aggressive for near term danger, but accuracy isn't great. And still needs work building to an attacking position (and also to be better at building positional advantages to press, which sometimes creates weaknesses leading to attack.)
- Optimized code to be about 20% faster + changed Threat Moves to detph > 3 to minimize slow-down and be more about not missing something. Seems the hard-coded threat move detection is only a small elo increase at this point, though hard for me to measure.
- Did a code cleanup pass to prepare for multi-threading and code portability. Maybe version 1.9 will support multi-threaded search.
I realized I still don't do nearly enough testing to estimate strength accurately, I was trying lots of changes for no consistent improvement for last couple weeks. (Lot of variation in 500 game matches, then even much more when I added variety of opponents), but it was always stronger than 1.7, with a few scattered extra good results. (Realistically hoping for around +35 elo, though did have some better runs.)
My current plan is trying to add parallel search for a version 1.9 that probably will otherwise be similar to 1.8. That seems like a good way to close out the modernization of Slow Chess for the Classic for the 1.x series.
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Re: New engine releases 2020
I strongly suggest you to move towards the statistical techniques that have proven successful for so many engines to evaluate patches. SPRT is the most reliable way of assessing improvement without excessive resource usage.
Methods that stick to low sample sizes get more and more ineffective as the engine's strength increase, and testing against other engines dilutes your already limited hardware resources.
Methods that stick to low sample sizes get more and more ineffective as the engine's strength increase, and testing against other engines dilutes your already limited hardware resources.
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- Full name: Jonathan Kreuzer
Re: New engine releases 2020
Assuming I continue to a Classic 2.x series, I probably will try to be more scientific about testing (and also get a 16 or 32 core machine to at least have some resources for it.) So far I have mainly been trying ideas that seem interesting to code and re-writing old code (the Blitz wv2.1 code was a horrible mess in many aspects.) and watching games and sometimes inspecting individual positions, evaluation values, search trees and some stats.
For smaller individual patches I figured I have no hope of measuring, so have been only doing full version testing to verify some improvement. But playing a match with a small number of games (eg. 500) and getting results near the edge of expected range like +50 elo, then +15 elo, then +35 elo was the source of some frustration when I was hoping for +50. And of course bringing in other similar rated programs to try to verify only added to the confusion.
For smaller individual patches I figured I have no hope of measuring, so have been only doing full version testing to verify some improvement. But playing a match with a small number of games (eg. 500) and getting results near the edge of expected range like +50 elo, then +15 elo, then +35 elo was the source of some frustration when I was hoping for +50. And of course bringing in other similar rated programs to try to verify only added to the confusion.
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- Full name: Roland Chastain
Re: New engine releases 2020
Good news! I hadn't noticed the release of v1.7.jonkr wrote: ↑Fri Jan 17, 2020 10:32 pm Slow Chess Blitz Classic 1.8 is now available : https://www.3dkingdoms.com/chess/slow.htm
For me, I would like to have a Linux version of the engine.
See you soon! I go to test the two latest versions.
Qui trop embrasse mal étreint.
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Re: New engine releases 2020
Gabor Szots
CCRL testing group
CCRL testing group