CCRL Discussion Board

Hi all,
I recently released a small search & tuning update, + around 60 elo. Gains a LOT more in 4CPU due to having fixed a memory leaked and some other bugs.
https://github.com/SnowballSH/Avalanche ... tag/v2.1.0
And is possibly the version competing at TCEC Swiss 6.

Thanks for testing!

Hi all, A new version of Avalanche was just released (coincidence with like some 7 other engines today lol). v2.0.0 is about 140-180 elo stronger than v1.5.0 in selfplay, but I'm expecting a ~70-90 elo increase on CCRL. More information here: https://github.com/SnowballSH/Avalanche/releases/tag/v2.0...

Sounds good, thanks!

Hi All, I am glad to announce the release of Avalanche 1.5.0. The major experiment with this release is Lazy SMP, which enabled multi-threaded search. It would be great, if possible, if this version can be queued into 4CPU testing. I am curious how much strength 4CPU brings. Otherwise, the elo gain ...

Note: "go depth xx" and "go movetime xx" are currently broken. I will fix it in the next release. I hope it doesn't affect testing.

Hi all, First of all, congratulations on the 100th Amateur Series! Thank you for voluntarily doing this. CCRL team, you all are amazing. I just got back from school to coding for a bit... So I'm here to release v1.4.0 for the 100th amateur series, I guess. v1.4.0 is around 3131 elo, but can be anywh...

Your approach might work :) Avalanche uses a legal-move generator so I never faced king in check problems. I also couldn't bother generating moves lazily, I just generate all legal moves at once and completely sort it lol. Partially generating moves is probably a much better technique. Good luck on ...

Hi, Avalanche author here. Regarding the time forfeit thing - unfortunately sometimes you have to “waste” a depth, if the engine has less than a certain amount of time (the Move Overhead parameter). Say 50ms; when time goes below 50ms we must immediately stop even if we are in the middle of the dept...

Hi all, I found out what was wrong with v1.3.0 and fixed it in v1.3.1. I also did some tuning. I ran 200 games and it seems to be gaining elo compared to v1.2.0 now. https://github.com/SnowballSH/Avalanche/releases/tag/v1.3.1 I expect about 3082 elo for v1.3.1. Thanks very much for testing! Thanks....

Hi all,
I found out what was wrong with v1.3.0 and fixed it in v1.3.1. I also did some tuning. I ran 200 games and it seems to be gaining elo compared to v1.2.0 now.

https://github.com/SnowballSH/Avalanche ... tag/v1.3.1

I expect about 3082 elo for v1.3.1.

Thanks very much for testing!

Something is wrong with v1.3.0’s playing strength… It seems to be missing some moves due to bad move ordering… I won’t be surprised if v1.3.0 performs worse than 1.2.0 in long games then…
I take my words back — I might release a v1.4.0 just fix the issues and 2.0.0 will be only threading support

Hi all, I am sorry for being a week late on my "monthly" release. I just released version 1.3.0 of my Avalanche Chess Engine. I'm expecting it to be ~66 elo higher, so a new rating of around [3090, 3130]. More info and binaries here: https://github.com/SnowballSH/Avalanche/releases/tag/v1...

Hi all, I am sorry for being a week late on my "monthly" release. I just released version 1.3.0 of my Avalanche Chess Engine. I'm expecting it to be ~66 elo higher, so a new rating of around [3090, 3130]. More info and binaries here: https://github.com/SnowballSH/Avalanche/releases/tag/v1....

Hi everyone!
I'm glad to release v1.2.0, after about a month of work. I'm estimating around [2910, 2960] elo on CCRL. It is around 110 elo stronger than v1.1.0.
All the details and binaries are here: https://github.com/SnowballSH/Avalanche ... tag/v1.2.0

Thanks so much for the testing!

Hi All, I'm happy to release what I've accomplished during the past 40 days, v1.1.0 of Avalanche. v1.1.0 is ~112 ELO stronger than 1.0.0. It is expected to be around 2850 ELO. See more information as well as the binaries here: https://github.com/SnowballSH/Avalanche/releases/tag/v1.1.0 Thanks! I'm ...

Hi All,
I'm happy to release what I've accomplished during the past 40 days, v1.1.0 of Avalanche.
v1.1.0 is ~112 ELO stronger than 1.0.0. It is expected to be around 2850 ELO.

See more information as well as the binaries here: https://github.com/SnowballSH/Avalanche ... tag/v1.1.0

Thanks!

1600 Blitz I see.. Congrats! )

People still use Wndows 7 ?? :shock: Frankly if I were you I would not expend any effort to support that. Unfortunately when you use old hardware and old operating systems you have to expect that over time some newer software might not work. This is what the Zig community also told me… They dropped...

Hi all, I removed the new threading system and falls back to the exact same interface code I used in v0.2.2. https://github.com/SnowballSH/Avalanche/tree/8d2707d7ca178ef9d17c33c2286e913bc401adac/binaries I hope it fixes both the DLL issue and the timeout issue. Thanks! Sorry, but it still shows the...

Hmm. It looks like Graham Banks ran it fine… but someone also told me the same issue on lichess. I’ll investigate further. Thanks!

Hi all,
I removed the new threading system and falls back to the exact same interface code I used in v0.2.2.
https://github.com/SnowballSH/Avalanche ... c/binaries
I hope it fixes both the DLL issue and the timeout issue.
Thanks!

Hi, I'm back after around 1.5 months of coding! Since v0.2.2, I felt the code is too messy and impractical, so I erased most files and started a rewrite from scratch. It is now released as v1.0.0! The release and information is here: https://github.com/SnowballSH/Avalanche/releases/tag/v1.0.0 The b...

Hi, I'm back after around 1.5 months of coding! Since v0.2.2, I felt the code is too messy and impractical, so I erased most files and started a rewrite from scratch. It is now released as v1.0.0! The release and information is here: https://github.com/SnowballSH/Avalanche/releases/tag/v1.0.0 The b...

Hi, I'm back after around 1.5 months of coding! Since v0.2.2, I felt the code is too messy and impractical, so I erased most files and started a rewrite from scratch. It is now released as v1.0.0! The release and information is here: https://github.com/SnowballSH/Avalanche/releases/tag/v1.0.0 The bi...

Hi, I see an Amteur chess engine tournament (Avalanche seems to be in div. 8) is coming up, so I want to save my progress so far here. Can you use v0.2.2 https://github.com/SnowballSH/Avalanche/releases/tag/v0.2.2 for the division 8 tournament? It is stronger and more stable. Thanks! Binaries: http...