New engine releases & news 2021

[amanjpro]

sacai-engine v1.0

A powerful, open-source neural chess engine combining the neural nets of lc0 with a custom Montey-Carlo Tree Search algorithm (based on Ceres'). Tested ELO: 3356.95.

https://github.com/sanchit-sehgal/sacai ... tag/latest

It looks like it's just a Ceres clone with no significant changes (if any). The directory structure has been changed, but all the files are still there. Also as Ceres is GPL licensed, the "author" can't just relicense it as Apache legally afaik.

Quite disappointing

Oddly, the README.md file says Apache license, but the LICENSE.md file says GPL?

You caught the guy fast: https://github.com/sanchit-sehgal/sacai ... ea0a6b7d80 hhh

[amanjpro]

I did a bit of research, and this Sacai engine is too sad to pass

It first appeard as a python engine:

https://github.com/sanchit-sehgal/sacai ... 001787b99b

Then, "src/f1" was uploaded a bulkupload of Ceres code base:

https://github.com/sanchit-sehgal/sacai ... fe96d26273

The "author" is too bold to fail to even change the license text, here is an example of the license:

Code: Select all

#region License notice

/*
  This file is part of the Ceres project at https://github.com/dje-dev/ceres.
  Copyright (C) 2020- by David Elliott and the Ceres Authors.
  Ceres is free software under the terms of the GNU General Public License v3.0.
  You should have received a copy of the GNU General Public License
  along with Ceres. If not, see <http://www.gnu.org/licenses/>.
*/

Then, second version appears:

https://github.com/sanchit-sehgal/sacai ... 5ec5de495c

Still copy righted (of course) to Ceres.

Even the fourth "version" comes with Ceres copyright: https://github.com/sanchit-sehgal/sacai ... f7e5336e65

Well, even the current version still licences everything to Ceres: https://github.com/sanchit-sehgal/sacai ... .cs#L1-L10

yaaaay we are dealing with a professional

[algerbrex]

Blunder 7.4.0 is released. Downloads and release notes available here: https://github.com/algerbrex/blunder/re ... tag/v7.4.0

Should be roughly 50 Elo stronger than 7.3.0 and 100 Elo stronger than 7.1.0/7.2.0, putting it at 2500+ Elo.

[Guenther]

SF dev from yesterday finally has a new net file.
https://abrok.eu/stockfish/

Code: Select all

Update default net to nn-d93927199b3d.nnue

Using the same dataset as before but slightly reduced initial LR as in
https://github.com/vondele/nnue-pytorch/tree/tweakLR1 

[silentshark]

Francesca 0.31 released. Minor increase in strength, I hope (+25 ELO?).

www.silentshark.co.uk

More stuff in the readme.txt

[Werewolf]

HIARCS 15 looks like end of this week / early next week

[Brunetti]

ChessKiss 1.8

http://meandmybits.blogspot.com/

Alex

[mvanthoor]

HIARCS 15 looks like end of this week / early next week

After almost 10 years? That'd better make a splash with a +500-600 improvement or nobody will pay any attention to it.

HIARCS was one of my favorites back in the late 2000's next to Fritz. The versions 10 and 12 that I have play quite understandable chess and are (were) good for analysis back then.

Even so, its hard to go back to commercial engines now that there are so many open source engines that are more than capable enough... now that I have my own engine that can one day potentially be as strong or stronger as the Hiarcs 10, Fritz 11 and Hiarcs 12 I have.

[Brunetti]

ChessEngineVS 0.1

https://github.com/FeudMe/ChessEngineVS

Alex

[Guenther]

ChessEngineVS 0.1

https://github.com/FeudMe/ChessEngineVS

Alex

It calls itself 'Leandor'
author: Oliver Leenders (Germany - Konstanz)

Code: Select all

UCI console -- Ready to take commands...
uci
id name Leandor
id author Oliver Leenders
uciok