OpenChess

Solista Attack is a Stockfish derivative. The engine plays much more actively than Stockfish dev, and seeks to attack the king. Nevertheless, the engine is also very strong positional too. It is particularly good for Blitz. Polyglot opening book is supported. I have attached my latest "Solista Attack.CTG" book! The engine can learn. The StockfishMZ experience file is supported (it needs to be renamed to "SolistaAttack.exp"). The EXP file can be edited with the "StockfishMZ Experience Tool". You can download the StockfishMZ engine on my homepage too. My own EXP-file is also attached. It was trained with my book on PlayChess.com with about 3500 games 5+0. With the combination of engine + CTG book + EXP file you get a very powerful weapon for online games. Have fun!

Download on my homepage:
https://solistachess.jimdosite.com/engines/

NEW Solista Attack v1.1.CTG (Zip, 15MB)

Implemented:
Improved variants
New winning variants from PlayChess.com (until 07 October 22)
Petroff Defense for Black
Closed Ruy Lopez for Black

https://filehorst.de/d/erDvqCFm

And on my Homepage
https://solistachess.jimdosite.com/engines/

All new games are manually checked. No easy wins are implemented, including all wins on time and engine crashes. Big blunder are not implemented, including well-known killer variants like these:



The variant is already implemented in the book. The only draw for Black is 24...Ra5! Anything else is bad, which I don't want to implement repeatedly.

Update: Solista Attack v1.1 (ZIP, 43.4 MB, AVX2, BMI2, SSE41, EXP-File, CTG-Book):

https://filehorst.de/d/encvjkbg

and on my Homepage
https://solistachess.jimdosite.com/engines/

Engine:
Revert "Mix alpha and statScore for reduction"

EXP-file:
More games

CTG-Book:
Improved (now Version 1.1a)