Chiron 4 is the latest version of the chess engine Chiron, the current Italian Champion and the 3rd strongest engine available for Android*
Chiron 4 is about 70 points stronger than Chiron 3, supports multiple processors, Polyglot and CTG opening books, several endgame tablebases formats (Syzygy, Gaviota). If you want a chance to win against Chiron, you can limit its playing strength.
Chiron comes in both Chessbase and Open Exchange formats.
CHIRON IS A CHESS ENGINE THUS NEEDS A CHESS GUI TO BE USED.
RUN THE APP TO VERIFY YOUR LICENSE BEFORE PLAYING WITH IT IN A GUI.
BUYERS OF THE WINDOWS VERSION GET THE ANDROID ONE FOR FREE.
Chiron's main features are:
playing strength of about 3160 Elo points on single core (CCRL 40/4)
parallel search up to 512 threads
adjustable playing strength with autolimitation of book knowledge
support for UCI and Winboard2 communication protocols
MultiPV and searchmoves for game analysis
support for Chess960
support for Polyglot opening books
support for CTG opening books
support for Syzygy bases
support for Gaviota tablebases
smart detection of pawn blockages
Here's a short list of changes in Chiron 4:
- improved automatic tuning of the evaluation
- improved evaluation of passed pawns, mobility, opposite bishops ending
- improved forward pruning in the search
- improved LazySMP for parallel search
- minor speed optimizations
- fixed a pondering bug
- fixed two time management bugs under the Winboard protocol
Major chess GUIs:
Chess For Android (free)
Scid on the Go (free)
Chessbase Online (commercial)
Chess PGN Master (commercial)
For a description of all the options please visit the official website: http://www.chironchess.com/support
* Rapidroid rating list - April 2017