New features
- NNUE based evaluation. Network file is included in the binaries package.
Assets
3
Bug fixes
- Reverted time management changes introduced in 3.6.0 since they caused a degrade when using Fischer time control
- Fixed search depth handling when using multiple threads
- Fixed a number of smaller issues related to search info output
Assets
3
New features
- MultiPV support
Improvements
- Improved LMR formula
- Evaluation of tempo
- Switched to using only one slot for killer moves
- Fixed issues with with ordering of promotion moves
- Use PGO for builds
Assets
3
Improvements
- SEE improvements
- More aggressive SEE pruning
- Improved time management
- Added counter move and follow-up move history heuristic
- Store position evaluation in transposition table
Assets
3
New features
- Increased max hash size to 128GB
- Increased max number of threads to 512
Improvements
- Threat evaluation
- Evaluation of connected pawns
- Space evaluation
- Improvements to time management
- Switched version of Fathom library to https://github.com/jdart1/Fathom
Assets
3
This is the version of Marvin that played in TCEC S17 QL. It's only marginally stronger than 3.4.0 and is not intended for serious testing.
Assets
3
New features
- New opening book
Improvements
- More aggressive late move pruning
- Improved history heuristic
- Refactoring of move generation and move selection code
- A number of smaller tweaks to the handling of the transposition table
- Some SEE optimizations
Bug fixes
- Fixed a number of problems related to reading of Polyglot opening books
- Fixed reporting of seldepth in UCI protocol
Assets
3
Bug fixes
- Fixed a bug where the engine would sometimes fail to win in a mate-in-x position
Assets
3
Bug fixes
- Fixed syntax of UCI info commands sent to GUI
Assets
3
New features
- Added LogLevel command for UCI
- Improved info reporting for UCI
- Adam optimizer for the tuner
Improvements
- Lots of refactoring and bug fixes
- Evaluate free passed pawns
- Counter move heuristic for move ordering
- Recapture extension
- Improved depth selection scheme for Lazy SMP
- Tuned margins for futility pruning and reverse futility pruning
Assets
3
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