MagicTree 3.5 - new version chess engine

 

MagicTree - UCI chess engine written in C++

Author: Vikrant Malvankar  Rating CEDR=3035

What's New?

Release build & compatibility

▸ Engine identity is updated to MagicTree 3.5 with a 2900 Elo release label.

▸ The optimized static PEXT build adds whole-program link-time optimization for 64-bit AVX2/BMI2 processors.

▸ The public UCI option set remains compatible with MagicTree 3.4.

Evaluation retuning

▸ Broadly retuned piece activity, mobility, pawn structure, threats, king safety, passed pawns, initiative, tempo, and space.

▸ Packed middle-game/endgame scores reduce duplicated evaluator arithmetic while preserving independent phase values.

▸ Expanded evaluation tracing exposes material, pieces, passers, threats, king safety, activity, scaling, and final evaluation.

Exact & specialized endgames

▸ Added an exact KPK bitbase generated at startup and a material-keyed endgame registry for positions up to seven pieces.

▸ Added specialized knowledge and scaling for rook, queen, bishop, knight, pawn, fortress, and drawish endings.

▸ Known mating material now receives directional guidance, including bishop-and-knight mate corner guidance.

Caches & search speed

▸ Added a 2,048-entry material table and richer pawn-hash data for evaluation and tracing.

▸ Cached child check state, streamlined check-evasion counting, compacted undo records, and bounded repetition history.

▸ Expanded profiling and coefficient-tracing support for evaluation tuning and regression testing.

MagicTree 3.5 download from page