Project
Kepler Chess Engine
Kepler is my from scratch C++17 chess engine. It is built to study search and evaluation in a clean, modular codebase while still being fast enough to play real games over UCI.
The current strength is about 2038 Elo based on testing. The engine is still in progress and the focus is on steady gains.
Strength
~2038 Elo
current testing
Status
In progress
active development
Interface
UCI
GUI ready
Core
C++17
bitboards and TT
Game viewer
One of Kepler's games against Stockfish 2000, to show how the engine plays.
Search stack
Iterative deepening negamax with alpha beta pruning, quiescence search, and a transposition table. Move ordering uses history and SEE to keep the tree tight.
Move generation
Bitboards, attack tables, and full legal move generation. Perft tests are used to keep movegen correct during changes.
Evaluation
Classical terms for material, mobility, pawn structure, and king safety. NNUE support sits beside the classical eval and can be toggled at runtime.