Analysis & Visualization
FEN Viewer
Visualize FEN positions, set up boards, play legal moves, and evaluate positions with a built-in engine
PGN Viewer
Load PGN files to replay and analyze complete chess games move by move
Position Research
Research and analyze chess positions with engine evaluation, PGN study, and interactive exploration
Game Composer
Create complete chess games by playing moves from both sides, add annotations, and export to PGN
Position Composer
Generate chess openings, middlegame setups, endgame studies, tactical puzzles, and strategic compositions with adjustable difficulty