◉
Plychess
Open menu
Analyze
Home
Tools
Tools
AI + Chess utilities to help you analyze and create.
Elo Gain/Loss Calculator
Estimate rating change from K × (S − E).
Open
Stockfish Output Explainer
Explain depth, eval, mate, and PV.
Open
Chess960 Castling Helper
Final squares + checklist (no confusion).
Open
Chess Board Editor
Set up any position by dragging pieces, then send it to analysis.
Open
Chess Diagram Maker
FEN→PNG and PGN→WebM for pro diagrams.
Open
Free Online PGN Analysis
Analyze chess PGN files online with visualization and move exploration.
Open
Chess GIF Maker
Convert chess PGN games to an animated GIF or WebM for social media.
Open
Canadian Ratings Estimator
Estimate CFC rating change from event results.
Open
Chess Clock
Two-player clock with presets and increments.
Open
PGN Cleaner
Normalize, strip comments, and tidy PGN files.
Open
FEN Validator
Validate FEN and inspect fields & piece counts.
Open
Opening Explorer
Browse openings and learn common continuations.
Open
Elo Gain/Loss Calculator
Expected score + K-factor → estimated rating change.
Open
Stockfish Output Explainer
Explain depth, eval, mate, and PV in plain English.
Open
Chess960 Castling Helper
Final squares + rules + checklist for castling.
Open
Chess960 Generator
Generate Fischer Random start positions.
Open
More tools are coming soon. Click into each tool for details.