chess.fixingdeer.com
Tools for the improving player
Live

Opening Lab

Drill chess openings against a configurable Stockfish engine. Choose the opening you want the engine to play, set the engine strength, and practice the lines that matter to your game.

Live

Puzzle Mix

Lichess puzzles, your way. Select multiple themes and motifs and drill them in combination — something Lichess itself won't let you do.

Work In Progress

Chess Moves

Analyze your Chess.com and Lichess games with Stockfish. Identify patterns in your mistakes and track your improvement over time.

Alpha (Expect Issues)

Puzzle Book

Turn your own blunders into personalized puzzles. Import your games, create puzzles from critical positions, and drill them with spaced repetition until they stick.