Preview

Analyze, explore, and edit chess positions effortlessly.

Level up your chess game with everything from full game-review to opening study.

01 / Game analysis

Game analysis view showing a chessboard, game flow chart, and blunder list.
Review full games with a flow chart, categorized blunders and best moves.

02 / Move prediction

Move prediction view showing principal variation arrows and Stockfish candidate lines.
Explore the strongest Stockfish lines from any position.

03 / Position editor

Position editor view showing spare pieces around a custom chess position.
Set up custom board positions with spare pieces, unrestricted piece movement, and instant analysis.

04 / Opening explorer

Opening explorer view showing an opening line, highlighted move list, and magenta next-move arrow.
Explore opening theory through guided move sequences.

05 / Historic games

Historic games explorer showing player, side, variation, and game filters.
Match your position against historic games, then replay full games from the same explorer.

Full feature list

A full-featured workspace for better chess.

Game analysis

  • Load chess.com games by username.
  • Review game control and identify blunders from an interactive flow chart.
  • Trace blunders against stronger continuations.
  • Compare played moves against best moves.

Prediction

  • Predict the best next move with Stockfish 18.
  • Compare the strongest candidate lines from each position.
  • Control depth, number of variations, notation, and engine timeout.
  • Optionally play as one side while the engine replies.

Explorer

  • Browse opening groups and variations.
  • Compare your choices against established game lines.
  • Search historic games by player, side, and variation.
  • Replay opening and historic-game lines move by move.
  • Explore alternate paths from known game continuations.