ReplayChess
Find the grandmaster's move, then finish the game yourself
The story
Overview
ReplayChess is a web app for playing chess history rather than watching it. You pick a legend (Morphy, Fischer, Kasparov, Carlsen and 50+ others), jump into one of their famous games at its critical position, and play it out against a friend via a private link, a rating-matched opponent, or Stockfish running as WebAssembly in your browser. After the game it compares your moves with the original line: match rate, the first move where you diverged, and a practice mode to retry. An ECO-coded openings encyclopedia of 3,600+ positions is playable the same way. It is aimed at club and online players (roughly 800-2000) and coaches; free to play with a $4.99/month Player plan; MIT-licensed on GitHub; installs as a PWA.
Key features
Play as a legend
50+ players from Morphy to Carlsen, each with famous games whose critical positions are ready to play
Divergence report
Match rate against the original moves and the exact move where you left the grandmaster's line
Stockfish in the browser
WebAssembly engine at four strengths, from Easy to roughly 2200, plus real opponents via rating-based matchmaking
Use cases
- 1
Club and online chess players
Practise the middlegames your repertoire actually produces instead of replaying the first ten moves
- 2
Chess coaches
Hand a student a specific position via a private link (no account needed) and review the divergence report together
Tech stack & tags
Feedback & Discussion
Discussion
The founder is asking for feedback
Which famous game or position would you want added first?
Sign in to leave a comment or rating.
No comments yet. Be the first.
More Gaming tools
