Réti

Stop losing the same game twice.

Type your chess.com or Lichess username — your last game starts replaying.
Your game, told like a story — every turning point named as it happens.
Step into any position and explore the lines you didn't play.
Every game you've played, with the moment each one turned.
The mistake you keep making, named — across all of your games.
Share the moment a game turned, narrated and ready to post.

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Launching on the App Store and the web.

App StoreOn the web

How Réti works

  1. Type your username

    Free for any single game — chess.com or Lichess, no account, right in your browser.

  2. Watch the game as a story

    Your game replays move by move, every mistake explained in plain language.

  3. See the pattern

    Réti remembers across your games and shows you the mistake you keep making.

The difference

Other tools grade one game. Réti remembers all of them.

Chess.com and Lichess show you one game's mistakes, then move on. Réti learns across every game you play and names the one you keep repeating.

Example pattern
Recurring mistake · The early queenYour queen leaves home before your knights — and spends the opening running.In 11 of your 14 losses this month.

Réti finds your mistakes, then helps you fix them.