Play
Analyze
Diagnose
Train
Improve
Develop Your Chess
Why did
you lose?
Paste one Chess.com or Lichess game. Get the three decisions that mattered—and a short workout built from your weaknesses.
Active puzzle time
How long do you want to solve?
Only active, focused time counts. Pause whenever you need to.
Workout length30 minutes
Puzzle workoutKeep solving
00:00 / 30:00
Workout pausedYour puzzle is waiting.
Interactive game lesson
Find 3 better moves.
Your game report
Personal training session
Your 5-minute workout
Built from the weakness in this game.
