Repeat & Fix Your Missed Chess Puzzles
Every chess puzzle you get wrong should come back until you actually learn it. This free repeat deck collects every puzzle you missed and lets you solve it again, so a mistake turns into training instead of disappearing the moment you move on.
It works the same way spaced repetition works for anything else: the patterns you keep failing are exactly the ones you need to see again. Instead of a generic review, the repeat deck is built entirely from your own misses — forks you didn't spot, mating nets you walked into, pins you missed under pressure.
No signup, no daily limit, everything runs in your browser. Clear a puzzle from the repeat deck by solving it correctly, and it stays cleared until you miss another one.
How the repeat deck works
Built from your own misses
Every puzzle you get wrong — from rated puzzles or Crazy Puzzle — drops straight into the repeat deck automatically.
Solve it until it sticks
A missed puzzle stays in the deck until you solve it correctly, so the pattern actually gets learned instead of forgotten.
No generic review
Unlike a random puzzle set, every position here is a tactic you personally missed, so the practice is targeted at your real gaps.
Tracks how many are waiting
A live counter shows how many missed puzzles are queued, so you always know how much repeat work is left.
Works with your streak
Clearing the repeat deck feeds back into your regular puzzle rating and streak, so fixing mistakes counts toward your progress too.
Free and private
The repeat deck runs locally in your browser — no account required, no cost, and no limit on how many puzzles you repeat.
How to clear your repeat deck
Miss a puzzle
Any puzzle you get wrong in rated puzzles or Crazy Puzzle is added to the repeat deck automatically.
Open the repeat tab
Switch to the Repeat tab to see every puzzle currently waiting to be solved again.
Solve it correctly
Work through the full line — solving it correctly removes it from the deck.
Keep the deck empty
Come back regularly so new misses do not pile up, and the patterns you struggle with actually close over time.
Frequently asked questions
What is the repeat deck?
It is a personal collection of every chess puzzle you got wrong, so you can solve it again instead of forgetting it. It is built automatically from your own misses in rated puzzles and Crazy Puzzle.
Is it free?
Yes, completely free with no signup and no daily limit, because it runs locally in your browser.
How does a puzzle get into the repeat deck?
Any puzzle you answer incorrectly, whether in rated puzzles or the Crazy Puzzle rush mode, is added to the repeat deck automatically.
How do I clear a puzzle from the deck?
Solve it correctly. Once you find the full line, it is removed from the repeat deck until you happen to miss it again.
Does solving repeat puzzles affect my rating?
Yes. Repeat puzzles feed back into your regular puzzle rating and streak, so fixing your mistakes counts toward your progress.
Do I need an account to use the repeat deck?
No. It works without an account. Signing in only adds cross-device sync, so your repeat deck follows you between devices.