Review

Revisit puzzles you've missed — spaced repetition keeps the right puzzles in front of you at the right time

✅

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Improver users review an average of 12 puzzles per day and improve 2x faster.

Your missed puzzles are being forgotten right now. Without spaced repetition, you'll retain only 20% of patterns after 30 days (Ebbinghaus forgetting curve, 1885). Improver users on SM-2 retain 80%.

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