How Spaced Repetition Works
Master tactics through scientifically-proven intervals
1 day
1
Review 1
First repetition
8 days
2
Review 2
Building memory
24 days
3
Review 3
Strengthening
Perfect!
Mastered
~1 month
OR
With mistakes
Mastered
~7 months
4
Review 4
+60 days
5
Review 5
+122 days
Fast track: Solve a puzzle correctly on your first try for all 3 reviews, and it's mastered in about 1 month.
With mistakes: If you fail any attempt, 2 extra reviews are added to reinforce the pattern. This takes about 7 months total.
Failed a review? The puzzle returns to the 1-day interval so you can practice again.
Prefer solving from the page? The same 5,000-puzzle ladder is available as a 10-book paperback series — train at a real board, then log your reviews here.
View the books on Amazon ↗