Memorize & confuse

You'll see four patterns for 30 seconds. Memorize them. Then you'll see a bigger set of patterns and need to pick the same four back out — pointing first to the one you're most sure of.

1. 1 Study 4 patterns for 30 seconds.
2. 2 They'll be hidden for a short pause.
3. 3 Pick the 4 you remember from a larger set of 16 — most confident first. Only credit for exact matches, so don't guess wildly.
4. 4 Do as many rounds as you like — each one adds more data.