Rules
Ninety seconds, and everyone in the world gets the same 81 cards. Three cards make a triad when every trait — count, colour, shape, fill — is all the same or all different.
- Tap three cards; a valid triad clears them and new cards fill in.
- Every trait must be all-same or all-different across the three cards.
- A wrong pick costs 3 seconds; a reveal costs 8.
- Three fast finds in a row is a chain: +3 seconds back on the clock.