How to play
- Read all visible terms before choosing a rule.
- Test each candidate against every transition, not only the first pair.
- Choose the rule that fits all shown terms and read the generated check.
What this game practices
Better than a bare “what comes next?” prompt because the task is to test stated rules against evidence. It still uses curated options, so explaining a self-generated rule remains a valuable follow-up away from the screen.
How we checked it
Original coolmath game. Each prompt supplies a finite sequence and three explicit candidate rules, avoiding the claim that a short sequence has only one possible continuation.
Reviewed by coolmath Editorial Team · Updated 2026-09-20