Pattern Recognition

Each list adds the same step every time. What number comes next?

Score: 0

How to play

  • Each puzzle is four numbers in an arithmetic sequence: the gap between neighbours is always the same (e.g. 2, 5, 8, 11 → next is 14).
  • The line ends with “?”. Enter the next number in the field, then press Submit.
  • Correct answers increase your Score. After a miss, the true value is shown so you can verify the step you missed.
  • Press Next pattern for a new sequence. Submit the current answer first if you still want it counted.

Game description

Snapshot. A short list of integers stares back with a hidden rule—arithmetic step, repeating cycle, or layered tweak. Enter the next value, learn immediately if your hypothesis held, then advance.

Reasoning loop.

  1. Test first differences between neighbors before hunting exotic formulas.
  2. If two rules fit, pick the simpler until the next term proves you wrong.
  3. Use Next pattern after a miss so you do not anchor on a false story.
  4. Keep mental notes of families you confuse often—maybe alternating sums vs alternating signs.

Why play on fragox.com. Numeric input, instant feedback, and a running score make it feel like a workout timer for abstract reasoning instead of another passive scroll.

Logic that flexes. Hypothesis testing, graceful failure, and translating a streak into confidence are the same steps math-heavy paths reward later—only here they arrive in snack-sized lists.

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