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Spot the rule in a number sequence and type the next number. Every sequence has exactly one answer. Choose your level and Timed or Goal mode, then explore with Hint and Solve.
Each sequence follows one rule. Work out the next number, type it on the keypad and press OK. Right first time scores full points; after a wrong answer the sequence is worth half. Hint names the rule, then shows the calculation; Solve shows the answer. Choose your level and Timed or Goal mode in Preferences.
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Everyone · choose Easy to Expert in game
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Version 0.1.6 · Build 106
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