Series
Series is a number pattern game about finding the rule that connects each sequence. Solve ten unique puzzles per round, from simple steps to alternating and combined patterns, with four choices and a 15-second timer.
Puzzle 0 / 10
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✦ SERIES ✦Start15
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Can you crack the sequence?
Find the rule behind each number sequence. Choose the missing number before time runs out.
Top 5 highscores
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How to play
How it works: Study the visible terms and choose the missing next number from four options. Each round draws ten different puzzles from the selected level, with 15 seconds per question.
Score and best result: A correct answer earns 10 base points plus up to 15 speed points. Your best score is saved separately for each level in this browser.
Gameplay demo
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