Twenty number series in five rounds, easy to hard, like 3, 7, 11, 15, 19, ?. 20 seconds each, one life. Find the rule and pick the next number; every problem you clear is a point. Keys 1 to 4 answer. The clock starts when you do.
About Series
Series is a free daily number-pattern game from Mind Loft, a sibling of Blitz. Every one of its twenty problems is a run of numbers, like 3, 7, 11, 15, 19, ?, and you pick what comes next. The series climb through five rounds, from steady steps and doubling up to gaps that grow, gaps that flip back and forth, two series woven together, squares, cubes and each term built from the ones before. You get twenty seconds each and one life, so your score is how far up the ladder you got before a wrong answer or an empty clock stopped you.
Every series is fair. Five numbers fit any rule if you are inventive enough, so each line is checked against the rules a person actually reaches for (a constant step, a constant ratio, a growing step, alternating steps, two series interleaved, the sum of the terms before, times something plus something) and every rule that fits must point at the same answer on the board. The wrong options are real mistakes: the last gap added again when the gaps are growing, the wrong half of a woven pair, a doubling where the rule was doubling plus one.
Everyone plays the same twenty series in the same order each day, so the daily leaderboard is a straight fight: furthest wins, and ties break by time. Twenty new series drop every day at midnight Eastern. No app, no signup, play free in your browser, keep a streak, and race the daily leaderboard. It is one fifth of the Math Gauntlet, with Blitz, Blitzed, Gap and Back.
Series, in short
How do you play Series?
Every line is a run of numbers, like 3, 7, 11, 15, 19, ?. Find the rule and pick the next one. Twenty climb from steady steps to growing gaps, woven pairs, squares and cubes, twenty seconds each, and one wrong answer ends the run.
Is Series free to play?
Yes. Series is free to play in your browser on Mind Loft, with no app to install and no account required.
When does a new Series puzzle come out?
A new Series arrives every day at midnight Eastern time.
What kind of puzzle is Series?
Series is a daily number puzzle from Mind Loft: twenty series, what comes next. Puzzle type: number series. It is part of the daily number puzzles lineup.
Can I play past Series puzzles?
Yes. Every past Series board is in the puzzle archive, a tap away by day.
What other daily number puzzles does Mind Loft have?