Lineup Grid Puzzle

A single line of Seekers and a fistful of positional clues: who stood before whom, who was never at the end. Get the order right and the thief is the one whose story can't fit. One of five styles of the daily logic puzzle. Also try the dual-category logic puzzle, or browse past mysteries in the archive.

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Lineup Grid Puzzle

A Morning Mystery is a logic-grid deduction puzzle: a short scenario, a cast of suspects, and a handful of clues that fit together exactly one way. Read the clues, rule things out on the grid, and name the culprit. Most take about ten minutes.

You solve it by elimination, never by guessing. Every clue removes possibilities; mark what a clue rules OUT and the answer emerges from what's left. If you get stuck, a hint narrows the grid for you; taking one costs time on the leaderboard but never blocks the solve.

A new mystery posts every morning, and the deduction style rotates: the classic grid, dual-category grids, directional map puzzles, paired-statement truth-tellers, and lineup ordering. Dani's Diabolically Difficult Deduction is the same day's puzzle at maximum difficulty, for people who want a fight.

Every puzzle prints. The daily pack collects the day's sheets with an answer key at the back, and past mysteries stay playable in the archive. Solving an old one just won't land on that day's live leaderboard. Free, no account needed; signing in only saves your solve times and streak.

How the lineup grid puzzle works

A single line of Seekers stands in order, and you rebuild that order from positional clues: who stood before whom, who was never at the end, who was somewhere between two others.

It differs from the other grids because the answer is an order rather than a pairing. Each Seeker gets exactly one place, and no two can share one, so every place you fix removes it from everyone else.

A solving tip: begin with the clues that rule a Seeker out of the ends of the line, then place anyone with a fixed spot. Every mark must be provable from the clues you can see, so a mark that will not stick means a clue is still missing. Go back through the ones you skipped before you reach for a hint.

New to logic grids? The full Morning Mysteries guide has a worked example and answers to common questions. You can also browse every logic puzzle on the site or play past mysteries from the archive.

lineup grid puzzle terms

Seeker

One of the characters in a Morning Mystery. You work out what each Seeker did, sold or said. More in the glossary

Lineup puzzle

A logic puzzle where you work out the order of a row of Seekers from position clues. More in the glossary

Position clue

A clue about order, such as who stood before whom or who was never at the end. More in the glossary

Elimination

Solving by ruling out every option that cannot be true until only one is left. More in the glossary

Clue

A short hint that points to an answer or rules something out. More in the glossary Also on Final Boss Editing: Clue