Detective Deduction
About Detective Deduction
Eliminate suspects from scene clues, narrow down a secret number, or find a mystery character in a lineup
Detective Deduction unites Whodunit, Deduction, and Guess Who into a single logical-elimination hub. Every round gives you a set of clues and a line-up of candidates · suspects at a scene, candidate numbers, or illustrated character portraits · and challenges you to rule out the impossible until only one culprit remains.
Suspect Clues mode (Whodunit). Clues are found at the scene, each suspect's card shows the marks they leave, and you identify the one suspect whose profile accounts for every clue.
Number Clues mode (Deduction). Read arithmetic and parity constraints (even/odd, divisibility, digit sums, range bounds) and pick the single number that satisfies every clue.
Character Lineup mode (Guess Who). Cross-check visual trait clues (glasses, hats, hair, accessories) against a lineup of characters to isolate the mystery person.
Switch modes anytime. Use the game settings menu to play All (rotating across all three detective modes) or lock in Suspect Clues, Number Clues, or Character Lineup.
📄 Print Practice Worksheet for Detective Deduction
Want to deepen your skills in Detective Deduction? Recommended reading: Make It Stick: The Science of Successful Learning by Peter C. Brown, Henry L. Roediger III, Mark A. McDaniel .
Harvard University Press definitive work on retrieval practice, cognitive retention, and turning working memory into permanent recall.
Want to practice Detective Deduction offline without screens? Recommended gear: MicroMacro: Crime City Prisbelönt Detektivspel (Edition Spielwiese / Pegasus Spiele) .
Lös gåtor på en gigantisk stadskarta: Årets spel med 16 kriminalfall som löses med förstoringsglas.
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FAQ
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What modes are in Detective Deduction?
Detective Deduction combines Suspect Clues (formerly Whodunit), Number Clues (formerly Deduction), and Character Lineup (formerly Guess Who), plus an All mode that rotates through all three. -
How do I find the culprit or answer?
Check each candidate against the clues one by one. Any suspect, number, or character that violates even a single clue is ruled out; the one candidate that satisfies every clue is the answer. -
What does Detective Deduction train?
Deductive and abductive reasoning · constraint satisfaction, elimination of impossibilities, and systematic cross-checking under increasing clue complexity. -
Does Detective Deduction get harder?
Yes. Higher difficulty adds more clues and more decoys that share almost every trait or mathematical property with the true answer. -
Can I print Detective Deduction as a worksheet?
Yes. Both Suspect Clues and Number Clues print cleanly with the worksheet generator at /worksheets with a full answer key. -
Can MemPi help me study and practice this game?
Yes! Click MemPi in the header or on the game board to summon him. He observes the board, thinks out loud, and can demonstrate moves or guide you through tricky steps.