About Logic Detective
Logic Detective is a set of gentle mysteries that teach children to reason from evidence. In Spot the Changes they compare two pictures and tap what's different: something swapped, recolored, flipped or gone. Odd One Out shows four things where three share a property, and the game always says why — “the others all live in water”. Who Took It? is the heart of the game: four or six animal suspects with hats, glasses and scarves, and a case file of clues such as “the toy-taker does NOT wear glasses”. Children cross suspects out until one is left. If the last suspect doesn't fit, the game points to the clue it breaks. Logic Grids ask children to work out which of three friends has which pet, snack or toy. Every puzzle is new each time, and each one is checked to have exactly one answer the clues support. An optional Case of the Day is generated on your device from the date, so the whole family can try the same mystery, with no streak to keep.
What children learn
- Compare two pictures carefully and notice small differences
- Classify objects by a shared property and explain the rule
- Use “not” clues to rule out possibilities (process of elimination)
- Combine several clues to reach a single conclusion
- Check an answer against the evidence and spot the clue that doesn't fit
Tips for parents
- Read the clues together and ask “who does this clue rule out?” before tapping.
- Praise the reasoning (“you used the glasses clue!”) as much as the answer.
- Play real-life Who Took It?: hide a toy and give your child three clues.
- Logic Grids are hard at first. Solve one together on paper with a small table.
- All the mysteries are friendly — no villains, just borrowed toys.
Tips for teachers
- Who Took It? suits a whole-class “detective” lesson: pupils argue for each elimination using the clue.
- Logic Grids introduce the process of elimination ahead of more formal logic puzzles in upper grades.
- Odd One Out explanations make a good speaking and listening prompt: can pupils find a different rule?
- Generated puzzles mean pupils sitting side by side get different cases.
Logic Detective FAQ
Is it scary?
No. The mysteries are about missing toys, and the suspects are friendly animals. There's no danger, no villains and no punishment.
What age is Logic Detective for?
Ages 6 to 10. Spotting changes and odd one out suit six- and seven-year-olds; suspect line-ups and logic grids suit children who can read short clues, roughly 7 to 10.
Can there be more than one answer?
Each puzzle is checked when it's made so the clues point to exactly one answer. The game accepts whatever fits all the clues, and if an answer doesn't fit it shows which clue it breaks.
What is the Case of the Day?
A bonus two-part mystery made on your device from today's date, so everyone playing today gets the same case. There are no streaks or reminders — it's just there if you'd like it.
Is it free and safe?
Yes. No sign-up, chat or personal information; progress is saved only in your browser.