Train your brain. Crack the case. Grid-based deduction mysteries designed for curious kids.
Start Sleuthing → See how it worksSee it in action
Each clue eliminates possibilities. Watch how the deduction unfolds — one clue at a time.
How it works
Each case has a fun mystery premise — animals, colors, hobbies — and a set of logical clues.
Read each clue carefully and tap ✓ or ✗ on the grid to record what you know.
When every cell is filled, you've solved it! Cases get harder as your detective skills grow.
Why families love it
Einstein-style deduction teaches systematic reasoning in a hands-on, kid-friendly format.
Cases scale from simple 3×3 grids for beginners up to complex multi-category puzzles.
Every minute is active thinking — no passive watching, no luck, just reasoning.
Work through cases as a family or let kids tackle them solo. Both are great options.
For teachers & homeschoolers
Standalone K–12 lessons on logic grids, reading clues closely, evidence vs. inference, and spotting faulty reasoning — with worksheets, answer keys, and smartboard activities. No app required.
Browse the lessons →Free to play on web, iOS, and Android. No account needed for your first few cases.
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