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Lanterna Books Junior

All puzzles

Logic puzzles for kids

Sudoku-style cases to play online, as a family or in class. A new puzzle every Wednesday; the earlier ones stay here, with their solutions explained.

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Coming soon

The next case arrives on Wednesday

New suspects, a new grid. It will be added here, free to play.

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How do you play?

  1. 1Read the cluesEach sentence tells you where a suspect, or the missing object, was.
  2. 2Place the tokensOnly one per row and per column, just like sudoku.
  3. 3Find the culpritIt’s the only suspect in the same area as the object.

Every puzzle comes with a hint and the solution explained.

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Signing up is optional: every puzzle stays playable here.

Free gift: the Detective Kit, 3 printable cases with solutions