Logic Masters Deutschland e.V.

Play here: Play on SudokuPad

We've got an old, unsolved case here to prove your detective skills on. Review the evidence and figure out the truth - using normal Sudoku rules, of course.

Truth and Lies: Half the witnesses (represented by regions) are Truthful, and the other half are Lying. The descriptions for Clues below describe how those Clues work within Truthful regions. Lying witnesses, however, disobey the rules for Clues - "must" becomes "must not", and vice versa. Clues cannot be on or cross the border between a Truthful and a Lying region.

Keyholes: Cells seperated by a white keyhole must contain consecutive digits.

Hotlines: Digits on a Red Line must be ordered from highest to lowest from one end of the line to the other. However, they must not be consecutive with any other digit on the line. (In Lying regions, all numbers must be a consecutive set, but must not be ordered from highest to lowest.)