Logic Masters Deutschland e.V.

Normal Sudoku rules apply:

• Place the digits 1-9 once each into every row, column, and 3x3 box.

• Locate six killer cages in the grid, each consisting of six orthogonally connected cells, and each containing the digits 1-6 without repeats.
• Cages do not touch orthogonally, but may touch diagonally.

• A number outside the grid gives the sum of a contiguous set of cells which are in a killer cage.
• Such sets must be separated by at least one uncaged cell.
• In a row or column with a clue, all contiguous sets are given, in the correct order.
• "?" represents any digit that is a multiple of 3.
• "??" represents any two digit number that is a multiple of 3.
• "*" represents any number of sets, including none; which may or may not sum to a multiple of 3.

• Every digit 3 inside a Killer cage 'sees' three cells from its cage, including itself, where uncaged cells and the edge of the grid blocks sight.