Logic Masters Deutschland e.V.

One of a pair of 6x6 puzzles composed for Scojo's zero clue prompt as redeemed by aqjhs. Here is the other, by ThePedallingPianist.
See also a smaller practice puzzle below.



Doppelgänger: Fill each cell of the main grid such that

• Every row, column and box cotains a 0 and five different digits from 1-6
• No two rows, no two columns and no two boxes may be missing the same digit
• For each 0 in the grid, the figits missing in its row, column and box must be three different digits

Zero Sum Killer Cages:

• The digits in a cage do not repeat and values sum to 0,
• For the purpose of this sum, the value of a 0 is minus one (-1) mutiplied by the sum of the digits missing in its row, column and box.

The other cells can be used for recording missing digits but do not affect the solution check.