Logic Masters Deutschland e.V.

This was made to mark the occasion of a lovely day out in London with friends from the sudoku community, including meeting LMDemasi on his visit to the UK. I can confirm he's just as wonderfully witty in person, and it was a pleasure to meet him and the family!

More thanks than usual to my dad and also LMDemasi himself for this one, as their thorough testing and feedback resulted in improvements to the puzzle.



Normal 6x6 sudoku rules apply.

UNIQUE KILLERS TOUR
- Draw a loop that travels orthogonally between the centres of some cells;
- A cage is unique if the sum of its digits is not repeated in any other cage in the grid;
- Every cage that the loop visits is unique;
- Every cage that the loop does not visit is non-unique;
- Digits may not repeat in a cage.