Logic Masters Deutschland e.V.

Normal sudoku rules apply. In addition:

1. A loop must be drawn in the grid. The loop is one cell wide and may not touch itself orthogonally or diagonally.

2. The given digits in grey cells show the number of surrounding loop cells.

3. The given digits in white cells do not show the number of surrounding loop cells.

4. No given digits are on the loop.

5. The cage numbers show the sum of the cells on a loop within the cage. Digits within a cage may repeat if obeyed by normal sudoku rules.

Play online: f-puzzles

Enjoy my second puzzle!