Logic Masters Deutschland e.V.

Fog of war sudoku. Mixed rules. Link to puzzle. sudokupad. There is a video solution and more puzzles on youtube channel "sudoku spot" video solution. Rules: Normal sudoku rules apply. Fog is revealed as correct numbers are placed. No guessing is required. There is a single German whisper loop that goes through every 8 on the board except the 8 in the middle 3X3 region (box 5). The loop is not drawn on the board and you need to find where this loop goes. The loop can only move orthogonally. Cells next to each other on a German whisper loop must differ by at least 5. All German whisper lines revealed are on the loop. Pink lines are Renban lines which have consecutive numbers in any order on the line, no repeats. Black dots separate cells in the ratio 1:2