Logic Masters Deutschland e.V.

• Normal Windoku rules apply (place the digits 1 to 9 without repetition in every row, column, box and cage).

• A gold cell contains its position within its row, column, box or cage (if applicable). Position is read from left to right, top to bottom.
For example the gold cell R3C4 contains either 4 (position in row), 3 (position in column), 7 (position in box) or 6 (position in cage).

• All possible gold cells are given.
For example the white cell R1C5 does NOT contain 5 (position in row), 1 (position in column) or 2 (position in box).

SudokuPad