Logic Masters Deutschland e.V.

Solve at: F-puzzles

Rules

• Standard sudoku rules apply.
• Digits in shaded cells form a set of 1-9 and must not see a copy of themselves in a cell within two king's moves. The contrary applies to digits in unshaded cells: Unshaded cells must see one or more other copies of themselves within two king's moves.

Note: ignore the gray "lines" in box 7 as that's just how F-puzzles displays neighboring cells belonging to an extra region