Anti-King Kropki Sudoku
Sudoku with consecutive or double dots between neighbours. Cells that touch as a king moves cannot contain the same digit.
Controls
Solve the sudoku. A white dot means neighbours differ by 1; a black dot means one is double the other. No dot means neither relation holds. Cells that touch as a king moves cannot contain the same digit.
Logic · Numbers · Deduction · Grid
Brain training · PuzGo