Normal Sudoku rules apply. Place the digits 1-9 once each in every row, column, and 3x3 box.
Large gray circles indicate cells with odd digits.
Kropki: Black dots separate cells with digits in a 2:1 ratio. White dots separate cells with consecutive digits. Not all dots are given.
Black-and-white lines: Every time that a black-and-white line crosses a cell border, a kropki dot is placed. Along each line, kropki dots alternate between white and black. For the one time that a black-and-white line moves diagonally, the placed kropki dot only affects the cells on the line and not necessarily the cells on the opposite diagonal.
Parity Lines: Digits along red lines alternate between being odd and even.
To Play:
SudokuPad