Puzzle No.173

This is a Kropki Sudoku from Sudokucup 1 made by Karel Tesar.

PUZZLE NO.173: KROPKI SUDOKU


SOLUTION:

Puzzle No.101

This is a Kropki Sudoku.

PUZZLE NO.101: KROPKI SUDOKU


SOLUTION:

Rules of 'Kropki Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. If the absolute difference between two digits in neighbouring cells equals 1, then they're separated by a white dot. If the digit in a cell is half of the digit in a neighbouring cell, then they're separated by a black dot. The dot staying between '1' and '2' can have any of these dots.

EXAMPLE:


UNIQUE SOLUTION: