Wednesday, 26 March 2014

25- Kropki Sudoku

Kropki Sudoku

(LMI Beginners' Sudoku Test - February 2014)

Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each row, column and 3x3 box. The white dots indicate all the adjacent/neighboring cells in which the difference between the two cells is 1. The black dots indicate all the adjacent cells in which one digit is the double of the other one. The dot between two cells with digits 1 and 2 has any of these two colors.

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