Saturday, 21 December 2013

15- Repeated Diagonals

Repeated Diagonals

(Published in Czech Republic Championship)

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. Moreover, there are some shaded cells in the grid which the number in such cells indicate how many times that number is repeated (other than itself) in that cell diagonals.

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