Friday, 20 December 2013

14- X-Sums Sudoku

X-Sums Sudoku

(Published in Czech Republic Academic Championship)


Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the irregularly shaped regions. The numbers outside the grid represent the sum of the first X digits in the respective row or column, with X being the digit in the first cell of that row or column.


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