Sum Sudoku XXII

Psycho Sudoku!
By PSYCHO SUDOKU  |  April 9, 2008

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Put one digit from 1–9 in each square of this Sudoku so that the following two conditions are met: 1) each row, column, and 3-x-3 box (as marked by shading in the grid) contains the digits 1–9 exactly one time, and 2) the sums of the numbers in each area marked off by heavy black lines total the little number given in each of those areas. It’s psychotic!

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