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Shuffle puzzles

My database includes 1645 puzzles for the moment and I'm constantly generating more. Rules: Fill in the board so the sum of each row is the number to the right in the row, and the sum of a column is the number in the bottom of the column. You must you all numbers 1-20.

76300 puzzles downloaded.

16 15       74
        13 50
9     3   21
      10   65
46 33 45 32 54 1-20
Showing puzzle number: 508
Startnumbers: 6
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