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Calcudoku puzzles

My database includes 4597 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row and every column contains the digits 1 through 9. Each box must also be calculated according to number and operator. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

2023325 puzzles downloaded.

12*
1-
29+
1680*
19+
36*
18*
4*
640*
12+
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Showing puzzle number: 3790
Puzzletype: Plus,Minus,Multiply,Divide
Startnumbers: 81
Difficulty: Medium ()
Solution methods: SC SPC SMC SSB SSL ROP RP RSNA
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