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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.

2301070 puzzles downloaded.

2-
120*
135*
56*
2/
3/
13+
30+
15*
16+
15+
16+
23+
32*
36*
6
29+
5-
192*
18+
28*
16+
35*
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48*
12*
18+
Showing puzzle number: 3990
Puzzletype: Plus,Minus,Multiply,Divide
Startnumbers: 81
Difficulty: Medium ()
Solution methods: SC SPC SMC SSB SSL ROP RP RCPL RSNA
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