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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.

1680*
108*
45*
180*
4-
378*
84*
15+
6*
4
45*
3-
4
18*
56*
10+
30*
5376*
21*
378*
216*
3-
16*
5-
16+
108*
18*
224*
80*
Showing puzzle number: 2991
Puzzletype: Plus,Minus,Multiply
Startnumbers: 81
Difficulty: Medium ()
Solution methods: SC SMC SSB SSL ROP RP RSNA
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