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Calcudoku puzzles

My database includes 6875 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 4. 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.

114613 puzzles downloaded.

12*
12*
8+
1-
8+
6*
Showing puzzle number: 2257
Puzzletype: Plus,Minus,Multiply
Startnumbers: 16
Difficulty: Medium ()
Solution methods: SPC SMC SSB SSL ROP
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