Calcudoku puzzlesMy 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.
1946968 puzzles downloaded.
Difficulty: Very Difficult ()
Solution methods: SC SPC SSB SSL ROP RP RCPL RSNA XW
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