Difficulty: BRAIN
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The Reduced Operators version of CalcuDoku is here.
These puzzles are also available to newspapers, magazines and other publishers. Be the first to have my CalcuDoku puzzles printed!
You can use my CalcuDoku Calculator to help you out with the possible combinations for a cage.
Enjoy!
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[…] started playing “the new Sudoku” puzzles that appear in The Times (UK). We call them CalcuDoku or “Square […]