Tag Archives: OPERATORS

Killer Sudoku with all operators in TwoDoku format

I don’t think I’ve ever posted a puzzle like this one. Yes it is essentially a Killer puzzle. Yes, it’s also an overlapping sudoku puzzle, Gattai-2 (TwoDoku). But it also has some similarity with Calcudoku puzzles, because you must use all four operators (+, -, *, /). Killer TwoDoku with all ops for Tuesday, February […]

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Weekend Special – CalcuDoku Samurai (Gattai-5) puzzle

This is my largest CalcuDoku puzzle so far. Previously I published a CalcuDoku Samurai 7×7, but this time the puzzle is even larger: 8×8 CalcuDoku Samurai for Saturday, February 28, 2009. CalcuDoku for Saturday, Feb 28, 2009Difficulty: IQClick on the puzzle thumbnail to access the puzzle. Tweet The Reduced Operators version of CalcuDoku is here. […]

Posted in CalcuDoku, Free sample puzzles, Samurai sudoku | Also tagged , , , , , , , | 3 Responses

Square Wisdom: 200 CalcuDoku puzzles

My first CalcuDoku book can now be purchased on Amazon! Tweet The book contains 200 puzzles ranging in sizes from 5×5 to 9×9. – 136 puzzles are with all operators, evenly split into the standard five difficulty levels: EASY-COOL-THINKER-BRAIN-IQ, but there are also a couple INSANE – 64 puzzles are with the (significantly) reduced number […]

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Daily Kendoku (CanCan, SquareWisdom) #10

Another rather large Kendoku puzzle for the end of week. This time there are 4 puzzles arranged in a “Ring”. 7×7 Diagonal Kendoku Ring for Friday, October 17, 2008. CalcuDoku for Friday, Oct 17, 2008Difficulty: IQClick on the puzzle thumbnail to access the puzzle. Tweet The Reduced Operators version of CalcuDoku is here. These puzzles […]

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Daily Kendoku (CanCan, SquareWisdom) #8

9×9 Diagonal Kendoku X for Wednesday, October 15, 2008. CalcuDoku for Wednesday, Oct 15, 2008Difficulty: BRAINClick on the puzzle thumbnail to access the puzzle. Tweet 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 […]

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CalcuDoku

Time for another “vanilla” Kendoku puzzle, also known as CalcuDoku. 6×6 Kendoku for Tuesday, October 14, 2008. CalcuDoku for Tuesday, Oct 14, 2008Difficulty: BRAINClick on the puzzle thumbnail to access the puzzle. Tweet The Reduced Operators version of CalcuDoku is here. These puzzles are also available to newspapers, magazines and other publishers. Be the first […]

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Daily Kendoku (CanCan, SquareWisdom) #6

Another brand new variety for you – Non-Consecutive Kendoku So, in addition to all Kendoku rules, there is one extra: two adjacent cells MUST NOT contain two consecutive numbers. 8×8 Non-Consecutive Kendoku for Monday, October 13, 2008. (Non)-consecutive CalcuDoku for Monday, Oct 13, 2008Difficulty: THINKERClick on the puzzle thumbnail to access the puzzle. Tweet The […]

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