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Daily CalcuDoku

Solve a random Easy - Medium - Hard Japanese-type logic puzzle chosen from today's collection.

Apr 21 - Hard 6 x 6
© Kevin Stone

Help Show Answer New CalcuDoku Puzzle
Restart CalcuDoku Puzzle Print Check

Show mistakes when checking
Warn when leaving page
Auto-pencil marks


Today's CalcuDoku Puzzles

4 x 4 - Easy - Medium - Hard
5 x 5 - Easy - Medium - Hard
6 x 6 - Easy - Medium - Hard
7 x 7 - Easy - Medium - Hard
8 x 8 - Easy - Medium - Hard
9 x 9 - Weekly Special

BrainBashers CalcuDoku are available for syndication. Please click here for more details.


CalcuDokuNotes

  • Objective / Rules
    - Complete the grid such that every row and column contains the digits 1 to the size of the grid.
    - Each row and column contains each digit only once.
    - A cage clue tells you the answer after the cage values have undergone the specified mathematical operation.
    - The clue doesn't tell you which way around the digits occur, just the answer to the calculation.
    - A digit may appear more than once in a cage (which is different to Killer Sudoku).

  • Help
    Read the help/walkthrough page on CalcuDoku for a more detailed explanation.

  • Online Calculator
    We have provided an online calculator which might help you.

  • Keyboard Usage [only when your cursor is in the grid]
    Note: not all options work on all browsers.
    A = auto-pencil marks (or click the check box).
    CTRL + arrows = move around the grid.
    SHIFT + number = highlight all squares with that number [SHIFT+0 to clear].

  • Checking
    If you click 'Check' the system will check for incorrect squares. If 'Show mistakes when checking' is checked they will be marked in red. There are two types of error checked for:
    1. A single number that isn't the same as the solution.
    2. Multiple numbers that don't contain the solution number.

  • Uniqueness
    Each puzzle has exactly one solution, which can be found using logic alone and no guesses are ever required. If you think you've found another solution, then please double check the rules.

  • Legal Note
    BrainBashers CalcuDoku are our own creation and are not approved, sponsored nor endorsed by any other website, creator or company. They are provided on BrainBashers for the benefit of our visitors and the BrainBashers team makes no gain from placing them here.

  • JavaScript
    This game requires JavaScript to be enabled.

  • Syndication
    BrainBashers CalcuDoku are available for syndication. Please click here for more details.

 



 

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BrainBashers™ is a trademark. We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information you've provided to them or they've collected from your use of their services. For more information please view our privacy policy. By using the site you also agree to our terms and conditions.

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