Hard Calcudoku Puzzles 6x6 Book for Adults: 200 Hard Calcudoku For Advanced Players - Paperback
by Alena Gurin (Author)
The book contains 200 Calcudoku puzzles 6x6 at the level of Hard. All riddles have only 1 solution. Each puzzle consists of a grid containing blocks surrounded by bold lines. The object is to fill all empty squares so that the numbers 1 to N (where N is the number of rows or columns in the grid) appear exactly once in each row and column and the numbers in each block produce the result shown in the top-left corner of the block according to the math operation appearing on the top of the grid. In Calcudoku a number may be used more than once in the same block.
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Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.
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