CalcuDoku: 250 Easy 8x8 Square Wisdom Puzzles (KenDoku)

CalcuDoku is a mathematical and logical puzzle loosely similar to Sudoku. The objective is to fill the grid in with the digits 1 through 8 such that:Each row contains exactly one of each digit.Each column contains exactly one of each digit.Each bold-outlined group of cells (block) contains digits which achieve the specified result using the specified mathematical operation: addition (+) , subtraction (-) , multiplication (×) , and division (÷) .Unlike Killer Sudoku, digits may repeat within a block. Read more Continue reading Read less