Divisidoku
To attempt this Sudoku, you only need to know what it means for one number to divide another number. For example, 3 divides both 6 and 9, but it doesn't divide 1,2,4,5,7, or 8. More specifically we can say that the whole number n divides the whole number m whenever m divided by n is also a whole number.
What does that mean for the puzzle here? Well aside from the standard Sudoku rules where each number appears once in every row, column, and three by three cage, we have dashed lines between adjacent cells in a cage if, and only if, one of the two numbers in those cells divides the other. Keep in mind that since these dashed lines are placed whenever possible, a solid line indicates neither of the two adjacent numbers divides the other.
This is one of the many puzzle types which can be found in Math-Infused Sudoku, available through the American Mathematical Society.
Solution
High Quality PDF for Printing
What does that mean for the puzzle here? Well aside from the standard Sudoku rules where each number appears once in every row, column, and three by three cage, we have dashed lines between adjacent cells in a cage if, and only if, one of the two numbers in those cells divides the other. Keep in mind that since these dashed lines are placed whenever possible, a solid line indicates neither of the two adjacent numbers divides the other.
Solution
High Quality PDF for Printing
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