Can you crack Killer Sudoku's mathematical twist? The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each number from 1-9. In Killer Sudoku, the digits in each inner ...

Sudoku is not just another pastime unless you are a genius. It’s like the Rubik’s cube but with numbers. Some people enjoy the challenge. Some people dread the difficulty. But with practice, you can ...