Killer Sudoku

Introducing the ultimate challenge for Sudoku geniuses: it's time to defeat the killer Sudoku! This software brings you a classic number puzzle experience, with a 9x9 grid evenly divided into 9 squares. Your objective is to place the numbers 1 to 9 onto the blank spaces, ensuring that no number is repeated in each row, column, and 3x3 square.

But that's not all - the blanks are also divided into groups by red lines called cages. Each cage will have a given number, and the sum of the numbers in that cage must be equal to the given number. To help you out, hovering your mouse over the given number will display the possible sums for your reference.

Using the number pad on the left of the grid, you can click on a number to fill in a blank. If you make a mistake, simply click the cross button at the bottom of the number pad to erase the number. Should you become stuck, click the Hint button under the grid to reveal one possible answer. It's important to note that each hint will add 100 seconds to your time, as indicated at the bottom left corner of the screen.

So, do you have what it takes to rise to the challenge of this indulging arithmetic game? Download the software and find out!