Sudoku Sunday: Killer Sudoku for week 51, 2024

Another Sunday, another Sudoku puzzle.

Click on the image to open it in a new tab so you can download or print! Or just screenshot the page for easy editing. 

The Killer Sudoku puzzle

Tips to solve

Are you stuck? Here are a few pointers to get you going. 

• There are 6 combinations you can pencil in straight away: for sums 3, 4, 6 (combination of 3) and 17
• Use Row matching to fill in the number 3 in Bottom Row Left Column and complete the combination.
• In Bottom Row Right Column, there are 2 combinations for sum 15. There are only 2 possible combinations of numbers that make 15. With the given 6 in TRRC, you know which combination belongs in which sum.
• This also leads you to know which numbers to fill in for the sum 19 in MRRC, followed by penciling the sum 5 in TRRC.
• In MRRC, sum 8 only has 1 allowed combination left. You can fill this in, because you know in which field the 3 is not allowed to go using the row strategy. It allows you to fill in the combination for sum 6 in the Left Column.
• With only 3 empty fields left in BRRC, you can fill in the remaining numbers. Start by figuring out which ones are still needed and use Row matching to fill the bottom 2. You know where the last number goes.
• You can now fill in both sums of 3 in the Right Column. This allows you to pencil in sums 9 and 15 in Top Row, followed by filling in sum 7.
• Fill in the numbers of combination of 3 for sum 13 spanning over MRRC, BRRC and BRMC. This allows you to fill the sum 15 spanning across TRRC and MRRC.
• The last 2 numbers for the Top Row Right Column are 7 and 9. You can deduce where the 7 can't go, which means you can fill in the sums of 10 and 13. 

At this point, you have something in all the fields of the right column. Only 4 combinations are pencilled in, so take it away!

The final solution

Done? Or want to sneak a peek?

Here is the solution to this Killer Sudoku puzzle!