Sudoku Sunday: Killer Sudoku for week 43, 2024

Are you ready?

The Killer Sudoku puzzle

Tips to solve

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

• There is only 1 combination for sum 4 to pencil in at the start. There's also a combination of 3 for sum 20, of which the 4 is already provided. This leaves a combination of 2 for sum 16. You know what that means!
• You can use the 45-rule on all three blocks in the middle column. 
• Pencil in the 8 open fields of the MRRC (Middle Row, Right Column). Start with the combination for sum 6, which only has 1 possible combination (the 4 is already in use in this block). The 6 in MRLC will help you defining sum 9 in MRRC. 
• Pencil in all the 8 open fields in MRLC. You can define sum 13 using line matching on the top line of this block.
• Using row matching on numbers 3, 4 and 5, you can pencil in the MRMC.
• Next, you can use column matching on the whole middle column. You now have the cross filled in, leaving only 4 combinations pencilled. 

The final solution

Done? Or want to sneak a peek?

Here is the solution to this Killer Sudoku puzzle!