| Are Killer Sudoku rules hard? To this end, we may share information about your use of our site with our trusted social media and advertising partners | As we know from the rules, each block, row or column shall contain all numbers from 1 to 9, making it 45 in total |
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| Although solving Killer Sudoku online seems a bit harder than classic sudoku, we made it accessible for players of all skill levels | Killer Sudoku is a fun twist on the classic sudoku for those of you seeking something new and challenging |
| This way, the number puzzles are great for both beginners and advanced Sudoku solvers | |
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| Daily Killer Sudoku sessions are said to help you train your brain, improve memory, concentration and logical thinking | The sum of all numbers in the left column is equal to 45 |