Another Quick Tip To Improve Your Killer Sudoku

This puzzle from dailykillersudoku.com is over 10 years old but has an average solve time of well over an hour - despite being rated only 4/10. This grading is horribly misleading, this is a brute. Give it a try and then take a look at one way of making logical progress.

Видео Another Quick Tip To Improve Your Killer Sudoku канала Cracking The Cryptic