It doesn’t matter where you start. Just start.
https://www.killersudokuonline.com/iphone/player.html?puzzle=D35a0tq5927&year=2022This is marked as “Moderate” but I am finding it a right hit. The hardest I’ve had for ages on this site.
Clicking on that link today leads to “Account suspended”. The webmaster clearly needs to put another $ in the meter.What am I going to do today?