I've just started to solve the Zero Killer Sudokus. Does anyone have a few tips or strategies they've learned? Sometimes I can solve the hard ones and sometimes I feel like there is a lot I'm missing. Thanks!
I've just started to solve the Zero Killer Sudokus. Does anyone have a few tips or strategies they've learned? Sometimes I can solve the hard ones and sometimes I feel like there is a lot I'm missing. Thanks!