So I've been playing Sudoku for a while, but this is the first time I've looked at this site. It seems I've figured out a lot of the strategies that you all have assigned names to in order to talk about them more clearly, but I have no idea what you guys are talking about!
I'm looking for general tips on solving the Hard level puzzles for someone who can do the Medium puzzles in 7-12 minutes. The techniques I use on the Medium just don't seem to be enough and I can't figure out any new ones. And please, don't use the names of the techniques because I will have no idea what you're talking about! Thanks!