All the bug talk had me still scratching. I reduced the middle three horizontal boxes down to a microbug that appeared to work just for them, but alas, the bug failed. Why? Because those three boxes can't be solved in isolation. They remain an integral part of the whole puzzle. Went back and this time instead of declaring the microbug, eliminated the microbug. The bug only works when the entire puzzle has been reduced down to two numbers per square except for that one square which has three possibles left. Confused? I'm still trying to figure out how Mr Ooijer went ng/ng when Dr Who couldn't, lol. The brain's a wondrous thing isn't it?
10 and stuck. For me, Hards are worse than Experts, because I refuse to guess on a Hard.