No advanced techniques were harmed in the solving of this "expert" puzzle.

lots and lots of pairs.

dng. easy "expert"

Done

ng/ng

go

done

go

How was this an expert?

done, with greens

certainly not an expert - a medium at best

G & G (Greens & Guess)

bzikofski, i think we'd have to go over a live example together in real time to get anywhere.

hurshy, i just realized where's the error. the avoidable rectangle must not have givens.. only candidates

yeah you can't use the grey ones in it

go

Today's puzzle was a lot more fun than yesterday's!

done

Go

Done with greens

Done.

done

No green, no guess. The choke point is close enough to the end to work out the contradiction in your head.