Hi everyone. new to the forums, and relatively new to sodoku.
Ive completed medium difficulty puzzles and skipped to advanced/extreme ones, but now im stuck.
Ive used some advanced techniques for eliminating, but I still don't see which techniques I have to use to finish the rest of the puzzle ive attached.
Im also kind of confused on w wing, swordfish, jellyfish, unique rectangles, and whether they apply here.
Most of the online sites are absolutely terrible at explaining the EXACT way to follow a procedure, especially what DISQUALIFIES a certain method.
Please help me out