I loved doing Araucaria'a puzzles. They were fiendish, funny and left me with a huge sense of satisfaction and achievement when I completed one.
I particulary enjoyed his themed puzzles especially the literary ones. I remember being completely blown away by one puzzle based on Charles Dickens, and another on Jane Austen which were just so tricky to solve, but once completed, I could only admire the man's genius at compiling them.
Boxing Day just isn't going to be the same without an Araucaria double grid special.
Rest in Peace.