Me vs. Puzzle Quest
I have played a lot of games in my day. I have been up against some harsh AI, impossible modes that are there more for amusement and "wow" factor than any real gameplay challenge. Of all the puzzles I've solved, the quests I've completed, the monsters I've fought, never has the computer been more hell-bent on humiliation and frustration, more dead-set on my swift and painful defeat, than it is when I play Puzzle Quest.
Gah.