In a shocking turn of events, Schrödinger's Cat has discovered that it cannot be certain of its own existence in more than one possible reality. The cat's attempts at solving Sudoku puzzles are constantly thwarted by the Heisenberg Uncertainty Principle.
Maybe I'm a cat, maybe I'm not, but either way, I'll just eat some sushi.
Sudoku logic is a cat-astrophe, and I'm the purr-inciple culprit.
Catnip and cryptography: the purr-fect combination for a superposition.