Mental Shortcut for Problem-Solving
Puzzle 17 of Yoga Hard Pack
Question is: Mental Shortcut for Problem-Solving
and the answer is: HEURISTIC
Word Meaning:
HEURISTIC — (of an approach to problem solving, learning, or discovery) That employs a practical method not guaranteed to be optimal or perfect; either not following or derived from any theory, or based on an advisedly oversimplified one.
Definitions from Wiktionary.