Mistake: Using force instead of finesse.
Correction: This is rule number one. Metal puzzles are designed so that the correct path requires almost no pressure. If you're pulling, bending, or straining your fingers, you are on the wrong path. Stop. The solution is always a gentle slide, a twist into alignment, or a drop through a gap. Muscle is never the answer. Relax your grip and focus on finding the 'wiggle room' where the pieces have a tiny bit of give.
