For Machizzle players who are trying to get the Fast Thinker achievement in game, this guide will help you out.
Fast Thinker Achievement
For those who are having trouble getting the Fast Thinker achievement, note that the description is misleading. There is no “Lava Spiral” puzzle in the game. You have to solve #22 “Spiral Vortex” in under 3 minutes to get the achievement.
Solution to the puzzle looks like this: