Question 1

What is Gear Train?

Accepted Answer

A spatial-reasoning puzzle. Given the direction the first gear in a meshing chain turns, you pick which way the last gear turns · clockwise or counter-clockwise. One wrong answer ends the streak.

Question 2

How do I work out the answer?

Accepted Answer

Meshing gears always turn in opposite directions, so the direction flips at every gear. Count the gears: an odd number means the last gear matches the first; an even number means it is reversed.

Question 3

Does the size of the gears matter?

Accepted Answer

Not for this puzzle. Gear size changes how fast a gear spins, but the question is only about direction, which depends purely on how many gears are in the chain.

Question 4

Do I need to read any language to play?

Accepted Answer

Barely · the gears and rotation arrows are visual, and the two answers are clockwise and counter-clockwise. The labels are translated into all 25 languages as a helper.

Question 5

How does my progress save?

Accepted Answer

Your best streak is stored locally in your browser. Sign in to sync it across devices.