turns

The turn reverses a marble:

handedness

Unlike the path , a turn is handed — it’s not symmetric. This means it has left-handed and right-handed variants.

A roon’s background colour tells you its handedness:

• dark red roons are right-handed
• dark blue roons are left-handed
• black roons are symmetric

long turns

For moving longer distances we also have a variant piece, the long turn :

Bear in mind that the long turn needs a path or other roon placed in front of its middle section, or the will spill out.

lateral movement

We can use a turn to shift a marble left or right:

Again, we need to place a path in front of the turn to prevent spillage.

This works in a pinch, but it’s clumsy — next, we’ll look at a better way to move marbles left and right.

continue