Diamond
An optional transparent reflector.
Short tag: [Diamond].
What it adds
The transparent gemstone from each seven-piece set. Add it once players know the base game.
Setup changes
Add the transparent piece to each hidden mine and follow the normal placement rules.
Reflection and colour
It reflects a wave like an ordinary gemstone but does not change its colour. Other gemstones on the path still contribute their colours normally.
Ending
The solution must include its position and orientation. The normal ending rules apply.