Dead or Alive. LED Chess Set

This is a modern take on the traditional chess set, tweaked to meet the **LightItUp Challenge** goals and to make it even cooler ;).

Every piece contains a low-tech 'Gravity Switch' that powers an LED light only when the pieces are upright.
**When a piece is taken, or the King resigns, it is reclined and their inner lights goes off**. when stored, lights are off.

the LED unit is removable and standardized for every piece. it is run by a small battery, which is replaceable.
The entire LED Unit can be swapped out and substituted with pennies, to give the pieces bottom weight and balance.

The design of the set is modern and classic at the same time.
I love some of the modern designs as well as some of the 'thematic' ones, and some are outright gorgeous.
However, one issue that i often see is that they are not easily "playable", because the pieces are not obvious, so it takes some time to "learn" what shapes/character corresponds to what piece, and it might n