# Jade/Emerald mining

### From Dragons

The mining game consists in sequentially creating as many sets of Stones as you can. Each set must satisfy one of these four properties:- All stones have the same color and the gems all have the same shape
- All stones have the same color and the gems all have different shapes
- All stones have a different color and all the gems have the same shape
- All stones have a different color and all the games have a different shape

For example, in the picture below, Stone 1 and 2 are red hexagons. Stone 3 is black cube. Stone 4 is green Spiked. Stone 5 and 7 are green hexagon. And stone 6 and 8 are green cube.

Example combinations:

- Same Color, Diff Shapes : 4/5/6, 4/5/8, 4/7/6, and 4/7/8
- Diff Color, Diff Shapes : 4/1/3 4/2/3

If we had a red cube, we could do red cube, black cube, green cube (same shape, diff color).

A stone can only be used 5 times and then it is "destroyed" (it disappears). In this example, all of the combinations use stone 4 and a stone only gets 5 uses, so it will disappear on the 5th use and you won't be able to do the 6th combination, so plan ahead.

Once 8 stones have been destroyed, you get a free play. If you destroy more than 8 stones for the free play, any excess destroyed stones are carried over to the next free play. For instance, if you already have 7 stones destroyed and you destroy 3 stones, you will get a free play and 2 stones will be added to your next free play (you'll start at 2 destroyed instead of 0).

The easiest way to play is to use hotkey mode. In hotkey mode, to include a stones in a set use the "G" hotkey, and to finalize a set use the "F" hotkey.