Mind Games

Join-three is a very popular game these days and so it is on Face-book. Bring your friends and compete for the highest score.
On a game plan you have different types of gems. They differ in color and shape. Goal is to gather set number of gems. To gather a gem, you need to have at least three of same type in a row. If you manage to get more in a row, you get bonus.
If you get five, it means a special bonus and the last gem becomes a bomb, which explodes in a next triad and destroys surrounding gems.
Sound is clear, however graphics is average. There are some bonuses and chain reactions that liven up the game.