This is a game I built in 1.2.5 Minecraft. It is based off of a game called bejewled, where you need to remove rows of gems in order to keep them from reaching the top of the board. You need to align at least 3 of a color in a row to remove them. It does not go diagonally though.

Download:
http://www.mediafire.com/?dld3vor66bjf8ad