Blox

Place similar colored gem blox together to remove them all from the board to solve the puzzle.
This devilish and addictive online puzzle game is hard to put away once you get started. The aim of the game is simple, put two or more similar colored gem blox together to remove them from the board. The goal is to remove all blox from the board to solve the puzzle and get to the next level.Always, move blox in correct order to avoid getting stuck. If you get stuck, click the Retry button to restart the game. Elevators are quite useful during the game, place a blox on an elevator to move it upwards. You will learn the game in 10 minutes, but play it for hours....Enjoy!
Game Controls: Left click on a blox with your mouse, hold down the left mouse button, and drag to left or right. Blox cannot be moved upwards. Place similar blox together to remove them.

http://www.tutorialsto.com/flash/games002/blox.swf