Gem Slider

From Absolutist:

Gem Slider for Windows PC is a new puzzle game on a board featuring lots of combinations. There are four different games in one, each game with four game modes and four skill levels. Enjoy improved graphics with lots of new features! The goal is simple - remove all the gems from the board, sliding them from the edges. Online contest for the best players. Different skill levels are available. This game is real fun to play and will help you spend a few hours daily. The goal is simple - remove all the gems from the board. In order to do this you have to slide gems from sides of the board. Click on any gem located somewhere along the border of the board and a new gem will appear close to it, this new gem will begin to slide towards the opposite side of the board. It will slide until it hits the board's border or another gem that has a neighbour gem along the line of movement of the sliding gem. If that gem doesn't have such neighbor the sliding gem will push it until it will hit the border of the board or some gem. If sliding gem joins group of three or more gems of the same type - all these gems disappear. Looks simple, but... Try it yourself and you'll have a lot of fun! This game is also available for Palm and PocketPC handheld devices.