UNITE! - Puzzle Casual Game

Unite is the new addictive logic puzzle you brainiacs have been waiting for! The player's task is to strategically place blocks with different numbers on the board, so that three or more matching blocks will merge into one block of the next higher number. If you combine three or more sixes, they will merge into stars, which again merged, will clear a huge part of the board in an explosion.
Each merge will also reward you with coins, which can be spend to purchase power-ups that may help you in difficult situations. But there is no hurry. You can think as long as you want and continue to strain your brains whenever you got the time to play. Start Unite now and play completely for free!

But be warned, once you learned the mechanics, the game will keep you engrossed for hours and days!