The game, D Blocks 2, is very interesting and challenges your logical thinking. In this game, boxes with arrow on them, shows you in which direction can you erase the entire line. There are some certain limits in click times, in another word, in every stage, the times for your move is limited. You have to solve the problem only within the number. In this case, mind you step before you click on the boxes. This puzzle game can be found on www.flash-game.net. Good luck!