Brick Classic is the most famous classic puzzle video game and has inspired countless thousands of clones and variations. Brick Classic HD is inspired by the classic design from over 30 years ago.I bet everyone knows the rules of the game, so I do not have to explain here how to play, but there are few things you should be aware of: All of the block are capable of single and double clears. I, J, and L are able to clear triples. Only the I has the capacity to clear four lines simultaneously.Thank you for using our game, we take great proud on running this old but so addicted game that took millions around the globe.