1515 is an addictive puzzle block games. Put your puzzle skills to the test with this exciting title. We dare you to try and put it down. The concept is simple - on a 15X15 board, combine numerous puzzle blocks and combine it!. By strategically placing your blocks that creates a line will automatically clear it. There is no time limit, no colour matching and there is no 3 matching combination blocks. The blocks are all randomly generated which give you unpredictable blocks being given.