It is indeed a simple but hard free block puzzle that you won't be capable of putting down. At Friv 4, to create markings and squares, combine box blocks on the 9x9 grid, that is familiar to all method for solving fans. Packet sudoku blocks made of cubes advantageously on the board to take down them and stop the board clean. Much fun!
Share a game with other players. In addition, you can also participate in some similar games such as Flappy Pumpkin.