Seabed 7x7 app for iPhone and iPad

Seabed 7x7 is a puzzle game. It has a simple screen. Players need to clear blocks in the 7x7 = 49 lattice generated by the system.
First the game will generate three blocks on the board, after the player moving boxes, some new boxes will generate in the blank space. 6 small boxes below the lattice will display the next step generated. After the player moves a block, if there are four or more than four blocks of the same type connected in a straight line, the system will eliminate these boxes (You can match vertical, horizontal or diagonally). If the blocks has been eliminated, the system does not generate the new blocks. Continuous elimination of the blocks will let players get more scores. When the player gets more and more scores, the game will be more and more difficult. If the spaces are filled blocks the game is over.