The objective of the game is to place the wood blocks in the panel such that they form a solid square frame, without any empty gaps. There are two modes of play: single-player and multiplayer. In single-player mode, you can choose to play with one or two players. In multiplayer mode, you can play with one or two players, and the game can be played on a computer, on a mobile device, or on the web.

There are two types of blocks: horizontal blocks and vertical blocks. Each block has a number of sides, which is equal to the number of rows and columns in the grid. The goal is to place the blocks in the panel such that they form a solid square frame, without any empty gaps.

There are two types of players: the computer player and the human player.