價格：免費
檔案大小：5.1 MB
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Each block has two states, a free state (white square) and an occupied state (color square). The initial state is all free. When the square is clicked, the current state of the square will change to the opposite state, namely: discoloration. At the same time, the state of the block adjacent to the block (the block that does not contain the diagonal adjacent) will also change, and the game ends when all the blocks become occupied. Try to challenge the difficulty of more orders.
支援平台：iPhone