價格：免費
檔案大小：24.7 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
This is a simple but challenging puzzle. To solve it you have to put the numbers in the tiles in order, from 1 to 9.
To change the number in the tile just tap it to highlight it and the use the "+" and "-" buttons to increase or decrease the number. The numbers will not decrease lower than 1 or increase higher than 9.
The catch: When you change a number in a tile, the tiles to the left, right, top and bottom of it will also change.
Try to solve it in as few moves as possible.
支援平台：iPhone