價格：免費
檔案大小：19.5 MB
版本需求：需要 iOS 4.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
This is a simple skill game that helps you think ahead.
Keep a watch on your future moves, every time you move.
There is only one rule, viz. when you cross over a gem vertically or horizontally, it leaves the slot.
You win when you have just one gem left on the board.
A few trials will shake up your brains.
And then you are sure to win.
支援平台：iPhone, iPad