Select gems of the same color in groups of at least 3 pieces to eliminate them.
It works offline.
This game can be installed on the Chrome browser or open source version Chromium, without an google account on webstore. Many operating systems are supported: The BSD family, GNU/Linux, Mac OS X, Android, iOS, and Windows.
For example, if you want to install Chromium on OpenBSD, write these commands:
$ export PKG_PATH=ftp://your.ftp.mirror/pub/OpenBSD/5.7/packages/architecture for your machine
$ sudo pkg_add -v chromium-40.0.2214.115p0
Happy Gaming 😀