Mahjongg is a classic Chinese puzzle game where you select pairs of matching tiles to make them disappear. The objective (if you’ve never played) is to eliminate all tiles to clear the board. 

There are retail versions of Mahjongg for Windows Mobile, but there’s also a recently-updated freeware alternative called Smart Mahjongg from developer Christian Morawietz. The app is free for personal use and includes a range of features such as multiple layouts, undo, tile shuffle and game statistics.

Smart Mahjongg v2.0 requires the .NET Compact Framework 3.5 and is for touchscreen Windows Mobile devices only.