This channel is now available in the Roku Channel Store. Visit www.rokuguide.com/channels/tangrams for more information.
Quick Look: Tangrams is a puzzle game where the object is to make multiple geometric shapes form a designated shape. There are instructions on the screen to assist you in moving the various shapes around. There are currently 16 puzzles available.
The game is compatible with the following Roku models: Roku 2 HD/XD/XS, Roku Sticks, Roku 3 and "2015 Roku 2". And maybe - just maybe - model #2400 of Roku LT.
Tangrams - beta on Roku Forums page