A free app for Android, by Vyaznikov Evgeniy.
Tangram is a classic logic puzzle game for your Android devices. It's very simple, yet very addictive. The gameplay is based on collecting all the pieces of the same color to create a complete figure.
You need to place the blocks to complete the puzzle. You can rotate the blocks, flip them, or move them. Every move you make will change the position of the blocks. It's your job to place the blocks in the right order to create a complete picture.
The game has an unlimited number of puzzles, and the gameplay is based on solving them. So the more you play, the better you'll get at it.