A free program for Android, by Mindmill Puzzle Games.

This is a collection of different block puzzle games, brain teasers, and tangram puzzles. The game is easy to play, but challenging to master. If you’re looking for a relaxing game to play after a stressful working hour or a game to play on the plane or during a long car ride, then this is the game for you. The gameplay is simple, but the challenge to master is quite difficult.

The gameplay is based on a block puzzle, where you need to drag and drop the blocks to erase lines and fill gaps. There are many different blocks to play with, each with a different shape. Some of them can be merged to fill and clear lines, while others can be moved to the left or right side to slide the puzzle. There are 12 boards to choose from, each with a different shape and size.