A free program for Android, by X Games Tube.

Block Puzzle Gem – Free Cube Sudoku Game is an amazing brain game that will challenge your mind, boost your logic skills, and sharpen your thinking. This game will help you improve your concentration, memorization, attention, and cognitive abilities. All of these can be achieved through the simple, yet fun, and engaging gameplay. You will find yourself addicted to this puzzle game and playing it for hours, even days. There are plenty of levels and challenges that you can go through. Every time you pass a level, you will get a hint. With the hints, you can figure out the missing blocks and get a complete picture of the puzzle. 

How to Play Block Puzzle Gem – Free Cube Sudoku Game

The objective of the game is to clear all of the levels. To achieve this, you have to solve the puzzles by placing the blocks in the right position. There are different blocks and each of them has a different weight. Try to place the blocks in such a way that the sum of the weights of the blocks is equal to the weight of the cube.