A free app for Android, by Jonatan Resa Fernandez.
The Merge Block Puzzle Game for Adults is a challenging, fast, and fun game that will help you train your brain, sharpen your mind, and improve your concentration and memory.
You are given a grid of blocks to merge, with the number of blocks increasing as you get closer to completing the puzzle. The goal is to get to the end of the game and complete the puzzle by merging all the blocks.
There are two different puzzle modes to choose from. You can play the easy mode, which contains four grid sizes, or the hard mode, which contains eight grid sizes.