Memory Improvement - Puzzle

Game designed for training your eidetic memory, best known as photographic memory. The game is simple and easy to play. For each match, the game picks a random gemstone color, and you've got few seconds to memorize the positions of those gems of the chosen color, then all gemstones go grey, now you need to remember and click on the gemstones that are the same color of the chosen color. One wrong tap and... bzzz! you lose all the progress. Each level up, you will make more points for each correct gemstone and you can compete with other players and compare your is score.