It looks easy, but you can't! ?
The new classic puzzle game that’s addictive once you play it!

It's easy to operate, tap on the adjacent jewel to change the color of selected jewel and top, bottom, left, and right jewel.
If you can match all the jewels with blue(diamond), the game is over!

Simple controls but unexpectedly difficult can also be expected as training for adults and elderly brains.
Use it as a time killer or as a brain teaser!

The game features two levels: a pre-set level that solves 30 questions pre-designed and a random mode that solves a randomly generated question.

In random mode, you can select between 3×3 squares and 5×5 squares, so you can enjoy the difficulty of your choice.

Of course you can play all features totally free.

If you like diamonds, rubies and jewelry, you must also love it!