No instruction or tutorial, so I had to guess what I can do.
Inappropriate music, I had to mute.
Bad sound, boom boom boom, please, my ears! I had to mute my computer.
I like the concept of the game but improvement must be done to give the player the envy to replay.

Music stolen from a will-known pirate game. The lack of instruction is frustrating. There was no indication I could move jems more than one space at a time, or diagonally, or really anywhere I want. It's a boring, repetitive game.