If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
You're a pirate with a treasure map in a deserted castle! To get to the vault with the treasure chest, you must unlock rooms by forming squares with symbols that are four of a kind. How quickly can you match the symbols before time runs out? Earn precious gems as you go, and keep your eye on the prize at the end!