The Pirate Challenge is currently available to a limited number of players but in the future we may open it up to everyone else.

The Challenge's grand prize is 200 gold vouchers!
1. Guess which cards have rewards.
2. The farther you progress in the Challenge, the bigger the rewards.
3. One of the four cards is hiding two crossed swords on a purple background (it's the black mark). If you choose this card, the Challenge ends, and you lose all your rewards.
4. You can claim your rewards and quit the Challenge whenever you want, but the next time, you'll have to start from the beginning.

Important note: The Pirate Challenge is all about random selection and which card you pick out of four. You get one free attempt each day. Every additional attempt on the same day costs extra diamonds.

Rewards probability:
Stage 1: Coins - 32%, Boosters - 32%, Vouchers - 16%, Diamonds - 0%, Black Mark - 20%;
Stage 2: Coins - 31.2%, Boosters - 31.2%, Vouchers - 15.6%, Diamonds - 0%, Black Mark - 22%;
Stage 3: Coins - 30%, Boosters - 30%, Vouchers - 15%, Diamonds - 0%, Black Mark - 25%;
Stage 4: Coins - 28.8%, Boosters - 28.8%, Vouchers - 14.4%, Diamonds - 0%, Black Mark - 28%;
Stage 5: Coins - 28%, Boosters - 21%, Vouchers - 14%, Diamonds - 7%, Black Mark - 30%.