Hello everyone. We are some newcomers in this coin (and just got to know each other recently!), but we love Primecoin as much as you do. Since the fifth anniversary of Primecoin is approaching, we are planning to hold a game quiz to celebrate it.
It will be about guessing the Cunningham chain of prime numbers in the next block after UCT 1800 July 7th. One friend decided to donate some of his coins for prize. Rules are still under discussion. Please feel free to join us~
It's at the primecoin forum (under peercoin forum):
https://talk.peercoin.net/t/game-quiz-for-primecoins-fifth-anniversary-with-prize/8074/2