I've attempted this riddle on and off for several months now. I showed it to both my roommates, and they both figured it out in a matter of minutes. One of my roommates made a single comment: "Think about the name of the game, and stop thinking so much about numbers." That was all it took for me to see the petals around the rose. I'm definitely going to spread the word about this game.
Not the answer, though, of course.
