The rules of POGs and our Cryptogs game:
- The players each contribute an equal number of pogs to build a stack with the pieces face-down, which will be used during the game.
- The players take turns throwing their slammer down onto the top of the stack, causing it to spring up and the pogs to scatter. Each player keeps any pogs that land face-up after they've thrown. This transfers ownership of the ERC721
- After each throw, the pogs which have landed face-down are then re-stacked for the next player.
- When no pogs remain in the stack, the player with the most pogs is the winner.