Both missionaries and cannibals must cross the river safely. Boats can ride up to three people. If the number of cannibals is more than the number of missionaries anywhere, missionaries will be eaten.
Pick up the stones each other. The person who picks up the last one wins the game. However, you can not pick up more than twice the amount of stones your opponent has taken.
Pick up the stones each other. The person who picks up the last one is lost the game. You can not pick up more than 3 at a time.