Take as many coins of different value as possible. Give them to 2
players so that each of them has one and the same sum. Both players are
blindfolded. One player gives a coin to the other. He/she must change
it. Then they exchange the roles. They exchange the roles again and
again. All the time the players check up the work of each other. In a
fixed number of leads the game is over. The players move away their
fillets and count the money they have. If both players have the same
sums they had before the game started, both of them are winners.
Otherwise both players loose the game.
What Is My Name
Don't Imitate!
Bank Account