There are some games widely played 
in the routine world of gambles, 
roulette, quiz show and the sports exercises.  
The object of the game is to get the highest score 
among all of the players, from one or two chances of
sampling.  A three-player game of ^^ ^^ Risky Exchange",
which reduces to a three-player continuous game 
on the unit cube, having symmetry between players' 
roles, is investigated, and the optimal strategies 
for the three players and the winning probabilities 
they can get in the optimal play are derived.