A is join into the game. UNFORTUNALY, the game is really dangerous. The game is Russian roulete, but very complex.
3 bullets are put into the 6-revolving chamber. Before put the bullets into the chamber, A is blindfold to let A don't know which chamber has the bullet. After put the bullets into the chamber, they take a shot. Luckly for A, A is survive.
After the first round, since A survives, they give A a chance. A has 3 choice:
-Choice 1: tell them spin the chamber randomly before the second shot;
-Choice 2: tell them to arange the bullets in the different position then spin the chamber randomly before the second shot ( but A has to be blindfold );
-Choice 3: tell them no spin the chamber and hope for the best.
Which choice A must choose to has the greatest chance of surviving?