First, both players reveal who is involved in the battle.

If the fight continues, both players chose a card from their hand and reveal them simultaneously.

The initiating player then reveals one of the other two cards.

When requested, a player must reveal the number of cards in his or her hand.

Then each player reveals his next card, followed by a betting round.

The player could reveal cash or prizes with values far less than $1 million.

If this is to happen, the two players then reveal how much money each has spent on the spy.

It's amazing how much some players reveal if you just pay attention.

The first player to have all four of their sections revealed progressed to the final round.

He started offering lessons in the early 1970s, at a time when most players would only reveal their musical secrets to family members.