What is a 3-Bet?

Pre-flop

1 Bet = Big Blind

2 Bet = Raise

3 Bet = Re-Raise (Second raise, going over the top of the first raiser)

4 Bet = Re-raise of a Re-raise (3-Bet)

Cold 4 Bet = When the 4-Bet comes for a player entering the pot normally a nutted hand

On Flop  we have the following

1 Bet = Raise

2 Bet = Re-Raise (Second raise, going over the top of the first raiser)

3  Bet= Re-raise of a Re-reraise

<6% only re-raising premium holdings

8%-9% Some bluff in there 1 in 4 times a medium hand

>10% Lot of bluff

>13% Hard to be +EV

3-bet-rang