Button bets 40, which means that he raised and if small blind or big blind make it 100, then they made a 3bet. Let's assume that we are on blinds 10/20.
Putting big blind preflop is treated as a bet. 3b NAI = 3b non all-in = 3bet with chips – a situation when a player 3b but not all-in (he has some chips left)ģb = 3bet = reraise – A situation when a player raises over someone else’s raise.