No-Limit Hold'em poker rules

Two hole cards, five community cards.

Players

2 to 10

Betting

No limit

Betting rounds

4

How a hand of No-Limit Hold'em goes

1. 1
   Preflop
   Each player gets 2 down; a betting round.
2. 2
   Flop
   Three cards on the board; a betting round.
3. 3
   Turn
   One card on the board; a betting round.
4. 4
   River
   One card on the board; a betting round.

Who wins