Hi Pablo. Here are the basic rules. I prefer Crazy Pineapple but both are fun.
How to Play Pineapple Poker
Just as in Hold'em, the two players to the left of the dealer post blinds or forced bets before the deal, but this is where the similarities end—at least for a while.
Instead of being dealt two hole cards as in Texas Hold'em, each player gets three hole cards to begin in Pineapple Poker.
Now comes the betting round. If you're playing regular Pineapple, every player discards one of his three hole cards. Now everyone has only the regular two hole cards they would have had in a Texas Hold'em game. Play continues just like in Texas Hold'em. Hand values are a little inflated, but nothing too crazy happens.
After the betting is complete, the flop is dealt—five community cards face up on the table—and another round of betting begins.
The "Crazy" in Crazy Pineapple
Here's where it gets "crazy." In Crazy Pineapple, players have held on to their three starting cards up until this point. After the second round of betting is completed, this is when players can discard one of their three cards. Having seen how the flop hits their hands, players can make far better decisions about which two cards to keep and which one to throw away.
This makes for big hands, big pots, and big bad beats. That ought to keep the boredom away.
From here on, the game is identical to Texas Hold'em. The turn is dealt, a round of betting happens, the river is dealt, there is a final betting round, then there's a showdown if anyone is left. Players can use any combination of the two hole cards in their hands and the five board or community cards on the table to make the best hand, and the best hand wins the pot.