• How do they play?

A tight passive player in poker is one who plays a limited range of hands and avoids making aggressive moves. They typically only play premium hands and will often simply call, rather than raise, when entering a pot. After the flop, they tend to play passively, frequently checking and calling rather than betting or raising. They may also fold more easily when facing bets from more aggressive players. The tight passive player’s strategy is to wait for a strong hand and then play it cautiously, avoiding any confrontations until they are confident in their hand’s strength. In general, tight passive players prefer to avoid high-risk, high-reward situations and play a more conservative and predictable game.

• How to combat them?

To combat tight passive players in poker, you should use a more aggressive playing style because they fold a large part of the hands. Here are some tips:

1. Apply pressure: Since tight passive players are reluctant to make big bets or raises, you can apply pressure by betting and raising more frequently. This can force them to fold weaker hands or make mistakes.
2. Bluff: Tight passive players are less likely to call bluffs, so you can try bluffing more often when you think they have a weak hand.
3. Be cautious when they call: because they play a limited number of hands, you can expect their calling range to contain strong hands (even premium hands sometimes).
4. Be overly cautious when they raise: because these players tend to call decent and even strong hands, their raising hands usually contains only premium hands. If that’s the case, you should wait for extremely strong hands, and then apply maximum pressure since you know it will be hard for them to fold very good hands.

Remember, the key to successfully combating tight passive players is to be more aggressive, stealing pots often due to their high folding equity and their tendency to play passively and make conservative decisions.