Hold'em table

K2 offsuit on the button 3-handed is a standard open; stealing the blinds with a 2.5x raise is profitable.

5-high offsuit is far too weak to continue from the small blind facing a button raise with the big blind still behind.

T5s is suited and getting a good price to call 150 into a 400 pot, so I can see a flop in position relative to the raiser. Folding is too weak here in a 3-handed game.

I have a flush draw with Tc5c and am out of position on the flop. Checking allows me to see the turn cheaply and assess the opponent's strength before committing more chips.

On a dry Q84 rainbow board facing a check from the big blind, a small c-bet with king-high and a backdoor draw uses my range advantage and can fold out better hands like weak pairs and ace-high. The 180 bet into 550 is cheap.

Calling 180 into a 730 pot gives good immediate odds with two overcards and a backdoor flush draw; folding would be too weak and raising has little fold equity against a likely c-bet.

I have no made hand on this paired board, and my opponent showed strength preflop and on the flop. Checking keeps the pot small and lets me see the river for free.

King-high has some showdown value, and a bluff is unlikely to fold out the many pairs the big blind called the flop with. Checking back takes a free river.

King-high has almost no showdown value, and the opponent's passive line suggests a capped range. Their river check was also a timeout fallback, and if they time out again against a bet they automatically fold. A two-thirds-pot bluff should take the pot often.

My hand is only ten-high with no pair or draw, and the opponent's river bet suggests strength. Calling 600 to win 1510 is not profitable with no showdown value.

Button open-raise with a suited, connected-ish hand to leverage position and initiative three-handed.

J8s is a marginal hand out of position against a button raise, and calling would likely lead to difficult postflop spots. Folding preserves chips for better opportunities.

77 is well ahead of a wide button open in 3-handed play, so a 3-bet for value and initiative works well; calling out of position is also fine, but 3-betting denies equity and builds the pot.

T6 suited is too weak to continue versus a large 3-bet after opening, especially with 650 more to call.

Standard button open with a suited hand to apply pressure on the blinds; J4s has enough playability in position.

84o in the small blind facing a button open with the big blind still to act is a clear fold.

A2 offsuit has sufficient equity to defend the big blind against a button 3x open heads-up, and calling preserves flexibility postflop.

With ace-high on a paired board and no meaningful draw, checking is the best low-cost option against the preflop raiser.

I have a weak draw with a jack-high and a backdoor flush draw, and the board is paired with queens. Checking keeps the pot small and lets me see the turn for free.

Ace-high retains useful showdown value on this paired board, while a turn bluff is likely called by kings, queens, and club draws that have strong equity.

A small river bluff credibly represents a queen or diamond flush and can fold out unpaired broadways that beat ace-high. The opponent's passive line makes a modest stab preferable to checking behind.

T9o on the button 3-handed is a standard open; raise to 2.5bb to pressure the blinds.

A♠K♣ is a premium hand that benefits from building the pot and denying the big blind an easy entry. A substantial out-of-position 3-bet applies pressure to the button opener.

8-5 offsuit is too weak to call a raise and re-raise out of position, especially with the button still able to act behind. Folding preserves my stack for better spots.

T9o plays poorly against a large small-blind 3-bet, even in position; it is dominated too often and realizes too little equity. Folding is the standard play.

Q7 suited has reasonable button equity three-handed and benefits from applying pressure to the blinds. A small open preserves flexibility while taking initiative.

J5s is suited and I'm getting decent pot odds to defend the small blind against a button open, so I'll call and see a flop.

AQs is a strong hand against a button open and a small-blind flat. A squeeze to about 11.5bb builds the pot while I have position leverage, and it can take the pot down right away.

Q7 offsuit is far too weak to continue versus a large squeeze after an open and call, especially with the caller still behind.

J5s is too weak to continue against a large 3-bet out of position, and I don't have the pot odds or playability to justify calling.

J5 suited is a reasonable blind-vs-blind open from the small blind; raising to 3bb applies pressure and takes the initiative, rather than limping out of position.

Q3 suited is too weak to defend against the small blind's raise, even heads-up.