Hold'em table

K5 suited on the button in a 3-handed game is a standard open; raising builds the pot in position with a hand that has flush potential and fold equity.

ATo is strong enough to continue versus a button open in a three-handed pot. Calling keeps the hand playable without bloating the pot out of position.

J9o is weak facing a raise and a call in a 3-way pot; not worth continuing with two players already committed.

Ace-high with no pair or draw on a dry 5-6-9 flop has little value to lead into the preflop raiser, so I check and realize equity.

As the preflop raiser heads-up, I c-bet half pot with bottom pair plus a king overcard; it folds A-high and underpair hands and gets value from worse pairs, while I can release if raised.

Ace-ten offsuit has no pair and no draw on 5-6-9, so calling 400 is unprofitable against a preflop raiser who continues. Folding preserves the stack for better spots.

43 offsuit is too weak to call or raise from the button in a three-handed pot, so folding preserves chips.

Cheap to see a flop heads-up against the big blind with a live hand like T8o.

Q5 offsuit is weak, but checking from the big blind costs nothing and keeps the pot small with a marginal hand against the limper.

Dry flop, both players checked/limped in weakly; a small continuation bet has good folding equity, and my hand has backdoor straight/flush outs if called.

Q-high with only a gutshot to a 3 gives far less than the ~26% equity needed to call a half-pot bet. Folding is clearly best with no pair, no flush draw, and position disadvantage.

Button steal opportunity in 3-handed play with a suited hand, no one has entered the pot yet.

TJs is a strong 3-bet candidate from the SB against a button open; building the pot with position on them and applying pressure is better than calling out of position with a suited connector.

K6o is too weak to continue against a button open and small-blind three-bet, especially out of position. Folding avoids a dominated spot with poor equity.

J6 suited is weak facing a 3-bet to 800 with 550 more to call; not worth continuing out of position value.

2s6h is a weak offsuit hand from the button facing a full BB call; folding is clearly the best EV play with no fold equity established.

Button folded, so I only need 50 more with an ace against the big blind. A2o is too weak to raise out of position, but the price is good enough to see a flop.

I hold pocket queens in the big blind with a limper; raising for value builds the pot while I have a strong preflop hand against a single caller.

A2o is too weak to continue out of position against a 4x raise; it is often dominated and has poor playability.

87s is a playable suited connector on the button, so I open to 2.5bb to take the initiative and play the hand in position rather than limp.

J9 offsuit is weak out of position facing a button raise with BB still to act; folding is the standard play.

J6 offsuit is too weak to defend against a 2.5x button raise even at the price of 150 more; dominated hands and poor flop playability make folding the highest-EV line.

K3o is marginal but cheap to see a flop from the button in a 3-handed pot; calling keeps costs low without committing further.

T6o is weak, but completing for 50 into a 250 pot gives good odds in a likely three-way limped pot, and folding the small blind's cheap completion is overly tight.

T9o is too weak to raise into two limpers, and checking is free as the big blind, so I take the flop multiway.

I only have a gutshot (a nine makes 6-7-8-9-T) and T-high in a three-way pot; checking keeps the pot small and lets me continue cheaply if I improve.

I have only a gutshot and two overcards in a three-way pot, so checking is better than betting into two opponents.

King-high with no pair or draw on a wet-ish flop; checking behind is best since I have no equity edge to bet for value or protection.

I hold T6 with only a double gutshot (needing a 4 or 9) on 8s7s5c2h, no flush draw, in a three-way pot where everyone checked the flop. Checking keeps the pot small and lets me see a free river or fold cheaply to aggression.

I have only a gutshot with T9 on 8752 and no pair or flush draw. With two opponents still in and no bet facing me, checking is the highest-EV line.

King-high with no pair or draw on a wet board; checking behind is best since both opponents have checked twice.

I hold only ace-high (T6 misses the board entirely) after a fully checked-through hand; with two opponents still in, betting is unlikely to win without a showdown and I can only lose chips by raising.

I have ten-high with no pair, flush, or straight on a three-spade ace river. With two opponents still in and no fold equity worth chasing, checking is the only sensible line.

King-high with no flush draw completed; no reason to bet into two opponents who checked, just check back.