Hold'em table

9s 3d is a weak, unsuited, disconnected holding that does not warrant an open from the button.

KJo is strong heads-up versus the big blind after the button folded; raise for value and to take initiative instead of limping.

Calling 200 into a 400 pot gives about 3-to-1 pot odds, roughly 25% equity needed, and 7-2 offsuit has about that much against a wide small-blind raise, so the big blind defends.

As preflop raiser heads-up, I have the nut spade flush draw plus two overcards on a wet board, so a semi-bluff continuation bet builds the pot and gains fold equity.

I hold only a pair of deuces with weak side cards against a flop bet of 400 into a 1000 pot, and the aggressive opponent could easily have a stronger hand, so folding is the safer choice.

QJo is a strong hand three-handed on the button; raising builds value, gains initiative, and can win the blinds outright.

Ace-queen suited is strong enough to 3-bet the button's open, which builds the pot with a hand that plays well postflop against a wide range.

Holding 4d 2h against a button raise and small blind 3-bet is an easy fold.

QJo in position against a small-blind 3-bet in 3-handed play has enough equity versus a wide 3-betting range for the 600 call at these pot odds, and position helps realize equity postflop.

I have only ace-high with no pair on a K-6-J board, so I take the free card and keep the pot manageable against a button who called my 3-bet.

Second pair on a king-high board against a preflop 3-bettor who checked is medium strength; checking back controls the pot, avoids a check-raise, and lets me realize equity in position.

I hold ace-high with a weak draw, so checking keeps the pot small and avoids bloating it out of position. The button also checked the flop and showed little interest in betting.

Second pair with a Q kicker is likely ahead after the 3-bettor checks flop and turn; a small bet gets value from QQ/TT and protects against overcard and straight draws.

I hold A-high with only a gutshot to Broadway, about 4 outs to one card, which is well short of the roughly 23% equity needed to call 800 into a 3500 pot.

Queen-three suited is weak, but calling 100 from the button is cheap with position in a 3-handed pot, so I'd rather see a flop than fold.

Getting 5-to-1 pot odds to complete the small blind against a single limper with J9 offsuit.

With 3d9h in the big blind and no amount to call, checking takes a free flop with a weak offsuit hand rather than building a pot out of position.

Check out of position in a three-way limped pot with Jack-high and weak backdoor equity.

With 9-high, no pair and no draw on a Q-high board in a 3-way limped pot, bluffing into two opponents has little equity or fold equity. Checking free keeps the pot small.

Checked to me on the flop with a queen-high board; I have a Queen plus a backdoor flush draw and the field checked twice, so a small continuation bet can take the pot down.

I hold J-high with minimal equity and no direct draws on a wet board facing a bet with a player still behind me. Easy fold.

With 9-high, no pair and no meaningful draw on Q-6-5, calling 200 lacks the equity needed against the button's flop bet.

Fold 42s on the button as it is too weak to open profitably.

Q5o has well over the 25% equity needed for a 50-chip call into 150 heads-up against the big blind, and limping lets me see a flop cheaply out of position rather than bloating the pot with a weak queen.

As big blind with no bet to call, checking is free and 98s is a playable suited connector, so I see the flop without adding chips.

With Q-high, no diamond and no draw on a monotone flop, I have little equity and no reason to build a pot; checking keeps the pot small and gets a free card.

I hold a made flush with 9d8d on a Td3d6d board, so I want to build the pot while seat_2 is still in with a check.

Q-high with no diamond, pair, or draw on a monotone Td3d6d board has very little equity against the big blind's flop bet.

Q3 suited on the button in 3-handed play is worth an open with position and suited playability, applying pressure to the blinds.

Q7 offsuit is a weak hand to call 200 more out of the small blind against a button raise, so folding keeps the loss small.

Three-betting 99 from the big blind against a button open for value and equity denial.

Q3 suited is far too weak to continue against a big blind 3-bet to 1000; calling 750 would be dominated and unprofitable even in position.

Seven-jack offsuit is weak but playable on the button against two blinds, so a small steal raise can win the pot immediately or leave me in position.

QJo is vulnerable out of position against a button open with the big blind still to act, making a fold the cleanest play.

K3o has enough equity against a wide button raise for the price in the big blind, needing only about 27% to continue heads-up.

I have a weak pair of 3s with a king kicker out of position; checking controls the pot and lets me realize showdown value cheaply rather than building a pot against the preflop raiser.

I have a pair of sevens with a Jack kicker, which is medium strength, and seat_2 checked with a strength message. Checking keeps the pot small and takes a free card.

I have trip 3s with a king kicker on a checked flop; betting the turn gets value from 7x and overpairs while charging diamond draws.

I have two pair, sevens and threes, with a jack kicker, which is strong enough to continue against a turn raise, but a call keeps the pot manageable without bloating it against a possible made hand.

I have trip threes with a king kicker on a dry river, losing only to rare full houses or ace-kicker trips, so a value bet sized to get calls from pairs is best.

I hold two pair (sevens and threes) and the 900 call is about 29% of the final pot, so calling is reasonable against a bettor who may be bluffing.