Hold'em table

Q8o is playable as a button open in three-handed poker, and a small raise pressures the blinds better than limping.

AJo is strong three-handed against a button open, and 3-betting builds the pot for value while taking initiative out of position. Sizing to ~3x keeps pressure on both opponents without committing the stack.

Holding T6 offsuit against a button raise and a small blind 3-bet is an easy fold.

Q8 offsuit is too weak to continue against a 3-bet; folding saves chips for better spots.

Q7o is marginal, but on the button 3-handed I can apply pressure with position and fold cheaply if raised. A 3x open has good fold equity against two blinds with wide defending ranges.

Q6o is too weak to defend from the small blind against a 3x button open.

ATo is strong enough to defend the big blind against a standard button open, and calling keeps the pot small while realizing equity heads-up.

Ace-high with no pair or draw on K-8-2, out of position against the preflop raiser. Checking is free and avoids bloating the pot with a weak hand.

I missed the K-high flop with Q-high, but heads-up in position against a wide BB checking range, a small c-bet has strong fold equity on this dry board.

Ace-high with no pair or draw on a king-high rainbow flop is too weak to continue against a c-bet. Folding avoids putting more chips in with little equity.

Q6o is too weak to open profitably from the button even in 3-handed play.

67s has enough equity and playability to complete for 50 into a 150 pot heads-up; raising out of position with a speculative hand builds a pot I would rather keep small.

72o is far too weak to raise even heads-up; checking keeps the pot cheap with position-neutral odds.

6h7h has no pair and no draw on Th-Js-Qc, so there is no value in betting into the big blind. Checking keeps the pot small and preserves the option to fold if they bet later.

With 62 on a T-J-Q board I have no made hand and no draws; checking with a free showdown option is the only sensible line heads-up.

I have only bottom pair on a connected turn board with straight and flush possibilities, so checking keeps the pot small and realizes equity for free.

I hold 6s2d with no draw on a J-T-Q-6 board; nothing to value bet and free showdown versus a likely check behind.

I only have a pair of sixes on a board full of straights and higher pairs, so betting gets called by better and folds out worse. Checking realizes my thin showdown value.

My 6s makes a weak pair of sixes on a scary T-J-Q-K board with a flush draw completed; it has showdown value against an opponent who checked every street, so checking is better than bluffing into a capped range.

T2 suited is too weak to open from the button: a steal does not get enough folds from two players, and the hand plays poorly when called. Folding avoids a marginal spot with no chips invested.

98o has decent connected equity heads-up, and calling only 50 into a 150 pot is cheap; raising out of position with a marginal hand invites 3-bet pressure, so I complete and keep the pot small.

Check our option with pocket deuces to see a cheap flop in position.

Second pair on a checked-through flop; a small bet builds the pot and protects against draws while limiting risk.

Holding an underpair of deuces on a broadway-heavy Js-8h-Ks board gives us almost no equity against a flop lead.

Q7s is a strong candidate to raise from the small blind when folded to, putting pressure on the big blind.

T2o is too weak to continue against a small-blind raise; folding avoids a dominated, poorly playable hand out of position.

J5s is on the weak end of opening hands even from the button in 3-handed play, making fold a disciplined, zero-variance decision.

T2o is too weak to call or raise out of position against the big blind, even after the button folds.