Hold'em table

J7s is a playable button open in three-handed play, so I raise to 2.5bb rather than flat the big blind.

2d7h is one of the worst hands in hold'em; facing a 2.5x raise with a dominated, unplayable hand, folding is clearly correct.

7-3 offsuit is too weak to defend against a button open, even at a small sizing.

Complete the small blind with a suited 9-high hand and defend heads-up at a favorable price.

T5 offsuit is too weak to raise out of position against a limping small blind, and checking is free so there is no reason to fold.

With only a weak pairless hand on an ace-high board in a limped pot, checking preserves equity and avoids building a pot out of position.

Middle pair with a weak kicker and an ace on board is not strong enough to bet for value into the small blind's check; checking controls the pot and realizes showdown value.

With no made hand or meaningful draw after the passive flop, checking preserves equity and avoids bluffing into a likely ace-heavy range.

I have second pair with a weak kicker on an ace-high board, and the opponent has shown no aggression. Checking controls the pot and avoids value-owning myself.

With 9-high on an ace-paired board and no showdown value, checking is preferable to risking a bluff into an opponent who has shown willingness to continue.

I have trip tens on the river and the pot is unraised, so a pot-sized value bet extracts chips from weaker tens, aces, and floats.

With nine-high on a paired ace board, we have no showdown value and no credible raise bluff against this small river bet.

7-5 offsuit is a weak button holding with poor playability; folding avoids entering a marginal multiway pot.

Pocket eights is ahead of the big blind's range heads-up after the button folds, so I raise to 3bb for value and fold equity rather than just completing.

Q3 offsuit is dominated against a 3x raise heads-up; calling 200 more with a weak hand has poor equity. Fold.

Q8o is a marginal but playable button open in three-handed poker; a small raise uses position and fold equity rather than limping a dominated offsuit hand.

53o is a weak hand facing a 2.5x raise out of position; folding is clearly best.

7-4 suited is too weak to defend against the button's opening raise, especially out of position.

56o is a weak hand out of position with two players already in; folding is cheapest.

9-3 offsuit is too weak to defend from the small blind against the big blind.

Q6 suited is too weak to profitably enter from the button under unknown opponent tendencies, especially with shallow positional information.

Button folded, so this is blind versus blind and K7o has enough equity to take the initiative rather than only complete. A small raise to 300 builds the pot while ahead and can fold out weaker hands.

T4 offsuit is a weak hand facing a 3x raise heads-up; folding is clearly best.