Hold'em table

75o is too weak to open from the button in a three-handed pot; folding avoids a dominated, low-playability hand.

Holding premium AKs in the small blind after the button folds, raising to 3bb for value.

Seven-three offsuit is dominated and has poor equity against a 3x raise from the small blind; calling 200 into a small pot is -EV and there's no fold equity worth bluffing with here.

T8s is a standard open from the button in 3-handed play to leverage position and playability.

A3o out of position against a button raise with the big blind still to act is dominated too often; calling 200 into a small pot with a weak kicker has negative EV, so folding preserves chips.

46 offsuit is too weak to continue against a button open after the small blind folds. Folding avoids paying 150 more with a hand that rarely flops well.

On the button in a 3-handed game, J7o is a marginal but workable steal-raise; a small 3x open has good fold equity and keeps me in position if called.

78o is too weak to call a 3bb button open out of position, and a 3-bet would be a pure bluff with poor playability. Folding keeps the loss to the small blind.

53o is well outside any reasonable BB defense range against a 3x button open.

79o is too weak to open even from the button in a three-handed pot; folding avoids playing a dominated offsuit hand.

72o is the absolute bottom of the range and plays terribly out of position; folding is the standard play.

Kh Qh is a premium suited broadway on the button, making a standard 2.5bb open raise for value and position.

Pocket threes have good set-mining odds against a 2.5x button raise; calling 150 more cheaply is better than folding or reraising with such a marginal pair.

Q6 offsuit is too weak to continue multiway against a button raise and a small-blind call. Folding avoids putting more chips in with a dominated, poorly coordinated hand.

Pocket threes have no equity vs theTd board; pot odds don't justify folding a free check heads-up.

With two overcards and a gutshot but no diamond on a monotone board, checking behind in position controls the pot and takes a free turn card.

My pocket threes have almost no equity on a four-diamond monotone board and beat only unpaired no-diamond hands, so checking keeps the pot small and preserves my thin showdown value; I can comfortably fold if seat_2 bets.

I hold no diamond blockers on a four-flush board, so bluffing here is risky against a wide defense range that often holds any diamond.

I only hold bottom set-less pocket 3s on a four-diamond board with no diamond; checking back to realize showdown cheaply and fold to any bet is clearly best.

We hold no diamonds on a four-flush board, meaning we unblock all of the opponent's flushes. Bluffing without diamond blockers here is unprofitable, so checking down is best.

K8s suited is well ahead of a 3-handed button range; raising to 3x builds the pot with initiative and fold equity rather than limping.

57 offsuit is too weak to continue out of position against a button open, so folding saves chips.

J6o is too weak to defend out of position against a 3x button open.