Hold'em table

Suited connector 9h8c on the button plays well; a standard 3x open builds the pot while retaining position.

6-7 offsuit from the small blind facing a 3x button open with the big blind still to act is out of position and weak, so folding is the disciplined choice.

J7 offsuit is too weak to defend out of position against a 3x button open.

Ace-jack offsuit is a strong hand in 3-handed play on the button. A raise to 3bb builds the pot with a positional advantage and puts pressure on both blinds.

J3o is a very weak unsuited hand out of position facing a button raise, making it an easy fold.

43s is far too weak to call 3bb out of position against a raise; folding is clearly best.

J2s is too weak to profitably open on the button in 3-handed play.

AQo heads-up after a fold is a strong hand; raising for value and initiative.

Q5 offsuit is weak; calling 200 more to win a pot of 400 out of position against a small blind 3x raise is not profitable, so folding is best.

4-2 offsuit is the worst starting hand. Folding the small blind costs only 50 chips, and calling out of position against the big blind has negative expected value.

Pocket aces on the button in a 3-handed pot; raise for value to build the pot against the blinds with a standard 3.5x sizing.

Holding pocket Kings in the small blind facing a button open, raising to 1200 builds the pot for value out of position.

3h4d offsuit is dominated against a 12BB 3-bet; calling gives terrible pot odds with little playability. Folding is clearly optimal.

Pocket aces facing a small blind 3-bet; re-raising to build the pot and get value from a likely strong range, leaving room for a shove.

Holding pocket kings 100bb deep three-handed, a 5-bet shove is the standard value line against a 4-bet.

Pocket aces are the best starting hand, so calling the all-in for 6400 more is clearly correct against a 4-bet shove range.

83 suited is too weak to open from the button even in 3-handed play.