Hold'em table

4-9 offsuit is a weak hand, and calling from the button would be a marginal play even in a 3-handed game. Folding costs nothing here.

J2o is a marginal blind-vs-blind hand. Completing for 50 into a 150 pot gives a good price, while raising risks a 3-bet from the big blind.

SB limped after button folded, so I have position postflop and a weak-ish but playable K3o; a raise punishes the limp and often takes the pot down, with K-high having decent equity heads-up when called.

J2o is out of position against the big blind's raise after my limp. Calling 200 to win a 400-chip pot needs 33% equity, but this hand plays too poorly postflop to justify it, so I'll fold.

Q5s on the button 3-handed is a standard open; a 2.5bb raise steals the blinds often and plays well in position.

7-4 offsuit in the small blind facing a button raise is a clear fold; weak hand, out of position, no equity edge.

JTo in the big blind getting 400 to 150 (about 2.7 to 1) against a button open of 2.5bb is a profitable call, and I'll have a positional disadvantage but good playability.

Top pair with a decent kicker (tens with a jack) on a dry flop, heads-up and out of position against the button's preflop raise. A bet of about 64% of the pot builds the pot and charges draws and weaker pairs.

Queen-high with only backdoor straight draws and no flush draw on a rainbow board does not have enough equity to call a donk bet of nearly two-thirds pot. Bluff-raising here is low-value.

9-4 offsuit on the button is a clear fold in a 3-handed 100bb game; it's well below a reasonable opening range and plays poorly postflop.

AQo is a strong hand heads-up against the big blind after the button folded, so I raise for value and to take the initiative out of position.

Getting 2:1 with position against a wide small-blind steal range, 84o has enough equity and playability to defend.

Top pair with an ace kicker on a two-tone flop is likely best heads-up. I'm first to act, so I bet about two-thirds of the pot for value and to charge flush and straight draws.

With 8-high and only a gutshot (4 outs), I am well short of the roughly 29% equity needed to call 400 into 1000. Bluff-raising out of position against a strong c-bet isn't profitable enough here.

Q9 offsuit is a reasonable open on the button in a 3-handed game. A 3x raise takes the initiative and puts pressure on both blinds.

T6s from the small blind facing a 3x button open, with the big blind still left to act, is a weak out-of-position spot. Folding is standard here.

A8 suited in the big blind versus a button open in 3-handed play is a strong hand; 3-betting to 1000 applies pressure to the wide button range and plays well with position disadvantage mitigated by initiative.

Q9o is weak against a 3-bet from the big blind. Calling 700 more out of position-ish with a dominated hand is a losing play, so I fold.

Pocket kings on the button is a premium hand, so I open-raise to 2.5bb to build the pot and get value from both blinds.

T4 offsuit in the small blind facing a button open is a clear fold; it's out of position with poor equity and playability.

KTo is a reasonable hand in the big blind against a button min-ish raise to 250. Calling 150 to win a pot of 400 gives about 27% pot odds, and I'll have position disadvantage but good equity, so calling is better than a 3-bet bluff.

I have K-T on a J-J-Q flop, which gives a gutshot straight draw (A needed) plus a king high card. Out of position heads-up against a button raiser, a small bet of about half the pot can take the pot now and charge worse hands like a queen or a small pair. I'm not confident it is the best line because villain's range hits this board often, but it's reasonable.

KK is well ahead of most of the big blind's donk-betting range on JJQ, including Qx, pocket pairs and straight draws. Raising builds the pot for value and charges those draws while I still have position.

King-high with a ten on a J-J-Q board is only a gutshot draw (any ace makes the straight, but a king doesn't help beyond that). Facing a button raise to 950 after I bet 300, I need to call 650 into 1800 with weak equity versus a range with many jacks, queens, and straights. Folding is the disciplined choice.

A5o on the button in a 3-handed game is a standard open; raising to 2.5bb takes initiative and plays well in position against the blinds.

QQ is a premium hand. Raising to 900 from the small blind against a button open, with the big blind still to act, builds the pot and charges worse hands to continue.

T7o facing an open and a 3-bet from the small blind is too weak to continue, especially with the opener still left to act behind.

A5o on the button facing a 3-bet to 900 from the small blind is a standard fold; it plays poorly out of position-neutral spots against a 3-bet range and we only have 250 invested.