Hold'em table

On the button in 3-handed play, an Ace-high offsuit hand has sufficient equity and fold equity to open with a min-raise.

K6 offsuit is too weak to continue from the small blind against a button open, with the big blind still to act.

The button's minimum raise gives me favorable pot odds, needing about 22% equity. With no rake, J5 offsuit is a reasonable big-blind defend against a typical wide button opening range.

Checking trips to the preflop raiser keeps their bluffs and weaker hands in play and gives them a chance to continuation-bet. We can build the pot after seeing their action.

We hold two pair (Jacks and Deuces) with an Ace kicker on a paired flop; checking back controls the pot and realizes our showdown value comfortably in position.

Trips are strong enough to value-bet after the flop checked through. Betting two-thirds pot extracts value from tens, pocket pairs, and draws while charging hands that could improve on the river.

Facing a 2/3 pot bet on a turn that coordinates the board, our bottom pair of deuces has poor playability and is frequently beaten or outdrawn.

Suited ace on the button in a three-handed pot is strong enough to open; a small raise builds the pot and takes initiative.

T9 offsuit is too weak to defend profitably from the small blind against a 2.5bb button raise with the big blind still to act. Folding avoids poor equity realization out of position and the risk of a squeeze.

Getting 2.7 to 1 odds closing the action preflop against a button open, defending 85 suited is standard and profitable.

I check out of position with a gutshot straight draw, planning to evaluate facing the preflop raiser's c-bet.

Ace-high with no pair or flush draw has little value betting into a checked flop; checking realizes equity cheaply and keeps the pot small.

I turned second pair with a gutshot straight draw; checking allows me to realize equity out of position against button's capped flop checking range.

Ace-high with no pair or draw has some showdown value after two checks, and betting risks getting called by better. Checking is free and lets me realize that equity.

I hold fourth pair with a weak kicker on a board that ran out Qd Kd. Checking allows me to realize showdown value without turning my hand into an ineffective bluff.

Ace-high with no pair or draw has little bluff equity after a checked-down board, and a bet only risks chips I do not need to risk. Checking realizes whatever showdown value I have.

32 offsuit is too weak to profitably open or call here, even on the button. Folding avoids investing chips with poor equity and playability.

J5o is too weak to complete or raise from the small blind out of position.

Holding 32o on the button, this is the weakest possible starting hand and a standard fold even in 3-handed play.

Heads-up with K4o, completing the small blind is cheap enough to see a flop rather than folding a king-high hand.

KQo is strong against a small-blind limping range, and we will have position postflop. Raising to 4 big blinds builds value and pressures weaker hands.

K4 offsuit is too weak to continue out of position against a 4bb raise after the button folded. Folding avoids putting more chips in with a dominated, poorly connected hand.

K9o is ahead of a random button range in three-handed play, so I open to 2.5bb to take the initiative and fold out worse hands.

A2 suited is a useful three-bet bluff against a button open: the ace blocks strong continuing hands, while suitedness and wheel potential provide backup equity. The larger out-of-position sizing pressures both the opener and the big blind.

T3o is unplayable facing a raise and a 3-bet out of position.

K9 offsuit is too weak to continue against a small-blind three-bet to 11bb after my button open. Folding avoids putting more chips in with a dominated, low-equity hand.

Suited connectors are a reasonable button open at 100bb, combining blind-steal potential with postflop playability. Raising to 2.5bb applies pressure while keeping the investment modest.

QTo plays poorly out of position from the small blind against a button open with the big blind still to act.

82o is too weak to continue against a button open; folding avoids paying 150 with a dominated hand.