Hold'em table

On the button in a 3-handed game with a connected 56o, I have position on both blinds postflop, so a standard 3x open is profitable; I can release cheaply if I get resistance.

J4 offsuit is weak facing a raise; not worth calling from small blind out of position.

K9o is too weak and poorly playable out of position against a button open, so folding is the higher-EV choice.

On the button with Ace-high, a standard raise to isolate and take initiative against the blinds is profitable.

K2s is too weak to continue out of position against a button raise, especially with the big blind still to act. Folding avoids a dominated, poorly playable spot.

75 offsuit is far too weak to defend the big blind against a button raise while out of position. Calling 200 into a 450 pot with a hand that flops poorly and has severe reverse implied odds is -EV, so folding is clearly best.

78o is playable as a button open in three-handed poker with position, so I make a standard 2.5bb raise rather than limp or fold.

68 offsuit is too weak to defend from the small blind against a 2.5x button raise, especially out of position with poor postflop playability. Folding is the clear profitable play.

2-5 offsuit is a weak hand facing a raise; folding is correct here.

King-eight offsuit on the button in 3-max is a standard open; raising to 3x builds the pot with position and applies pressure to the blinds.

J5o is too weak to defend out of position against a button open; calling leaves me dominated and poorly placed postflop.

J7 offsuit is a weak hand not worth playing from the button facing action; folding preserves chips.

Button folded, so I only need 50 more into a 150 pot with suited T7. Completing is the right price; raising out of position with this hand is unnecessary.

Heads-up in the big blind against a weak SB limping range, 87o is often ahead and benefits from fold equity; a small raise pressures the limper and builds the pot when called.

T7s has enough equity and suited playability against a small isolation raise to continue for 1.5bb, but it is too weak to 3-bet out of position.

I have ten-high with only a backdoor club draw and no pair or straight draw, so there is no value in betting into the preflop raiser. Checking is free and keeps the pot small while I see the turn.

I hold 8-high with only a gutshot to the 5, and the preflop caller checked to me in position. Taking a free card keeps the pot small; if a 5 hits I can value bet, and I avoid building a pot with just 4 outs.

I have only a club flush draw and no pair, out of position against the preflop raiser. Checking keeps the pot small and lets me realize the free river card.

Opponent flatted preflop then checked flop and turn, a capped, weak line; a ~60% pot bluff has strong fold equity, and my gutshot to the 5 gives extra equity if called.

I have a club flush draw with deep stacks, so the turn bet is a reasonable call on implied odds despite slightly short immediate pot odds.

I have only a pair of tens with a weak kicker on a king-queen-ten board, so a river bet gets called by better and folds out worse. Checking is the highest-EV line.

My best hand is only king-high (no pairs or draws got there), so betting has little fold equity against an opponent who check-called the turn and will rarely fold. Checking back is free and preserves the chance their air misses.

K6 suited is playable as a button open in three-handed poker. A 2.5bb raise takes the initiative and can fold out worse hands while keeping the pot manageable.

Nine-two offsuit is nearly unplayable against a button raise; calling 200 more to win a 400 pot with a hand that rarely connects is -EV. Folding preserves chips for better spots.

K9o offsuit is playable getting good pot odds heads-up against a min-ish raise; call rather than fold or reraise.

I only have a backdoor flush draw and a gutshot with king-high, not enough to bet into two players; checking to control pot size.

King-high with no pair or draw on Q-T-8 has little fold equity worth paying for, and checking in position keeps the pot small while retaining showdown value.

I have a gutshot straight draw with king-high, no bet to call, so I check and control the pot on the paired board.

King-high with no pair or draw has little showdown value, but a turn bluff on this paired board is unlikely to fold out a caller who has already checked twice. Checking behind avoids bloating the pot with a weak hand.

I hold two pair, Kings and Tens with a Queen kicker, a strong hand on a check-checked board; betting extracts value from weaker holdings like top pair or worse two pair.

I have kings and tens on a paired board and only need to call 350 into 900. That price is too good to fold two pair, and raising would mostly fold out worse hands while getting called by full houses and straights.