Hold'em table

Holding 2-4 offsuit is a very weak hand preflop, so calling the big blind is not profitable. I fold to avoid investing chips with poor equity.

Blind-vs-blind after a button fold, Q5o is a reasonable open from the SB. Raising to 3bb applies pressure and takes the initiative.

ATo is a strong enough heads-up big-blind defense versus a small-blind 3x open. Calling keeps the opener's wider range in while realizing good equity.

Bottom pair with a queen kicker, out of position, on a wet board that hits the big blind's calling range well. Checking controls the pot and keeps some showdown value; I can re-evaluate if they bet.

Betting small with ace-high applies pressure to missed overcards and realizes fold equity while retaining backdoor diamond potential.

Middle pair with a Q kicker is getting 4:1 on a small bet (200 to call into 800), so it has enough equity and showdown value to call rather than fold or turn it into a bluff with a raise.

Middle pair with a weak kicker on a board with flush and straight draws. Check to control the pot and keep bluff-catching range, calling a reasonable bet.

Ace-high has limited value but some showdown equity, and the flop caller can hold many pairs that will not fold readily to a turn stab. Checking keeps the pot controlled and preserves the option to respond on the river.

Our middle pair of fives has some showdown value, but the river completes both flush and straight draws. Betting would fold out worse hands and only get called by better ones, so check.

We have a jack-high straight on a board where the turn checked through. A moderate river value bet can be called by sets, two pair, and lower straights while limiting losses against a flush.

The small river bet gives me about 3.2:1, so I need roughly 24% equity. The big blind's range is wide and includes enough missed draws and bluffs that calling with pair of fives looks marginally profitable.

62o is too weak to open from the button in 3-handed play with two blinds left to act, so folding is the lowest-loss option.

8-5 offsuit is too weak to defend from the small blind against the big blind at this stack depth.

Pocket queens are a premium opening hand on the button. Raising to 3bb builds value while keeping weaker hands and worse pairs in.

We have a premium hand (AK) and are out of position, so a 3-bet to 1000 builds the pot and pressures the button while potentially folding out the big blind.

62o facing an open and a 3-bet is a clear fold; calling 900 more with trash out of position isn't profitable.

QQ is a premium holding heads-up versus the small blind's 3-bet. I 4-bet to a value size that builds the pot while retaining room to respond to a shove.

52o is near the bottom of the small blind range, and playing it out of position against the big blind is unprofitable. Folding loses only the 50-chip blind.

K2o on the button in a 3-handed game is a reasonable steal against only the two blinds, so I'm opening to 2.5bb.

9-5 offsuit is too weak to defend from the small blind against a button raise, especially with the big blind still behind.

QTs is strong enough to continue against a button open, and I am getting good pot odds to call the small raise while keeping the pot manageable out of position.

I have only a gutshot to Broadway and no made hand, so I check to see the turn cheaply and avoid bloating the pot out of position.

As the preflop raiser in position on an ace-high board that favors my range, a small c-bet works well; my king-high has a backdoor straight draw and some fold equity.

Q3 offsuit is too weak to profitably enter from the button against two blinds at this stack depth.

2h8s is a very weak hand out of position against the big blind, so calling extra chips has poor expected value. Folding preserves my stack for better spots.