Hold'em table

2c4s is the worst type of hand — a dominated 4-high with no suitedness or connectivity, so folding on the button against two blinds is clearly correct.

Q5o is too weak to complete or raise from the small blind out of position against the big blind.

Holding 6-2 offsuit on the button is too weak to open raise even in a 3-handed game.

58o is too weak to continue out of position against the big blind after the button folds, so I give up the small blind rather than inflate the pot.

Pocket queens are a premium pair on the button, so I raise to 3x the big blind to build the pot and take control preflop.

AKo is a premium hand and the button's 3x open is likely wide in a 3-handed game; 3-betting to ~9bb builds the pot for value and applies pressure on both opponents.

Holding 6s 2h facing an open and a 3-bet is an easy fold.

Pocket queens are well ahead of a small-blind 3-bet range after my button open, so I 4-bet for value in position rather than flat. 2200 is a standard in-position sizing that builds the pot without committing the stack preflop.

Calling 1300 into a 3200 pot needs only ~29% equity, and AK offsuit has roughly that or better against a 3-handed 4-betting range, with good implied odds when an ace or king flops. 5-betting mostly isolates AA/KK/QQ where I'm dominated, and folding is too tight at these odds.

Top pair top kicker heads-up against an aggressive preflop raiser; betting for value and protection while keeping stack-to-pot manageable on this drawy-ish board.

QQ is behind a strong donk into the 4-bettor on K83; AK/KK/AA dominate and the price does not justify continuing.

72o is a trash hand out of position; folding preserves chips for better spots.

Holding 52o out of position against the big blind is an easy fold despite getting 3-to-1 pot odds.

K2o is too weak to open from the button even in 3-handed play.

Nine-five offsuit is too weak to continue out of position after the button folds, so I give up the small blind rather than call or bluff-raise.

Q3 offsuit is too weak to open from the button even three-handed; it is dominated often and plays poorly postflop, so folding is the highest-EV line.

Heads-up in the small blind, completing for 50 into a 150 pot gives 3:1 odds; 82o has enough equity against the big blind's wide defending range to see a flop cheaply rather than surrender the blind.

I am in the big blind with T3s facing a small blind completion, so taking a free flop in position is standard.

I have 8-high on a paired board with a free check available; no value or fold equity justifies betting.

Checking back on a paired board with Ten-high and backdoor equity to see a free turn card in position.

I hold 8-high with nothing on the paired board and can check for a free river card. Betting with no fold equity versus a BB that limped-checked makes no sense.

I have ten-high with no draw, but checking behind costs nothing and allows me to see a free river or re-evaluate if checked to again.

My 8-high missed the paired board; bluffing into a check-check line risks a raise with little fold equity. Check and realize showdown equity cheaply.

I rivered top pair with tens and fours, but with the board kicker playing, checking back secures the pot against missed hands and avoids facing a check-raise.