Hold'em table

Pocket pair on the button; raise for value and to build a pot with position.

QTo has sufficient equity against a wide button open for 250 into 450, and is too weak to 3-bet out of position.

J4o is too weak to continue against a button raise and a small-blind call; folding saves chips.

Q-high with backdoor straight potential has little value to lead into the preflop raiser on a paired board; checking preserves pot control and lets me realize equity cheaply.

Pocket fours are weak against a paired board; checking behind controls pot size with a marginal hand.

Semi-bluff with an open-ended straight draw (any 8 or K) on a paired board after a checked flop; a half-pot bet can fold ace-high and small pairs while retaining equity if called.

Pocket fours have little showdown value on a J-high paired board; facing a turn bet with no draw, folding is the correct play against a likely stronger range.

K5o is strong enough to open on the button in 3-handed play, and raising gives fold equity plus initiative in position.

4-6 offsuit is too weak to continue against a button open for 2.5bb; folding the small blind is the highest-EV line.

K9o is playable heads-up for a small additional investment given pot odds against a single raiser.

I have middle pair with a king kicker; checking controls the pot and lets me see what the preflop raiser does.

King-high with no pair or draw on a Q-9-8 board that favors the big blind caller; checking in position takes a free card and avoids bluffing into a likely calling range.

I have middle pair (9s) with a king kicker, no strong value to bet; checking keeps pot small and lets me see a free card.

In position with Kc flush draw and overcard after opponent checked twice, a semi-bluff bet has good fold equity and retains equity if called.

T6o is too weak to open from the button in three-handed play; it is dominated often and has poor playability, so folding is best.

Weak offsuit holding (6-9) facing a call with only one opponent left; not worth continuing from the small blind.

J3 offsuit is a weak button hand facing a raise-sized pot; folding preserves chips for better spots.

QKs is a premium hand heads-up against the big blind after the button folded, so raising builds the pot and applies pressure.

J6 offsuit is too weak to continue against a small-blind raise after the button folded, so folding is the best play.

K7 offsuit is well above average three-handed on the button, so raising takes initiative and gains fold equity against the blinds.

KJo is strong enough to continue versus a button open, and calling 200 into 400 keeps the pot manageable while realizing equity.

4-2 offsuit is a weak hand facing a raise and a call; folding is correct here.

I have a diamond flush draw plus a king overcard on a dry-ish flop, so I lead for about half pot as a semi-bluff to build the pot and take the initiative.

Middle pair with top kicker in position plus backdoor diamond draw has enough equity against a half-pot flop bet from a wide SB calling range to call at 3-to-1 pot odds.

I have top pair with a jack kicker plus a diamond flush draw on a wet board. With the action checked to me, a two-thirds pot bet builds value and charges draws.

Two pair kings and sevens is strong but vulnerable to sets, better two pair, and diamond draws. Calling 800 for a 2000 pot in position controls the pot while retaining good equity against Kx and draws.

I have top pair with a jack kicker on a straight-heavy river after seat_2 called two streets. Checking realizes showdown value without bloating the pot or facing a tough raise.

Two pair Kings and Sevens on a checked river likely beats opponent's King, Ten, Queen or missed diamond draw range; a small value bet can get called by worse pairs while limiting loss to straights or higher two pair.

I have top pair with a jack kicker and only need about 21% equity to call a small river bet. Raising is too thin on this coordinated board, so calling is the best option.

T3s is too weak to open even on the button in three-handed play; folding avoids a dominated, poorly connected hand.

Heads-up pot after button folds; Q7o is playable as a light steal raise against the big blind.

T4 offsuit is weak against a small-blind raise, and calling 150 out of position postflop has poor expected value.