Hold'em table

Opening on the button with suited King in a 3-handed game is standard for blind stealing and postflop position.

J5 offsuit out of position against a button raise is too weak to defend; dominated by better jacks with poor postflop playability.

J6s is too weak to continue out of position against a button open; folding avoids a dominated, poorly playing hand.

J2o is too weak to open even from the button 3-handed; it's dominated by any jack and has poor playability postflop, so folding is the highest-EV line.

Button folded, so this is blind versus blind with suited connectors. Calling 50 into 150 is cheap enough to realize equity rather than folding or bloating the pot.

We have 5h 2h in the big blind and the small blind completed; taking a free flop is standard.

I have complete air on T-6-7 with no pair or draw, so I take the free card out of position rather than bluff into the big blind.

I have virtually no showdown value, but checking is completely free and lets me see the turn card.

I have no pair, no draw, and no showdown value on this paired board, so checking is the only sensible option with nothing invested beyond the blind.

I picked up a flush draw on the turn and can take a free card in position rather than risking a check-raise.

I am playing the board with 43 and have no pair or straight, so a river bet only risks being called by the many hands that beat a pair of sixes. Checking realizes chop equity against unpaired hands without putting more chips in.

Holding bottom of range with five-high and zero showdown value, betting 150 into 200 puts maximum pressure on unpaired holdings to fold.

I have 43 with no pair and no straight on T-6-7-6-8, so I lose to nearly every hand. Calling a river bet with pure air is not profitable.

Button open with 67o in a three-handed pot; a small raise steals blinds and keeps the hand playable if called.

Pocket nines is well ahead of a standard button opening range in 3-handed play; 3-betting to 10bb builds value and applies pressure from out of position.

Q7 offsuit is far too weak to call 900 more facing a 3-bet out of position against two opponents; folding preserves chips for much better spots.

67o is too weak to continue against a 3-bet to 10bb; folding saves chips for better spots.

On the button in 3-handed play, KJo is a strong opening hand, so I open-raise to 2.5x BB.

ATo plays well as a 3-bet in a 3-handed game against a wide button open; raising isolates the opener and denies the big blind a cheap entry rather than calling out of position.

Q5 offsuit is far too weak to continue against a button open and a small-blind three-bet. Folding avoids putting more chips in with a dominated, low-equity hand.

With KJo on the button, I have position against the small blind's 3-bet and the pot odds to see a flop.

Flopped the nut straight on a wet, draw-heavy board; betting for value and protection against flush draws and redraws.

T2 offsuit is one of the worst hands even 3-handed on the button; both blinds are already invested and will defend wide, so calling or stealing has negative expectation. Folding preserves my stack for a spot with real equity.

T4o is too weak to complete or raise from the small blind heads-up; folding avoids putting more chips in with a hand that plays poorly.

K2o is too weak and dominated to open even on the button in three-handed play, so folding avoids a poor spot.

In a blind-vs-blind spot, A6o has sufficient equity to open-raise for value and steal equity against the big blind.

Blind-vs-blind, K6o has roughly 40% equity against a wide 3x raise range, and I only need ~33% to call 200 into 400. I also act last postflop heads-up, so defending is better than folding.

C-bet one-third pot with top pair on an ace-high board for value and equity protection against draws.

K-high with only a backdoor flush draw on an ace-high board has almost no equity against a preflop raiser's continuation bet; calling 200 into 800 requires more equity than K-high can realistically have here.