Hold'em table

86o on the button in a 3-handed pot is a marginal hand, and calling out of position against two players has low expected value. Folding is the simple, disciplined choice.

9-3 offsuit is too weak to continue from the small blind, even at a discount, against the big blind.

7-2 offsuit is an extremely weak button opening hand and should be folded preflop.

Button folded, so I'm in the small blind heads-up against the big blind with K5o, a hand well within a standard SB open-raising range. Raising to 3bb applies pressure and takes the pot down often.

J9o in the big blind getting 3:1 on a call (200 to win 400 pot) against a small blind raise to 3bb is a reasonable defend, with a wide opening range from the SB in 3-handed play. A 3-bet with this hand would be too loose.

Second pair with a backdoor-ish 5-high heart draw on a monotone broadway board; a small 1/3-pot c-bet denies equity from random hearts and gum-shoe hands while keeping the pot manageable with a medium-strength holding.

Jh9c on Qh Kh Ah gives a Broadway straight (J-Q-K-A needs a 10) plus a gutshot and a backdoor nut-flush-ish heart draw. Calling 200 into a 800 pot gets good price (4:1 odds) with a gutshot straight draw to the nuts and a heart flush draw (Jh), so call.}

Second pair with a weak flush draw on a very wet, monotone-ish board; opponent called flop so their range contains flushes, straights, and aces. Checking controls the pot out of position and lets me see a free river or call a modest bet.

Board is Qh Kh Ah 6d and I hold Jh 9c, which gives a Broadway straight draw (J-Q-K-A needs a 10) and a heart flush draw with the Jh. Seat 3 bet the flop and then checked the turn, so a free card is cheap and a bluff raise isn't needed; I take the free card.}

Second pair with no kicker on a monotone-flush, four-to-a-straight board; betting gets called mostly by flushes, straights, and aces, so checking to control the pot is best.

I have a Jack-high straight (J-Q-K-A plus nothing for 10, so actually only a pair of jacks) on a board of Qh Kh Ah 6d Jc; I hold a pair of jacks, a weak showdown hand, so I check.

AJo on the button in a 3-handed game is a clear value open; raising to 2.5bb takes initiative and builds the pot in position.

6c Td is a weak offsuit hand. Out of position against a button raise with a big blind still to act, calling 200 more is not worth it, so I fold.

5-2 offsuit is far too weak to defend against a button raise from the big blind.

4-7 offsuit is a weak hand and calling out of position against two players isn't profitable, so I fold.

9-4 offsuit is too weak to defend from the small blind even getting a discounted call, especially out of position.

Open-raise the button with suited-connectivity-style playability in a short-handed game; 7h6c is worth attacking the blinds at a modest size.

AKo in the small blind facing a button open to 2.2bb is a clear 3-bet for value; sizing to 7.5bb (~3.4x) punishes the open and builds the pot with a premium hand while leaving room to continue if 4-bet.

2-5 offsuit is one of the weakest hands, and calling 650 more against a raise and a 3-bet is not profitable, so I fold.

76o is too weak to continue against a substantial small-blind 3-bet after a small open, especially with no positional advantage postflop.

J6 suited on the button in a 3-handed game is a reasonable open-raise; suited with position and fold equity against the blinds.

4-9 offsuit is a weak hand, and I'm out of position in the small blind facing a button raise to 250 with the big blind still to act. Calling 200 more would be a losing play, so I fold.

Defend the big blind against the button min-raise with suited ace-seven; the price is low and the hand has playable equity heads-up.

Check the medium-strength top pair to keep the opponent's bluffs and weaker hands in, while avoiding inflating the pot unnecessarily.

I raised preflop on the button and the BB check-called then checked on a dry A-high board; a half-pot c-bet with my range advantage should fold out many hands, and I have a backdoor flush draw plus a gutshot (4 gives a wheel) as backup.

Call with top pair against a small continuation bet from the button. Keeping their broad opening range and bluffs in is preferable to raising this weak-kicker ace.

With top pair and a weak kicker, checking controls the pot and lets me evaluate the button's turn sizing. I can often call a reasonable bet while avoiding building a large pot unnecessarily.

Jack-high with no draw on Ah3s5cTh after villain called the flop c-bet; barreling with zero equity against a range heavy in Ax and pairs is poor, so I check and give up cheaply.

Check back with a marginal top pair after the opponent's flop continuation bet and turn check. This preserves showdown value while avoiding a thin value bet into stronger aces.

Jack high has almost no showdown value; opponent's turn and river checks cap their range at weak aces, middle pairs and missed draws, so a ~2/3 pot bluff needs under 40% folds to be profitable and represents the continued aggression line.

We have top pair and need to win only about 28% against this river sizing. The checked turn leaves enough missed draws and weaker value/bluffs to justify calling.