Hold'em table

K3 suited is a profitable button open three-handed. A 2.5 big blind raise applies pressure while keeping the pot manageable.

Folding J5 offsuit from the small blind facing an open raise is standard due to low equity and poor playability out of position.

J6 suited in the big blind is getting 400 to 150, about 2.7:1 odds, against a button open that could be wide in 3-handed play. Calling is reasonable with position disadvantage but good price; a 3-bet would be too loose.

Middle pair (sixes) with a backdoor club draw, heads-up in position-disadvantaged spot against a button raiser who c-bet range is wide. A small bet of about 64% pot gets value from worse pairs and draws and protects against overcards, while the ten on board makes it a non-trivial check-raise-free spot.Betting is preferable to checking.Small sizing keeps risk low.

King-high with no flush draw and only a remote backdoor straight draw is too weak to continue against this flop bet.

J2o is far too weak to open on the button even in 3-handed play.

Small blind with 43s heads-up against the big blind; calling 50 more to win a 200 pot is a cheap price (need about 25% equity) and the suited connector has enough playability to justify it.

With 5-2 suited in the big blind, I can see the flop for free rather than build a pot out of position.

I have an open-ended straight draw (4-3 on a 6-7-T board needs a 5 and 8 for the straight, actually a gutshot-plus-backdoor: 4-5 needed with 8 or 5) with a backdoor flush draw. Heads-up in a limped pot, a small stab of 100 into 200 can win the pot now and lets me continue with equity if called.

I have no pair or immediate straight or flush draw. Calling out of position with this weak hand is unlikely to be profitable.

6-7 offsuit on the button in a 3-handed pot is playable, and calling 100 to win 250 gives good odds and position, so I take a cheap flop.

Pocket nines are strong enough to raise against a button limp. Raising to 500 builds the pot and discourages a multiway flop while I'm out of position.

Q7o is far too weak to call a 5bb raise out of position with the button still to act.

Getting 700+400 pot odds: need to call 400 to win 1100 (about 27% equity needed) with suited-ish connected 76o in position on the button against a small-blind raise; heads-up postflop with position makes calling reasonable versus a wide range. Folding gives up too much equity, and 3-betting bloats the pot with a weak hand. .

Pocket nines have showdown value on this J-T-4 flop, but betting out of position risks building a pot against many better hands. Checking keeps the pot manageable.

I have an open-ended straight draw (6-7 on 4-J-T is actually a gutshot-plus: 8-9 needed, so it is a two-card draw with backdoor potential). The SB checked and I'm in position, so a semi-bluff bet of about half the pot can win the pot now and still has outs when called.

Pocket nines have showdown value against a button player who may bet after my check. Calling the 600-chip bet keeps weaker hands in without building a large pot out of position.

Pocket nines have showdown value, but the jack and ten make a value bet unlikely to get called by worse hands. Checking keeps the pot manageable and lets me assess a bet.

I have a 6-7 open-ender on a 4-J-T-2 board, which is a straight draw (needs 8 or 9... actually 5 or 3 make 3-7 straight? no) so I hold a gutshot-type draw with 4h on board: 6-7 with 4 gives no straight; the real outs are weak. Villain checked twice, showing weakness, and I'm in position, so a semi-bluff bet of about half pot can take the pot now.

Pocket nines are behind many hands that would bet both the flop and turn, and they have few outs against a jack or ten. Calling out of position also risks facing another bet on the river.

KJo is a strong button opening hand three-handed. A 2.5 big blind raise builds the pot while keeping the sizing controlled.

In 3-handed play, ATo is well ahead of a button opening range, so 3-betting from the small blind extracts value and takes the initiative out of position.

Q5 offsuit is a weak hand facing a button open and a large small-blind 3-bet, so calling 850 more out of position is unprofitable. Folding is the best choice.

KJo offsuit is often dominated by a small blind 3-betting range, and the large sizing makes calling unattractive despite having position.

T2o is far too weak to open raise from the button, even in 3-handed play. Folding is clearly the best decision.

T4 offsuit is a weak hand out of position, so I'm giving up the small blind rather than calling 50 more against the big blind's range and playing postflop out of position.

K2 offsuit is a weak hand, so I'm folding to a 100 call despite being on the button in a 3-handed game. It is marginal, but the hand plays poorly out of position against two opponents and folding avoids a costly spot.

A6 offsuit is strong enough to raise against the big blind heads-up, giving us a chance to win the pot preflop.

K6o is just below the defending threshold against a 3x SB open, so folding is the standard play.