Hold'em table

Pocket sixes are a strong button opening hand three-handed; raising builds value and can isolate the blinds.

Q5o from the small blind against a 3x button open, with the big blind still to act behind, is a clear fold. Calling out of position with a dominated hand loses money.

T4 offsuit is too weak to defend against a 3x button raise, especially when I'll be out of position postflop.

J4s on the button in 3-handed play is a reasonable steal candidate against two blinds; open-raise to 2.5bb.

9-4 offsuit is too weak to defend from the small blind against a button raise, especially with the big blind still to act.

K9 offsuit is a profitable heads-up big blind defense versus a button 2.5bb open at this price.

This board favors the preflop raiser, and K-high with only a weak runner-runner heart possibility is not a strong value bet. Checking preserves equity and avoids building a pot out of position.

Top pair with a weak kicker plus a gutshot on a dry-ish board; a small c-bet gets value from worse Jx, 5x and draws while also protecting against overcards.

I have a king-high heart flush draw with potential overcard value, giving enough equity to continue versus this small flop bet.

Check to retain our flush draw and avoid inflating the pot with only king-high. We can evaluate a river bet or showdown value after seeing the opponent's action.

Top pair plus an open-ended straight draw (a 2 or 7 makes the straight). Betting about two-thirds pot gets value and protection against the heart draws and worse Jx, and I still have plenty of equity if called.

King-high has no made hand or meaningful direct draw on this board, and calling the substantial turn bet is unprofitable.

On the button, suited 7-5 has enough playability to open for a modest raise and use position after the flop.

8-5 offsuit is too weak to defend from the small blind against a button raise with the big blind still behind.

ATo is well ahead of a 3-handed button opening range, so a 3-bet from the big blind gains value and fold equity, and playing in position-disadvantaged spots is easier with initiative. Calling would also be fine.

Facing a large three-bet, 7♦5♦ is too weak to continue profitably despite having position.

T4 suited is too weak to profitably open from the button in this short-handed spot.

Blind vs blind with suited connector 54s; raising to 3bb applies pressure and plays well against BB's wide defending range, while completing is also viable.

Q2 offsuit is marginal, but getting 2-to-1 on a call against a small-blind raise makes defending the big blind reasonable.

As the SB preflop raiser I have the range advantage on this dry Q-high board, so a small c-bet of a third pot makes sense. 45s has backdoor straight and flush equity, which makes it a reasonable hand to bluff with.

Top pair is strong enough to continue against a small flop bet. Calling keeps weaker hands and bluffs in while avoiding a large pot with a weak kicker.

The ace is a strong barrel card for my preflop-raiser range, and it pressures the Qx, 9x and pocket pairs that called the flop. My gutshot to the wheel gives me some equity if I get called.

Second pair can still beat draws, weaker pairs, and bluffs. The 450-chip bet is small enough relative to the pot to call and reassess on the river.

Bottom pair has a little showdown value against missed draws. Villain's flop and turn calling range is full of Qx and Ax that won't fold to a bluff, so I'll check and take the free showdown.

Second pair with a weak kicker has showdown value, but a river bet is unlikely to get called often enough by worse hands.

K8 suited on the button in 3-handed play is a clear opening hand; a standard 2.5bb open puts pressure on the blinds.

Q6 offsuit is too weak to defend from the small blind against a button raise with the big blind still to act.

6-4 offsuit is too weak to defend against a button raise at this depth.

Q9 offsuit is strong enough to open on the button three-handed. A 2.5-big-blind raise applies pressure while keeping the pot manageable.

K9 offsuit is too marginal to defend from the small blind against a button raise while out of position with the big blind still behind.

A5o in the big blind against a button 2.5x open is a clear defend: calling 150 into a 400 pot gives good odds. A 3-bet is possible, but calling keeps the button's weaker hands in.

Middle pair with an ace kicker and a backdoor wheel draw on a board that favors the button's range; checking keeps the pot controlled and lets me call a reasonable c-bet.

This low, connected flop favors the big blind's calling range. With queen-high and position, checking preserves the chance to improve without building the pot.

The button checked back the flop, which caps their range, and my second pair with an ace kicker is likely ahead. A roughly half-pot bet gets value from weaker pairs and draws and denies equity to overcards.

Queen-high has no meaningful draw, and calling 300 with only one card to come is unlikely to be profitable.