Hold'em table

Ace-five suited is a strong button open; a 2.5bb raise builds the pot and applies pressure before the blinds act.

92s from the small blind facing a button open, with the big blind still to act behind, is too weak to continue profitably out of position.

73s is too weak to defend out of position against a button raise.

A3o on the button in 3-handed play is a clear open; with the ace blocker it steals the blinds well, so I'll make a standard 2.5bb raise.

T5o is an unplayable trash hand out of position facing a button open, making this a trivial fold.

ATo is ahead of a button open often enough and the price is only 150 into 400, so calling and seeing a flop is better than folding or bloating the pot with a 3-bet.

Ace-high with no pair or draw on a king-high flop is too weak to lead into the preflop raiser, so I check and realize equity cheaply.

In position with an ace and a backdoor wheel draw on a dry K-high board that favors the preflop raiser; a small c-bet should take it down often. With A3 holding little showdown value, betting cheaply for fold equity is better than checking back. I keep equity through ace overcard outs and the gutshot to the wheel.

Ace-high with no pair or draw on K-6-4 is too weak to continue against a flop bet; I am often dominated and have little equity.

Open-raising from the button with an Ace blocker to steal the blinds 3-handed.

T6o is too weak to continue from the small blind against a button open, with the big blind still to act. Folding avoids paying 150 more with a dominated offsuit hand.

KTo in the big blind facing a 2x button open: we need only 100 more into a 350 pot, so this is an easy defend. Calling keeps the opener's bluffs in, and a 3-bet risks getting dominated.

KT high with a gutshot on a paired 977 board is out of position against the preflop raiser, so checking keeps the pot small. I can continue against a small c-bet with overcards and the straight draw.

Check back with Ace-high to control the pot size and realize showdown equity in position on a paired board.

The button checked back the flop, which caps its range and suggests weakness. A small turn stab can take down the pot or fold out better high-card hands, and I have overcards as backup.

I only have Ace-high with a weak kicker and no draw facing a turn probe bet on a paired board, so folding is clearly the most +EV play.

K6 offsuit is too weak and easily dominated to call or open from the button, so folding preserves chips.

Pocket threes are well ahead of a random big-blind hand in a blind-vs-blind spot. Raising to 3bb takes the initiative and lets us win the pot right away or play in position-agnostic fashion.

Defending the big blind with A3o against a small blind open, closing the action in position getting 2 to 1 pot odds.

Our full house is strong on a paired monotone-rank board, though it loses to higher pocket pairs and quads. A small one-third-pot c-bet gets value and protection while keeping our range wide.

Getting 4 to 1 pot odds with Ace-high on a paired board in position against a small continuation bet.

Our 33 makes only a weak full house: it loses to any ace, any 4, and any pocket pair above threes, which are much of the caller's range. Checking controls the pot and lets us bluff-catch selectively.

I hold fours full of aces on a board of 4-4-4-A. Checking back controls the pot, under-reps my hand, and gives villain an opportunity to bluff or pay off on the river.

Our 44433 full house only beats unpaired hands that missed the A and K, and those won't call a bet. Any A, K, pocket pair or 4 beats us, so we check and take showdown value.

We have a full house (fours full of aces), which beats any king-high full house and all board-playing hands. A small-to-medium value bet can get called by a king or someone hoping to chop with the board.

Our 33 makes 4s full of 3s, which beats bluffs and any hand that just plays the board. Calling 400 to win 1400 needs only about 22% equity. The small river bet keeps enough bluffs and weak hands in their range to justify a call, but raising would only get called by aces, kings and bigger pairs.

In 3-handed play, the button opens a wide range, and 65o is a reasonable steal against two blinds at 100bb. A small 2.5x open puts pressure on the blinds cheaply while keeping our playability.

A4o plays poorly out of position against a button open with the big blind still left to act, making it a standard fold.

Ten-deuce offsuit is too weak to continue against a button open; folding avoids putting more chips in with a dominated hand.

Holding 93o on the button in a 3-handed game is well outside any reasonable opening range, making folding the standard and most profitable play.

K3o is too weak to continue out of position against the big blind after the button folds, so I give up the small blind rather than call or bluff-raise.