Hold'em table

75 offsuit is too weak to open even from the button in 3-handed play.

Button folded, so I am heads-up with the big blind holding ace-king of clubs. A raise to 300 builds the pot with a premium hand and applies pressure before the flop.

7h3c is dominated trash facing a 3x raise from seat_2; calling 200 more to play a weak hand OOP has negative EV, so folding preserves the 100bb stack.

T8 suited is a standard button open in three-handed play; a 2.5x raise takes the initiative and builds the pot.

A3o out of position against a button raise is dominated by stronger aces and has poor postflop playability; folding is the cleanest line rather than calling a 2.5x raise or making a thin 3-bet.

64 offsuit is too weak to defend out of position against a button open.

J7 offsuit is a weak hand even on the button in 3-handed play; it gets dominated easily and has poor playability postflop, so folding the 1bb call is the clean line.

With 87o in the small blind after the button folds, completing offers attractive pot odds to see a flop heads-up against the big blind.

35 offsuit has little value and no reason to inflate the pot out of position; checking is free and keeps the hand small.

We flopped top pair with a weak kicker and a backdoor flush draw out of position; checking controls the pot size while allowing weaker hands to bluff or catch up safely.

I have eight outs to a straight on a checked flop, so a half-pot semi-bluff pressures missed hands while building the pot when I improve.

I have top pair on a relatively dry 8-high board in a limped blind-versus-blind pot; calling the half-pot bet is standard.

I have middle pair on an overcard turn after calling flop; checking to keep the pot small and see villain's action is standard.

I have only a weak double-gutshot with no showdown value, and seat_1 already called the flop. Checking keeps the pot small and takes a free river card in position.

I have two pair, eights and deuces, which has solid showdown value after the turn checked through, so checking to realize equity or induce a bluff is optimal.

I have no pair and lose to every made hand at showdown, so checking realizes nothing. A half-pot river bet after seat_1 checked needs only modest fold equity and is the better line.

We hold two pair (Eights and Twos with a Queen kicker). Seat 2 bet flop, checked turn, and is now betting 250 into 400 on the river, representing either a Queen, trips, or a busted draw from the flop. We only need around 28% equity to call, and our hand beats all missed draws and chops with worse-kicker eights.

97 offsuit is too weak to profitably open from the button even in 3-handed play.

72o is the worst starting hand and plays poorly heads-up; folding the extra 50 is better than completing out of position.

KQs is a strong suited broadway on the button, so I open to 3x rather than flat the big blind.

Pocket threes are too weak to raise but cheap to set-mine: 250 into a 450 pot with ~97bb behind gives decent implied odds if I flop a set, and I can fold easily if the big blind squeezes or I miss.

Q6o is too weak to defend multiway out of position against a raise and a call.

I have the preflop initiative and two overcards on a checked flop, so a small c-bet pressures weak hands and can win the pot immediately.

My 33 has no diamond on a monotone flop and only ~2 outs against a button opener's bet; equity is marginal at best with terrible implied and reverse implied odds, so folding is the clean play.

K8s is a solid button steal in 3-handed play; raising to 300 puts pressure on the blinds and builds the pot with a suited king while retaining position postflop.

75 offsuit is too weak to defend out of position against a button 3x open.

J6 offsuit is too weak to defend the big blind against a button open after the small blind folds, so folding is the standard play.