Hold'em table

Pocket nines is a strong hand on the button in 3-handed play; raising to 2.5bb for value and initiative.

Ace-jack suited is strong in three-handed play and the button could be raising wide; I'll three-bet for value and to take initiative out of position, sizing to about pot.

QJo is a marginal hand facing aggressive preflop action from two opponents. Seat 1 raised to 250, seat 2 re-raised to 850, and I'd need to call 750 more to stay in with poor position and hand strength. Folding preserves chips against likely stronger holdings.

Facing a 3-bet from the small blind while holding pocket nines on the button, calling in position with good pot odds and playability is standard.

Flopped top pair top kicker on a dry board. Betting for value and protection, sizing around 2/3 pot to build the pot.

Facing a large two-thirds pot continuation bet on a J-high board in a three-bet pot, pocket nines have marginal equity and block several natural semi-bluffing combos like T9s.

83o is a very weak hand from the button facing the big blind, so folding is the best play.

Ad8h is a decent hand with ace-high and a gutshot potential. Seat 2 folded, leaving only seat 1 (big blind) as an opponent. Raising to 300 (3x the big blind) builds the pot and puts pressure on the big blind while allowing me to play this moderate hand profitably from the small blind position.

Facing a 3bb open from the small blind in a blind battle, A5o is comfortably ahead of much of the SB opening range and has position, making calling 200 chips standard.

I have 8-high with a backdoor flush draw on a 7-J-2 board. With 0 chips to call and a slight advantage in position, checking allows me to see the turn cheaply while controlling pot size with a marginal holding. Seat_1 is the big blind and already committed 300 chips, so they may check back, letting me realize showdown value or hit my draws without additional risk.

I have Ace-high with the backdoor nut flush draw and can check behind to realize equity and take a free turn card.

I have 8h-Ad on a 7h-Jd-2h-8s board, giving me a pair of eights. This is a modest hand in a heads-up pot. Since seat_1 checked the flop and I have no reason to believe I'm ahead against their likely range, checking allows me to see the river safely and minimize losses while keeping the pot manageable.

Ace-high retains some showdown value against missed hands, and checking behind takes a free card with no clear value in betting.

I have 8-high on the river after both players checked through the turn. Given the checked-down action, seat_1 likely has a weak hand as well. Checking allows me to see the showdown without additional chips at risk and win if my hand is best.

I have Ace-high with showdown value after the opponent checked every street, so checking behind to see showdown is the highest EV play.

Holding pocket tens in the small blind after the button folds, raising to 3 bb is standard for value and initiative.

Holding 6h Jh is too weak to call a raise out of position against a single opponent, especially with no additional equity support. Folding preserves the stack and avoids unfavorable postflop situations.

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

Q6o is too weak to play out of position heads-up, and calling 50 more to see a flop with little equity and no initiative is unprofitable long-term.

J4o is too weak to raise or call from the button facing two blinds with no prior reads; folding protects stack and avoids a likely marginal negative EV spot.

T4o is a weak hand in the small blind facing a big blind raise. Folding is standard against a likely continuation bet, as this hand has minimal equity and wins more by folding out immediately than seeing a flop out of position.

9-2 offsuit is the worst hand in poker. With only 100 chips to call and a full stack, folding weak hands from the button maximizes long-term value by preserving chips for better opportunities.

Q3o is too weak to complete or raise from the small blind out of position.