Hold'em table

5-6 offsuit is a weak hand in early position. With only 100 chips to call and a 10000 chip stack, folding preserves resources for stronger starting hands.

T9o in the small blind facing only a 50 chip completion with 150 in the pot gives a good price (3-to-1 odds) in a three-handed game, and the hand has decent playability, so I call rather than fold or build a big pot out of position.

K2 offsuit is too weak to raise against a limp, and checking is free in the big blind.

Trip tens with a nine kicker is a strong hand on a paired board. I'm first to act heads-up against the big blind, so I'll bet about 3/4 of the pot to build it while letting worse tens, sevens and draws call.

King-high with no pair or draw is too weak to call a flop bet into a paired board; pot odds do not justify continuing.

Ace-x suited-ish wheel hand A2o on the button in 3-handed play is a reasonable open; a 3x raise applies pressure on the blinds and uses position.

94o is too weak to call a button open out of position with the big blind still to act.

3-2 offsuit is one of the weakest possible hands in poker. Facing a 3BB raise from the button after already posting the big blind, folding is the mathematically correct play even against a wide range of opponents.

J2 offsuit is too weak to open from the button in a three-handed game, so folding preserves chips.

3s8h is a very weak hand in 3-way preflop play, especially when facing the big blind after seat 3 folded. With only a 50-chip call remaining to see the flop and a weak holding, folding preserves chips for stronger spots.

T7o is a weak hand in early position. Folding preserves chips against a likely continuation bet and avoids trouble post-flop with poor hand strength.

7-4 offsuit is one of the weakest hands. Out of position against the big blind, calling 50 more is not worth it, so I fold and give up the small blind.

7-5 offsuit is a weak hand out of position against two players, so folding the button preflop avoids a losing spot for 100 chips.

Button folded, so this is SB vs BB. T8o is too weak to raise but priced in to complete for 50 more and realize equity.

I hold K6o in the big blind. Seat 2 folded, and seat 3 called my big blind. This is a weak hand, and checking allows me to see the flop cheaply against one opponent. Folding or raising would be overcommitting to a marginal holding.

I have only a gutshot with no pair or flush draw on a dry flop, so checking keeps the pot small and realizes my limited equity for free.

With K-6 offsuit on a 9-5-J flop, I have minimal equity and no immediate draws. Checking is prudent to keep the pot small and avoid committing chips with a weak hand. Seat 3 checked as well, indicating weakness.

I have complete air on A-J-9-5 with no draw, and the pot is only 2bb after both players checked the flop. Checking keeps the loss small rather than bluffing into a range that can easily have an ace or jack.

My K-6 offsuit is a marginal hand with ace on board. Opponent checked turn, indicating weakness. Checking preserves pot control while keeping options open for river.

I have complete air on the river and no showdown value worth protecting, so I check for free rather than bluff into a passive opponent who may call with any pair.

King-high is a weak hand on a board with A-J-9, and my opponent has checked the entire way, suggesting weakness. Checking allows me to see showdown cheaply rather than risk additional chips betting without a strong hand.

J8 suited is a solid button open in three-handed play, so I raise to 3bb to take the initiative and fold out weaker hands.

Q-6o is a weak hand in a 3-way pot facing a 300-chip raise from the button after I've already posted the small blind. The risk-reward doesn't justify calling with such a marginal holding, especially out of position.

9d4d is a weak offsuit-ish hand; calling 200 more into a 300 button raise with 450 in the pot gives decent odds (~2.25:1), but I'd be out of position with a hand that plays poorly, so folding is reasonable.