hard · Poker Theory Foundations

Game: Six-Max NLHE | Format: Cash | Blinds/Antes: 1/2 | Effective Stacks: 100 bb | Hero Position: BTN | Pot Size: 30 bb Hero decided to check back a set of 7s on K♠ 7♦ 2♣ against an aggressive opponent. According to the Fundamental Theorem, where does the profit of this check come from?

1. The profit comes from giving the opponent a 'free card' to improve to a second-best hand. (under this line) (under this line)
2. Checking a set is always an error because it minimizes the pot Hero wins.
3. Inducing an error on the turn/river where the opponent bets air or second-best hands they would have folded to a flop bet.
4. The profit comes from saving Hero from a check-raise.

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