hard · Poker Theory Fundamentals

What is the primary theoretical justification for 'mixing' actions (e.g., betting 50% and checking 50%) with a specific hand in a solver-generated strategy?

1. The actions have identical expected value against an equilibrium opponent.
2. One action is slightly better, but mixing protects the overall strategy.
3. It accounts for the 'rake' penalty of playing too many large pots.
4. The solver is trying to 'confuse' the opponent with unpredictable play.

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