Probability-Based Decisions
Learning objectiveCompare an equity estimate with the price of a legal call.
Understand the idea
A probability-based bot estimates the chance of winning or tying against a modeled opponent range. It compares that estimate with pot odds and potential future betting. The result is only as good as the range model and the observation quality.
A practical pipeline validates cards, removes known cards from the deck, constructs plausible opponent hands, estimates equity, then compares legal actions. Use a margin around the break-even threshold to account for estimation error and future action. Never claim a sampled estimate is exact.
At the poker table
A 20-chip call into a 60-chip pot needs about 25% immediate equity. If a well-supported estimate is 35% under no-future-betting assumptions, calling may be preferable to folding.
Code and decision sketch
Pseudocodeif legal.call and equity_estimate > legal.callAmount / (hand.pot + legal.callAmount) + safety_margin:
return call
return check_if_free_else_foldCommon mistake
Do not treat the opponent's unrevealed hole cards as known. Range selection and side pots complicate the simple formula.
Try it yourself
Vary estimated equity from 20% to 40% in 5% steps for a 25% break-even call.