A little decision science
Hold’em Lab GTO & equity
Choose your cards. Explore the odds. Study the strategy.
Build your hand
Heads-up · 2 playersYour hole cards
Opponent’s cards
Community cards
No board before the flopChoose a card
Click a card slot, then choose from the deck. Used cards are unavailable.
Define the opponent
Examples: TT+, AJs+, AK, 22-66, AsKh, AQs:0.5. Overlapping terms count once. Ranges are your assumptions.
Small outcome spaces are counted exhaustively, regardless of the simulation setting.
Your equity
ReadyChoose your hand and calculate.
Equity includes half of ties. Call EV assumes no future betting or rake; it is not a GTO action recommendation.
Preflop strategy
Sourced solver dataChoose your cards
Loading the published blueprint…
Heads-up · no ante or rake · 25,000 DCFR iterations. This source approximates postflop continuation using all-in equity; it does not certify a full-game GTO equilibrium. Source & assumptions ↓
Explore all 169 starting hands
Click a hand to select it. Red = raise/all-in, blue = limp/call/check, gray = fold.
Data & methods
Real hand calculations
Equity is calculated from the 52-card deck and standard best-five-of-seven Hold’em rankings. Your cards, board, and opponent cards cannot overlap. Opponent ranges retain their combo weights after blockers. Exact results count every valid outcome; simulations sample legal deals and show an approximate 95% sampling margin.
Traceable preflop data
Frequencies are copied without rounding from the MIT-licensed poker_solver blueprint: 169 classes, four decisions, and 20/40/100 bb stacks. The data records the original configuration and SHA-256 hashes. Upstream reports no final exploitability measurement; frequencies are model estimates, not verified commercial GTO charts.