Run the math behind any call.
Interactive calculators built on simulated hand data. Adjust the inputs — watch the outputs.
Loner Probability Calculator
Estimate the success rate and expected value of going alone based on your hand shape.
Strong alone — take it.
Should I Call? Analyzer
Inputs your seat, trump count and score pressure. Outputs the EV of ordering vs passing.
Long-run point swing per opportunity at these inputs.
Dealer Pickup Analyzer
What's the probability the dealer accepts a given up-card? Adjust the up-card to see the swing.
Highest pickup rates come from bowers and aces — they swing hand control by 25+ points.
Trump Distribution Explorer
Posterior distribution of trump held by a single opponent based on your hand.
4 trump unaccounted-for.
Seat Position Strategy Tool
Each seat has its own optimal calling threshold and tempo. Pick a seat to see the playbook.
Most profitable seat. Call next-red aggressively when dealer turns down.