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.

Loner success
89%
EV vs partner call+3.43

Strong alone — take it.

Should I Call? Analyzer

Inputs your seat, trump count and score pressure. Outputs the EV of ordering vs passing.

EV of calling
+0.13
Marginal call.

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.

Pickup probability91%

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.

Most likely
2 trump
0
1
2
3+

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.

Baseline EV from this seat
+0.31

Most profitable seat. Call next-red aggressively when dealer turns down.