Demo · E1 / E2 · Room Coniunctio
A fair six-die. Pick the faces you call favorable (a win). Set the payout the table offers (how many units you receive besides your stake back). Cardano’s rule: wagers in proportion to the circuit (all six faces). Anything else is house edge — even if the die is honest. This is a teaching toy, not a gambling product.
Try. Leave 6 selected, drag payout to 4. See. EV goes negative; house edge ≈ 16.7%. Why. A router that bills a hard-model price for an easy task is this table.
Click faces that count as a win.
5 : 1
1 unit
| Favorable r | 1 |
|---|---|
| Unfavorable s | 5 |
| Odds (fair) | 1 : 5 |
| p | 1/6 |
| EV | 0.00 |
| House edge | 0% |
| Verdict | Equal conditions |
Stake 1 of 12. Fair pays s:r. Offered pays the slider. Limited risk: a teaching purse, not the treasury.
Leave 6 selected, payout at 4. Play 8. Fair jitters; offered leaks 16.7% in expectation — even when the first two are sixes.