About Iron Duel
Iron Duel is our take on a very old French card game. Six decks, two rails. Cards are laid on the black rail one at a time until its total passes thirty, then on the red rail the same way. Aces count one, court cards ten, the rest their number. Every rail ends somewhere between 31 and 40, and the rail that stops closer to 31 wins the duel.
Before the deal you make one call. Black or red backs a rail. Colour backs the rail whose colour matches the very first card dealt; inverse backs the other one. A winning call returns twice the stake. If both rails stop on the same total the stake comes back, except when both stop on 31: then half the stake comes back.
There is nothing to decide once the cards are moving, so a hand is quick and calm. All four calls return almost exactly the same over a long run; pick whichever you like.
How a round works
- Choose a stake: 5, 10, 25, 50, 100 or 250 bolts.
- Choose your call: Black rail, Red rail, Colour or Inverse.
- Press Deal. The black rail fills until it passes 30, then the red rail does the same.
- The rail closer to 31 wins. Colour wins when that rail matches the colour of the first card.
- Equal totals return the stake; two rails on 31 return half of it.
Pay plate
Everything below is what comes back for a stake of one bolt; multiply by your stake. The numbers are read from the same file the game uses.
| Result | Back |
|---|---|
| Your call wins (black, red, colour or inverse) | 2× of the stake back |
| Your call loses | Nothing back |
| Both rails stop on the same total, 32 to 40 | The stake back |
| Both rails stop on 31 | 0.5× of the stake back |
Fair play
Every result is drawn by your browser's own random number generator at the moment you press the button. Nothing is adjusted for your bolts, your history, the time of day or how long you have played, and the game cannot see who you are. Over a long run every stall returns a little less than it takes, as games of chance do; bolts have no cash value, so nothing real is lost or won.
