Provably fair dice

How it works in play

On Boardgammon the server commits to each online roll before revealing it: it publishes the SHA-256 hash of a fresh secret seed, mixes in a number from your device in a live game, and reveals the seed with the dice. Every online game has a public audit page where anyone can recompute its rolls.

Related terms

• Roll — The two dice numbers thrown on a turn.
• Doubles — Rolling the same number on both dice (e.g. 4-4); the number is played four times.
• PR — Performance rating: average equity error per decision versus a neural-net analyzer. Lower is better; world class is under 2.

Go deeper

• How the dice check works
• Why Boardgammon: dice you can check, analysis you don’t pay for
• Backgammon strategy, from first roll to bear-off

In other languages

• العربيةالنرد العادل القابل للإثبات
• ΕλληνικάΑποδεδειγμένα δίκαια ζάρια (provably fair dice)
• فارسیتاس عادلانه و قابل‌راستی‌آزمایی
• עבריתקוביות הוגנות מוכחות (Provably fair dice)
• РусскийДоказуемо честные кости (provably fair dice)
• TürkçeKanıtlanabilir adil zar