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Players bet USDG against ChancePool, a single contract that is the bankroll, the bet escrow, the settlement engine, and a Uniswap V4 hook all at once. Stakers fund the bankroll players play against; winners choose to claim in USDG or in CHANCE.
Expected value is fixed at deploy time and immutable: v1 pools ship at EV = 0.85, meaning a bet with stake B returns 0.85 × B in expectation (a 15% house edge). No owner or operator key can retune the odds of a live pool.

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A bet’s life

  1. Place — you call placeStrike, placeRange, or placeLadder with your USDG stake, a clientSeed, and the current epoch’s expectedCommitId. The pool escrows your stake and reserves the maximum payout against the bankroll.
  2. Settle — entropy is derived from the epoch’s committed server seed plus your clientSeed and betId. Settlement is trustless: either a ZK proof of the entropy (settleWithProof) or the revealed seed after the epoch closes. No key can assert an outcome. See Provably fair.
  3. Claim — winners call claim / claimWithProof and pick USDG (paid from bankroll cash) or CHANCE (the full payout is spent buying CHANCE on the V4 pool, delivered to your wallet). See Claiming.

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Bankroll and staking

The bankroll is staker capital. Everything that limits a bet — max stake, max liability, the effective payout multiplier — is derived from availableBankroll(), the pool’s free USDG after reserved liabilities and pending claims. When the house wins, proceeds (minus a 1% protocol fee on house-win amounts) flow to stakers; when a player nets a profit, the loss is socialized across staker positions. Details in Staking.

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