How this is real: every safe pick is its own real on-chain round. Your risk level maps exactly to a RouletteRulesVerifier bet class — EASY = 1–18 window (survive 18/37, pot ×2 per pick), MEDIUM = dozen (12/37, ×3), HARD = six-line (6/37, ×6). Each pick re-bets your entire pot in a mutual commit-reveal round with its own 🔍 proof; survive → the pot multiplies exactly; hit a mine → the pot is gone. 💰 CASH OUT between picks banks the exact chain pot. Which tile hides the mine is decoded deterministically from the committed outcome N — the grid visualizes real rounds, it never decides money. House edge per pick ~2.7%; 1.25% fee on losing stakes at close.