Three draws and their median
One paid round draws three independent uniform pockets numbered 0–12. Sort the three numbers: their middle number is the score. Choose scores 0–4, 5–8 or 9–12 before starting. All 2197 ordered triples are equally likely.
Exact enumeration of 2197 triples
Draws 12, 2 and 7 sort to 2, 7, 12 and score 7. Repeated numbers remain separate draws: 4, 4, 12 score 4. Exactly 725 triples score 0–4, 976 score 5–8 and 496 score 9–12.
Hit probability and total return
Hit probabilities are 725/2197, 976/2197 and 496/2197. Total-return multipliers are 2.909131034, 2.160983607 and 4.252258065. A hit returns stake × 0.96 × 2197 divided by the selected winning-triple count, including stake; a miss returns zero.
Expected return and variance
Exact expected return is 96% in every band: hit probability multiplied by the total-return multiplier is 0.96. Bands change hit frequency and variance, not expectation. A 96% expectation is not a promise of a single spin or a short session. This demo does not certify an external operator or reproduce its games.
One stake and one settlement
One stake covers all three draws. Settings, start and refill are locked until settlement. The selected band pays its displayed total return if it contains the median score. No additional stake is charged for later draws and there is no mid-round cash-out.
Persistent local wallet
Settled balance and fractional payout carry persist in localStorage. Reloading during a round ends it without refunding its deducted stake. Outside a round, refill sets 1000 coins when balance is below the smallest stake; it does not add 1000 or erase fractional carry. Band and stake return to defaults on reload.
Virtual coins and local data
Demo coins cannot be exchanged or withdrawn and are unrelated to an operator account. Only this browser’s settled wallet and fractional carry persist. Clearing cache alone may leave localStorage intact; clearing site data removes local progress.
Frequently asked questions
Is this an operator site?
This independent SL550 guide supplies its own free Middle Dial Roulette demo. Operator identity, domains, licence, apps, payments, support and commercial game equivalence have not been independently verified. No operator account or commercial link is supplied here.
How is the score calculated?
One paid round draws three independent uniform pockets numbered 0–12. Sort the three numbers: their middle number is the score. Choose scores 0–4, 5–8 or 9–12 before starting. All 2197 ordered triples are equally likely.
How many triples win?
Draws 12, 2 and 7 sort to 2, 7, 12 and score 7. Repeated numbers remain separate draws: 4, 4, 12 score 4. Exactly 725 triples score 0–4, 976 score 5–8 and 496 score 9–12.
Try the original free Middle Dial demo.
