Wallet facts are derived strictly from the supplied contract. The wallet balance and fractional carry are saved in this browser’s localStorage and can persist across sessions. Clearing cached files may leave local storage data, where that storage is actually used.
Wallet & Balance Rules
The demo uses a manual idle-only restoration to set the balance. It is not an automatic replenishment or a deposit.
- Initial Balance: 1000 virtual coins.
- Restoration Trigger: When the idle balance falls below 10 coins.
- Restoration Amount: Sets the balance exactly to 1000 coins.
- Fractional Carry: Persists through settlement, manual refill, and reload.
- Unfinished Reload: An unfinished round ends without refund or resume if the page is reloaded.
- Busy Controls: Stake, mode, and refill are locked while active. Sound, eligible board picks, and collection remain available.
Game Board & Layout
The game uses a 4×4 board (cells 1–16 in row-major order). A fixed number of hazards are hidden, sampled uniformly from the published constraint support of the selected count. The hidden layout is never redrawn during the session.
- Constraint: At least one hazard in the eight-neighbour king graph is adjacent to every other hazard. Other hazards need not be adjacent.
- Probability: After safe picks, only compatible layouts remain. Cell safety percentages are displayed rounded to one decimal place; pricing uses the unrounded probability.
- Selection: Already revealed cells, proven safe cells, and proven hazards cannot be selected.
Pricing & Payout
Each selected safe cell is priced from the exact posterior over consistent layouts.
- Gross Value: Starts at 0.97 times the stake. It becomes the current value divided by that cell's safe probability.
- Known-Safe Cells: Leave value unchanged.
- Proven Hazards: Are disabled.
- Hazard Reveal: Returns zero.
- Live Gross Quote: Calculated as 0.97 times the original support count divided by the surviving support count.
Displayed multipliers are gross coin returns, not profit. Actual payout math is recorded in the source-bound mathematical evidence.
Collection & Stopping Rules
Collection and settlement follow strict rules:
- Collection Eligibility: You may collect only after at least one safe reveal.
- Auto-Collection: Triggers only when no eligible uncertain move remains after a safe pick.
- High-Value Block: A choice with a prospective quote above 1,000× the original stake is blocked without changing state.
- No Automatic Queue: There is no automatic queue for settlement.
Stakes & Modes
The demo supports the following whole stakes:
- 10
- 20
- 50
- 100
Settings and refill are locked while active. The game name remains King Hub Witness.
Mathematical Evidence & RTP
The following table shows exact expected returns and measured simulation estimates. Simulation measurements are supporting sample observations, not the mathematical payout law.
| Hazards | Support Count | Exact RTP | Measured % |
|---|---|---|---|
| 3 | 132 | 96.9999999999997% | 97.0763% |
| 3 | 132 | 96.99999999999984% | 97.005865% |
| 3 | 132 | 96.99999999999997% | 97.13541% |
| 4 | 233 | 96.99999999999996% | 97.00009% |
| 4 | 233 | 96.99999999999974% | 96.980485% |
| 4 | 233 | 96.99999999999999% | 96.945945% |
| 5 | 272 | 96.9999999999998% | 96.993755% |
| 5 | 272 | 97.00000000000021% | 97.0144% |
| 5 | 272 | 96.99999999999989% | 97.179385% |
Every revealed-information strategy has a 97% expected gross return in the fair support model; this is not a win probability.
Frequently asked questions
Is the virtual coin cash-value or redeemable?
No. The virtual coins used in this demo have no cash value. There is no payment flow, no deposit, and no withdrawal mechanism in this guide's demo.
How does the balance restoration work?
If your idle balance drops below 10 coins, you can manually trigger a restoration that sets the balance exactly to 1000 coins. This preserves any fractional change. An unfinished round ends without refund if reloaded.
Can I collect winnings immediately?
No. You may collect only after at least one safe reveal. If no uncertain cell remains after a safe pick, settlement is automatic.
