Banking & Payment Context

No payment provider, deposit method, withdrawal time or external cashier has been verified by this guide. Search results and similarly named domains may refer to unrelated businesses. This demo uses a local virtual-coin wallet and provides no deposit, withdrawal or identity-document submission flow.

Its wallet behavior cannot establish the policies or reliability of an outside product. The guide does not recommend opening an external cashier or depositing a test amount.

The demo wallet follows the rules below. The initial balance is 1000 virtual coins.

• Restoration: If the balance is idle and falls below 10, a manual restore sets the balance to exactly 1000. This is not automatic replenishment or adding coins; it is a manual reset.
• Fractional Carry: Fractional carry persists across settlement, refill, and reload.
• Persistence: The settled balance persists locally, including when it reaches zero.
• Unfinished Rounds: Reloading the page ends an unfinished draw without refund or resume.

Distinguish this manual idle-only restoration from adding coins or automatic replenishment.

Stake, mode and restoration controls are locked during an active draw and the auto queue.

• Locked State: Stake, mode, and refill are locked while active and through any auto queue.
• Sound: Remains available during the locked state.
• Auto Queue: Auto10 queues at most ten captured draws.

The demo has no account-login flow and no payment flow. It is a browser-based demo.

The demo stores settled balance and fractional carry in browser localStorage. Clearing cached files may leave that storage intact.

The template declares Google Fonts. This source observation is not a complete network inventory and does not establish anonymity, other processing, server retention or encryption guarantees. The absence of account and payment controls does not rule out processing elsewhere.

This guide is intended for readers aged 18 and over. That audience policy does not establish local legality or an implemented age-verification gate.

Personal breaks and time or virtual-coin limits are voluntary choices. The demo has no enforced timer, self-exclusion or account-blocking feature. Suitable local qualified help can be sought independently.

The demo features the game Mirror Subsequences. The rules below describe this guide's original demo.

Rules

• Draw two independent uniform two-digit tickets (00–99), retaining leading zeros.
• Concatenate their four digits in ticket order.
• Let L be the longest palindromic subsequence length, retaining position order while allowing deletions.
• Raw Score is max(0, L−2); contiguous substring length is not used.
• One whole captured stake covers both tickets.

Modes & Payout

Choose score, score squared, or score cubed. Each mode is separately normalized over all 10,000 equally likely ordered ticket pairs to 96% expected gross return.

• Gross Formula: Gross = 0.96 × captured whole stake × raw^p / meanForPower(p), where p is 1, 2 or 3 and the corresponding means are 0.281, 0.301 and 0.341.
• Exact Means: [0.281, 0.301, 0.341].
• Powers one, two, and three do not alter which raw scores are zero.

Controls

• Auto10 queues at most ten captured draws.
• Stop cancels future draws while the current one settles.
• 480ms captured settlement; stake/mode/refill locked through active settlement and auto queue.

Worked Examples