Independent guide · original demo · 18+

Paper Bridges: Worked Probability and Payout Examples

This guide explains the actual probability and payout structure of the Paper Bridges demo. It focuses on evidenced mechanics, wallet behavior, and settlement rules without assuming external operator status.

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Game Structure and Gross Returns

Paper Bridges features four rows of three bridges, with one hidden hazard per row. Players select one bridge per row to reveal safety. Gross returns after surviving rows are 1.44x, 2.16x, 3.24x, and 4.86x respectively. The stake is deducted once at the start and persists before animation. Row four settles automatically, ending the round.

Mathematical Expectation and Simulation

The score function is defined as (2/3)^k * 0.96*(3/2)^k = 0.96, indicating a 96% expected return. Simulation data over one million rounds shows simulated RTPs ranging from 95.81% to 96.24% across different modes. These figures reflect long-term averages and do not guarantee short-term results. Exact expectations are derived from the game's fixed probability structure.

Wallet Mechanics and Settlement

The demo uses a virtual wallet with an initial balance of 1000 coins. A manual refill restores the balance to 1000 only when idle and below 10 coins. Fractional hundredths are persisted separately; whole coins are credited via floor function. Reloading discards unfinished rounds without refund. Controls disable during active play, and minimum stake is 10.

Frequently asked questions

Does the demo require an account or real money?

No account is required for local demo access. Virtual coins have no cash value, and no deposit or withdrawal mechanism exists within this demo.

What happens if I reload the page?

Reloading discards any unfinished round without refund or resumed settlement. The stake remains deducted, and the wallet resets to its saved state or initial balance if cleared.