How the Probability Structure Works
The game consists of four rows with three bridges each. In every row, exactly one bridge hides a hazard. When you select a bridge, you have a two in three chance of survival. The probability of surviving k consecutive rows is calculated as two-thirds raised to the power of k. This structure dictates the increasing risk as you progress through the game. You must choose to collect your winnings or risk the next row. The fourth row settles automatically if you do not collect earlier.
Gross Returns and Payout Examples
The game offers a fixed gross return for each successful row. Surviving one row yields a 1.44 times multiplier. Two rows provide a 2.16 times return. Three rows grant a 3.24 times multiplier. Four rows result in a 4.86 times gross return. These returns include your original stake. The stake is deducted once at the start. A default stake of twenty-five virtual coins is used. Other options are ten, fifty, and one hundred. The payout is calculated in hundredths. Fractional amounts are carried separately. Whole coins are credited. The remainder stays as carry.
Simulated Evidence and Expected Return
Mathematical evidence confirms the expected return. The theoretical return is ninety-six percent. Simulations of one million rounds support this. Choices one through four all show an expected RTP of ninety-six percent. Simulated results range from ninety-five point five to ninety-six point zero two percent. This confirms the game's arithmetic consistency. The score function is defined as two-thirds to the power of k times zero point nine six times three-halves to the power of k. This equals zero point nine six. This represents the long-term expectation. It is not a guarantee for short sessions.
Frequently asked questions
What happens if I reload the page?
Any unfinished round is discarded immediately. The stake remains deducted from your balance. There is no refund or resume feature. You must start a new round with a fresh stake.
How is the stake managed?
The stake is deducted once when the round starts. It is persisted before any animation. You can choose stakes of ten, twenty-five, fifty, or one hundred. The default is twenty-five. Controls disable while the round is active.
