B650: Full Shelf Mines Rules

One Full Hazardous Row and No Full Column

Full Shelf Mines uses four rows and four columns. Choose five, six or seven total hazards. Exactly one entire row is hazardous and no entire column is hazardous. Other hazards are allowed subject to these conditions. The full row is hidden before play. There are respectively48,264 and864 legal full layouts. One layout is sampled uniformly and stays fixed for its round. Opened safe cells restrict the remaining legal layouts, so exact posterior safety probabilities may differ by cell and reveal history.

The initial gross collection value is 0.97 times the captured stake. For each unopened cell, count the remaining legal layouts compatible with all safe reveals. Its displayed safe probability is the proportion without a hazard in that cell. A safe reveal divides the current collection value by this exact probability. A hazard ends the round with zero return. The displayed percentage is rounded for reading; the payout uses the exact fraction. A proven safe cell has probability one and adds no multiplier. A proven hazard has probability zero and cannot be selected. A choice that would make the collection value exceed 1000 times the captured stake is disabled individually. Other eligible choices remain available. The game collects automatically when no eligible uncertain choice remains. Otherwise, collect after at least one safe reveal or choose another enabled cell. Every permitted stopping policy has exact unrounded expected gross credit of 97% of captured stake. This is not winning frequency or a guaranteed individual or session outcome. Conditional information changes available choices and quotes without raising expected return. The 0.97 factor is included once; settlement does not deduct another three percent.

Current Value and Conditional Probability

The initial gross collection value is 0.97 times the captured stake. For each unopened cell, count the remaining legal layouts compatible with all safe reveals. Its displayed safe probability is the proportion without a hazard in that cell. A safe reveal divides the current collection value by this exact probability. A hazard ends the round with zero return. The displayed percentage is rounded for reading; the payout uses the exact fraction.

Collection and Disabled Choices

A proven safe cell has probability one and adds no multiplier. A proven hazard has probability zero and cannot be selected. A choice that would make the collection value exceed 1000 times the captured stake is disabled individually. Other eligible choices remain available. The game collects automatically when no eligible uncertain choice remains. Otherwise, collect after at least one safe reveal or choose another enabled cell.

Expected Gross Credit

Every permitted stopping policy has exact unrounded expected gross credit of 97% of captured stake. This is not winning frequency or a guaranteed individual or session outcome. Conditional information changes available choices and quotes without raising expected return. The 0.97 factor is included once; settlement does not deduct another three percent.

Scope of This Guide

These pages describe this guide’s scope and its original demo. They do not rank an external business, confirm financial reliability, provide a legal opinion or establish permission to gamble in any country. External activities have rules and eligibility requirements that this guide has not verified. The original demo does not reproduce an external product’s interface or odds.