A Query Does Not Establish a Business
This independent guide has not established an operator, official address, licence, application, support channel or financial service associated with KV9. A matching search name or logo is a lead rather than evidence of ownership. The guide provides its own original browser simulator, Single Square Mines, using free virtual coins without accounts or payments. Its constrained layouts and probability formula belong to this guide, and do not reproduce or certify a separate game.
One Fully Hazardous Square on a Four-by-Four Grid
Before starting, choose four, five or six hazards on a sixteen-cell grid. A legal layout contains exactly one contiguous two-by-two block whose four cells are all hazardous. Other hazards may lie outside that block; no second two-by-two block may be fully hazardous. There are nine, 108 and 570 permitted layouts respectively. The browser samples uniformly from the complete legal-layout set using unbiased uint32 rejection. That selected layout remains fixed throughout the round, rather than moving hazards after a click.
Exact Probabilities After Safe Reveals
The remaining possible layouts are those consistent with every cell already revealed safe. For a chosen unrevealed cell, count the remaining layouts in which that cell is safe and divide by the total remaining layouts. This is its exact conditional safe probability P. Cells are correlated by the single-square constraint, so an independent-cell or generic binomial formula would describe a different model. A safe reveal removes inconsistent layouts; probabilities for other cells can change in either direction, rather than always becoming safer.
Each Safe Reveal Updates the Current Gross Value
At round start the gross value is 0.97 times the captured whole stake. When a chosen cell is safe, divide the CURRENT gross value by its exact conditional safe probability P. Repeat using the updated value for each later safe reveal; do not repeatedly divide the initial value instead. A proven-safe cell has P equal to one and adds no multiplier. A proven hazard has P equal to zero and cannot be chosen. Hitting a hazard ends the round with zero gross credit. A quoted value is not added to the wallet after each reveal: settlement credits it when collection or automatic banking occurs.
Saved Wallet and Manual Refill
The wallet begins with 1000 free coins. Settled balance, including zero, and fractional-credit carry persist in browser localStorage. While idle with fewer than ten coins, manual refill sets the balance to 1000 and preserves carry. It does not add 1000 and is not an automatic result of losing. Reloading does not reset the saved wallet. An unfinished round ends on reload without a refund; default controls are restored rather than the active hidden layout. Keep active play open until settlement. Cache deletion alone may leave localStorage intact.
Local Storage and External Requests
The guide has no sign-in, payment or identity-document form. That does not make all technical requests anonymous. Google Fonts and Statinside requests, and server or CDN logs, may expose IP, device and request information. Complete third-party processing, retention, cookie lifetimes and anonymity are not established here. Browser settings distinguish cache, cookies and localStorage; check what a deletion action actually removes. This page makes no promise that requests are limited to essential functionality or that profiling never occurs.
Frequently asked questions
Is a business behind KV9 verified?
No operator, official business address, licence or application associated with the query has been independently established here.
What defines a legal layout?
The four-by-four grid contains exactly one fully hazardous contiguous two-by-two block, with four, five or six total hazards. Their legal-layout counts are nine, 108 and 570 respectively.
How is a safe reveal priced?
Divide the CURRENT gross value by that cell’s exact conditional safe probability among remaining legal layouts. The starting value is 0.97 times the captured stake.
When can I collect?
After at least one safe reveal. The game automatically banks when no eligible uncertain choice remains.
Does a proven-safe cell increase value?
No. Its safe probability is one, so the current gross value remains unchanged.
If you choose to explore our original free virtual-coin demo, set a stopping time and take breaks.
