Open without installing
Open the home page in a browser, wait for the board and controls to appear, then choose a stake and hazard count. There is no APK, installer or verified native app supplied by this guide. Nothing on this page asks you to sideload software or change device security settings.
The board on mobile
On a small screen, the board remains a four-column grid. Use the displayed percentages and button labels rather than assuming a cell is safe from its position. The same mathematical rules apply on mobile and desktop.
Picks and controls
After at least one uncertain safe pick, Collect returns the current gross value. A safe pick that leaves no uncertain cells triggers automatic collection. Stake and hazard settings, restoration and a second start are locked during play; sound remains available.
Settlement credits the whole-number part of stake × multiplier + saved fractional carry and saves the remainder for later rounds. The multiplier includes the stake; it is not a profit multiplier. A losing round returns zero and preserves the saved fraction.
Browser wallet
A fresh wallet starts with 1,000 virtual coins. Available stakes are 10, 20, 50 and 100; the default is 20. Start deducts the chosen stake once and immediately saves the new balance. There is no deposit or withdrawal, and these coins have no cash value.
When idle with fewer than 10 coins, Restore sets the balance to exactly 1,000. It neither adds 1,000 nor runs automatically. It preserves the selected stake, hazard count and saved fraction.
Reload with care
Reloading an unfinished round keeps the stake deduction, current balance and fractional carry. The hidden board is discarded without refund, payout or resume. New controls start at stake 20 and 3 hazards.
Balance and fractional carry use this browser’s localStorage. Closing a tab does not create an account or save an unfinished board. Removing site storage deletes these local values; clearing cached files alone may leave them intact.
If the demo fails to load
If the board fails to load, check that JavaScript is enabled and reload while no round is active. Reloading an active round forfeits it. Blocking local storage can prevent the wallet from being remembered; clearing site data creates a fresh local wallet when the game next initializes.
Frequently asked questions
Is this an official 7JJ app or account service?
No official status or outside service has been verified here. This independent guide offers its own browser demo without sign-in, deposits or withdrawals.
Which stakes and hazard counts are available?
Stakes 10,20,50,100 and hazards 3,4,5. Defaults are stake 20 and 3 hazards. Both settings lock during a round.
What does an unfinished reload preserve?
It preserves the deducted stake through the saved balance and retains carry. It discards the board without refund, payout or resume; controls reset to stake 20 and 3 hazards.
