Own-site age and demo rules
These rules describe only this original virtual game. This guide does not determine legal availability of an external service, certify its fairness or promise income. The own-site 18+ restriction is not a statement about every jurisdiction’s legal age.
Exactly one orthogonal hazard pair
Choose 3, 4 or 5 hazards on a 4×4 board. Exactly one unordered pair of hazards shares a horizontal or vertical edge across the entire board. Diagonal contacts do not count. All other hazards have no orthogonal hazard neighbour. All 232, 768 or 1064 legal layouts respectively are equally likely; one stays fixed throughout the round.
Persisted wallet and manual refill
Settled balance and fractional payout carry persist in localStorage. Reloading during a round ends it without refunding its already deducted stake. Outside a round, refill restores 1000 coins when balance is below the smallest stake; it does not add 1000 or reset fractional carry. Hazard count, stake and refill are locked during play.
Technical requests and data limits
There are no account, payment or identity-document forms here. Fonts, the visit counter, server and CDN requests can expose technical data including IP and browser details. Complete anonymity, third-party data use and cookie lifetimes are not established. Clearing cache alone may leave localStorage intact.
Explore the original free Contour Pairs Mines demo.
