Unverified app availability
No operator app, APK, publisher or download source has been verified. This site offers a browser game and supplies no downloadable app. The demo does not prove external app functionality.
File claims do not prove safety
A familiar icon, file size, version, signature claim or positive review alone does not establish app ownership or safety. This guide does not supply APK installation steps or advise disabling device protections.
Unconfirmed app features
App permissions, compatibility, authentication, updates and data handling require the actual app’s current verified documentation. No brand-specific feature is confirmed here.
Technical data and third parties
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.
Frequently asked questions
Is this an operator website?
This independent 1930 Cup guide supplies its own free Diagonal Quota Mines demo. Operator identity, domains, licence, apps, payments, support and commercial game equivalence have not been independently verified. No operator account or commercial link is supplied here.
What is the main-diagonal rule?
Choose 3, 4 or 5 hazards on a 4×4 grid. Exactly one hazard lies on the main diagonal A1–B2–C3–D4. The other hazards occupy off-diagonal cells. All 264/880/1980 legal layouts respectively have equal probability. One random layout stays fixed throughout the round.
How is the live value calculated?
Live value starts at0.97 times the virtual stake. A safe reveal divides it by that cell’s exact conditional safe probability among the remaining compatible legal layouts. A hazard ends the round with zero return. Reveals change knowledge, not the hidden layout.
How are safe probabilities counted?
Initially each main-diagonal cell is safe with probability 3/4. With 3 hazards, each off-diagonal cell is safe with probability 10/12. A safe first diagonal cell from a 20-coin stake gives 20×0.97/(3/4), about 25.867 coins; an off-diagonal safe cell gives 23.28. Later safe probabilities use only compatible layouts, and can increase or decrease.
When can I collect?
Collect is available after a safe reveal. Proven hazards are unavailable; proven-safe cells have probability1 and add no value. A choice with next value above1000 times stake is unavailable. When no eligible uncertain choice remains, the current value is banked automatically. The guard is not a promise that1000×stake can be reached.
Explore the free Diagonal Quota game and its exact conditional cell odds.
