Independent guide
This independent 77FF guide supplies its own free Diagonal Links 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.
One diagonally connected group
Choose 3, 4 or 5 hazards on a 4×4 board. All hazards form one connected component using diagonal corner-to-corner steps only. Horizontal and vertical edges do not connect hazards. Every hazard is reachable from every other hazard along diagonal steps; all lie on the same checkerboard colour. All 32, 50 or 52 legal layouts respectively are equally likely, and one stays fixed throughout the round.
Technical requests and data limits
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Choose a stopping time
This demo is restricted to adults 18+ and uses coins without cash value or prizes. Set session time and virtual-coin limits before playing, then stop at those limits. Raising a stake to recover losses does not improve expectation. If playing affects responsibilities or becomes hard to control, stop and seek suitable independently verified local support.
External claims remain unverified
A matching brand, professional design, search result or HTTPS connection does not verify ownership, authorisation or safety. Match any claim against an independent regulator register, including entity, current status, scope and listed domains. No operator licence or service is endorsed here.
Frequently asked questions
Is this an operator website?
This independent 77FF guide supplies its own free Diagonal Links 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 diagonal connectivity rule?
Choose 3, 4 or 5 hazards on a 4×4 board. All hazards form one connected component using diagonal corner-to-corner steps only. Horizontal and vertical edges do not connect hazards. Every hazard is reachable from every other hazard along diagonal steps; all lie on the same checkerboard colour. All 32, 50 or 52 legal layouts respectively are equally likely, and one stays fixed throughout the round.
How is value calculated?
Live value starts at 0.97 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 do odds change after a reveal?
With 3 hazards, a corner is initially safe in 29 of 32 layouts, an edge cell away from a corner in 27 of 32, and a central cell in 21 of 32. From a 20-coin stake, a safe corner gives 20×0.97/(29/32), about 21.407 coins; a safe centre gives about 29.562 coins. Observations update compatible layouts, so later odds can rise or fall. The initial probabilities are not uniformly 13/16.
Explore the original free Diagonal Links Mines demo.
