Independent query guide
This independent Air 186 guide supplies its own free Unique Crowding 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 strict maximum per axis
Choose 3, 4 or 5 hazards on a 4×4 board. Exactly one row must contain strictly more hazards than every other row, and exactly one column must contain strictly more hazards than every other column. Ties for either maximum are illegal. The leading row and leading column need not have the same count. All 144, 1008 or 1632 legal layouts respectively are equally likely and remain fixed during a round.
Expected return
Exact expected return is 97% for permitted stopping policies. The initial 3% reduction is applied once; conditional safe-branch compensation preserves expectation. Choosing coordinates or stopping changes risk and variance, not this expectation. A short session is not guaranteed to match it.
Technical data
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Frequently asked questions
Is this an operator website?
This independent Air 186 guide supplies its own free Unique Crowding 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 are the coordinate sum rules?
Choose 3, 4 or 5 hazards on a 4×4 board. Exactly one row must contain strictly more hazards than every other row, and exactly one column must contain strictly more hazards than every other column. Ties for either maximum are illegal. The leading row and leading column need not have the same count. All 144, 1008 or 1632 legal layouts respectively are equally likely and remain fixed during a 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.
Explore the original free Unique Crowding Mines game.
