Independent guide
This independent LM3886 guide supplies its own free Turn Cluster 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 connected group without a straight triple
Choose 3, 4 or 5 hazards on a 4×4 board. All hazards form one component connected by shared edges. No row or column contains three consecutive hazard cells. Diagonal triples are not excluded by this rule. All 36, 33 or 16 legal layouts respectively are equally likely, and one layout stays fixed throughout the round.
Expected return and variance
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.
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Frequently asked questions
Is this an operator website?
This independent LM3886 guide supplies its own free Turn Cluster 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 connected-group rule?
Choose 3, 4 or 5 hazards on a 4×4 board. All hazards form one component connected by shared edges. No row or column contains three consecutive hazard cells. Diagonal triples are not excluded by this rule. All 36, 33 or 16 legal layouts respectively are equally likely, and one layout 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 with probability 11/12, an edge cell away from a corner has probability 5/6 and a central cell 2/3. From a 20-coin stake, a safe corner starts a value of 20×0.97/(11/12), about 21.164 coins; a safe central cell gives 29.1 coins. Observations update the compatible layouts, so later odds can increase or decrease. With 4 or 5 hazards there are 33 or 16 legal layouts.
Explore the original free Turn Cluster Mines demo.
