Field guides from The Grid Desk
Plain-English guides to the mines game: how the board works, the real probability of surviving each pick, how multipliers are priced, why the house edge never goes away, and how provably fair boards are generated.
A plain-English walk-through of the mines game: the 25-tile board, how the mine count sets the risk, how multipliers grow with each safe pick, and when a round ends.
The exact chance of surviving k picks on a 25-tile mines board, from the formula C(25-m,k)/C(25,k), with full tables for 1, 3, 5 and 10 mines and a worked calculation.
How mines multipliers are priced: the fair multiplier is 1 divided by the survival chance, and a house edge scales it down. Tables for 3 and 5 mines, a worked check and a checklist.
Expected value explained for mines, with the algebra and a 20,000-session simulation showing every mine and pick combination loses the same 1% on average. Only the swings differ.
Six common mines myths checked against the maths, then a worked example of how a provably fair game turns a server seed, client seed and nonce into mine positions.
We explain how the mines game and its maths work. We don't rank sites, name operators, sell "strategies" or promise wins. Every pick count and mine count carries the same house edge, so over time you should expect to lose the money you play with. 18+ only. Responsible gambling