Millionaire Mines

Game Mechanics & Rules

Millionaire Mines places a configurable number of mines on a grid you choose - 5×5, 6×6, 7×7 or 8×8 - holding 25 to 64 tiles. All mine positions are determined by the provably fair hash before the round begins. The player reveals tiles sequentially; each safe tile increases the current multiplier, while revealing a mine ends the round with a total loss.

1. Set your bet amount, pick a grid from 5x5 to 8x8, and choose how many mines it holds - anything from 1 up to one short of the tile count, so 24 on 5x5 and 63 on 8x8. More mines increase the multiplier per safe tile but reduce the probability of each safe reveal.
2. Click Bet to start the round. Tiles cannot be selected before the round is active.
3. Each revealed safe tile updates the current multiplier, displayed prominently on screen. The payout formula is: multiplier = (C(tiles_total, tiles_revealed) / C(safe_tiles, tiles_revealed)) × 0.98, where tiles_total is the tile count of the grid you chose.
4. At any point after revealing at least one safe tile, click Cash Out to secure the current multiplier as your payout.
5. Revealing a mine immediately ends the round; the full bet is lost and all mine positions are shown.
6. Review the complete mine map after each round (mines or gems) in the round result panel for provably fair verification reference.

Optimal Strategy & Analysis

The per-tile multiplier in Mines is derived from hypergeometric probability. On a grid of T tiles with M mines, G = T − M tiles are safe, and the chance of surviving R reveals is C(G, R) / C(T, R). The multiplier is the inverse of that chance taken at 98%: C(T, R) / C(G, R) × 0.98. As R increases the multiplier grows super-linearly, because each further safe reveal is conditionally less likely. On the 5x5 grid at 3 mines, ten consecutive safe tiles pay 4.95x and it takes seventeen to pass 30x; at 20 mines, three safe reveals pay 225.40x and a fourth pays 2,479.40x.

The expected value of cashing out at any tile count is identical in expected terms: EV = bet × P(reaching that tile count) × multiplier, and since the multiplier is itself 1/P × 0.98 that comes to 0.98 × bet at every depth. Early cash-out reduces variance; late cash-out maximises potential multiplier at the cost of increasing ruin probability. No depth of reveal offers a different mathematical edge.

Optimal mine count for a given risk tolerance can be modelled as a function of desired multiplier-per-step. On the 5x5 grid with 1 mine, multiplier growth starts slowly and accelerates sharply near the final safe tiles (1.0208x at the first reveal, 1.225x by the fifth), while the chance of hitting the mine starts at 1 in 25 and rises as tiles come off the board. With 24 mines the single safe tile pays 24.50x at once, but any error is catastrophic. Medium configurations (5-10 mines) balance multiplier growth against survival per step.

Clearing a Golden Grid means revealing all 6 safe tiles on a 5×5 board holding 19 mines, and the chance of doing that once the grid opens is C(6,6)/C(25,6), about 1 in 177,100.

Provably Fair Verification

Mine positions in Millionaire Mines are determined by the provably fair hash before any tile is revealed. The SHA-256 hash of (server_seed + ':' + client_seed + ':' + nonce), read as a single integer, seeds a Mersenne Twister, which drives a Fisher-Yates shuffle of every tile index on the grid you chose - 25 of them on 5x5, 64 on 8x8. The first M indices in the shuffled result are the mines. This guarantees all mine positions are fixed atomically at round start, making mid-round manipulation mathematically impossible.

Players can reconstruct the full mine map after finishing active rounds and ending the session to reveal its server seed, recomputing the SHA-256 hash, and running the Fisher-Yates shuffle with the derived seed. The resulting mine positions must match those revealed at round end. WickedBet publishes the shuffle algorithm specification in the fairness documentation. Any deviation between computed and displayed mine positions would constitute a verifiable discrepancy.

The Golden Grid draws its 19 mine positions from a hash of its own, taken under a separate label rather than from the one that lays out the standard round, so the jackpot layout cannot be inferred from or correlated with the mines of the round you are playing.

Millionaire Mode Technical Details

Millionaire Mode in Mines is free to enable; there is no separate per-round fee. Each round can trigger a Golden Grid; the in-game Millionaire Mode panel introduces the bonus for Mines.

While Millionaire Mode is active, standard wins pay at 90% of the off-mode rate. That 10% margin is what funds the jackpot shot on every round; a triggered Golden Grid follows its own jackpot rules.

A Golden Grid opens the jackpot condition. The jackpot is a fixed $1,000,000, pre-funded and paid as a single transaction when the condition resolves.

The jackpot does not accumulate between rounds. Every Golden Grid is a full attempt at the headline figure.