Mines
A grid game where you uncover tiles to raise your multiplier and cash out before you hit a hidden mine.
Mines uses a grid, typically 5x5 with 25 tiles. You choose how many mines are hidden, then reveal tiles one by one. Each safe tile increases your multiplier. You can cash out at any time; hitting a mine loses the bet.
How results are generated
The mine positions are fixed when you place the bet. In a typical provably fair implementation, the game shuffles the 25 tile positions using a sequence of floats (a Fisher-Yates style shuffle, where each float picks one of the remaining positions) and takes the first positions as mines. A full shuffle uses up to 24 floats, more than one HMAC output provides, so the cursor moves through several HMAC rounds.
Why it matters
Because the layout is decided at bet time, you can verify afterwards that the mines were where the casino said and were not moved in response to your clicks.
Worked example
With 3 mines on 25 tiles, the chance the first tile is safe is 22/25 (88%). The chance of two safe tiles in a row is 22/25 x 21/24, about 77%. Multipliers follow these odds minus the house edge.