MINES PROVABLY FAIR VERIFIER

Mines places a chosen number of hidden bombs on a 5×5 grid; you reveal safe tiles to grow your multiplier and bank it before hitting a mine. Because the bomb layout is committed cryptographically before you play, you can recompute exactly which tiles were mines once the server seed is revealed. Paste your seeds below to verify any board.

HOW MINE POSITIONS ARE CALCULATED

Mines uses a shrinking-pool (Fisher–Yates) shuffle so no two mines land on the same tile:

1. Generate one float per mine from the HMAC stream (it advances the cursor automatically as bytes are consumed).
2. Start with a pool of tiles [0..24]. For each mine, idx = floor(float × remaining-pool-size), take that tile, and remove it from the pool.

Worked example — server seed some server seed, client seed some client seed, nonce 1 with 3 mines gives tiles (1-indexed) 15, 21, 4.

Selecting a different mine count on your casino simply draws more tiles from the same float stream, so the verifier reproduces any configuration.

WHY VERIFY MINES?

Provably fair only protects you if you actually check it. Verifying a Mines round proves the result was computed from the server seed the casino committed to before your bet, combined with the client seed you chose — so the operator could not have altered the outcome after seeing your wager. Spot-checking even a handful of rounds keeps the system honest and removes any doubt during a losing streak.

Want the full picture? The all-games provably fair verifier handles Crash, Dice, Limbo, Roulette, Mines, Plinko and Keno in one place, and our guide on what provably fair gambling is explains the cryptography from the ground up.