Rainbet Mines Calculator & Verifier

On Rainbet a Mines board is 25 tiles with a chosen number of bombs. The bomb positions are not rolled when you click - they are fixed the moment you place the bet. The casino feeds your unhashed server seed, your client seed and the nonce through HMAC-SHA256 and uses the resulting bytes to drive a Fisher-Yates shuffle of the 25 tile indices; the first N positions in that shuffle become the bombs.

Because the shuffle is fully determined by the seed pair and nonce, the same three inputs always reproduce the same board. The pre-committed hashed server seed means the casino cannot move a bomb after you start clicking - once you rotate seeds and reveal the server seed, the whole layout is reproducible.

There is no safe-tile pattern to learn - the bomb layout is a uniform shuffle bound to the seed, so every untouched tile carries identical risk on any given pick. Cashing out earlier banks smaller, more reliable multipliers; pushing deeper compounds payouts but the bust probability climbs with every tile. The verifier proves the board was honest; it cannot reveal a live board, because the server seed is hidden until rotation.

If you play, decide a target number of picks and a bomb count before the round and stick to it. Higher bomb counts turn Mines into a high-variance game where one or two tiles can pay big but most rounds end fast. Use the multiplier table as the real curve, and never chase a busted round with a bigger bet.