Rainbet SimulatorMines Odds Calculator
In Mines, every extra safe tile raises your multiplier and your risk. This calculator shows exactly how much, using the same formula as our free Mines simulator.
The formula
Say the board has 25 tiles and m of them hide mines. Your first pick is safe with probability (25 − m) ÷ 25. If it is, there are 24 tiles left and the same number of mines, so your second pick is safe with probability (25 − m − 1) ÷ 24, and so on.
- Chance to survive k picks = the product of those fractions.
- Multiplier = 0.99 ÷ chance to survive.
The 0.99 is the 1% house edge. It means every mine count and every cash-out point has the same long-run return: 99 cents back per dollar staked on average.
Reference table
| Mines | Safe tiles revealed | Chance to survive | Cash-out multiplier |
|---|---|---|---|
| 1 | 1 | 96% | 1.03× |
| 1 | 2 | 92% | 1.08× |
| 1 | 3 | 88% | 1.12× |
| 1 | 4 | 84% | 1.18× |
| 1 | 5 | 80% | 1.24× |
| 3 | 1 | 88% | 1.12× |
| 3 | 2 | 77% | 1.29× |
| 3 | 3 | 67% | 1.48× |
| 3 | 4 | 57.8% | 1.71× |
| 3 | 5 | 49.6% | 2× |
| 5 | 1 | 80% | 1.24× |
| 5 | 2 | 63.3% | 1.56× |
| 5 | 3 | 49.6% | 2× |
| 5 | 4 | 38.3% | 2.58× |
| 5 | 5 | 29.2% | 3.39× |
| 10 | 1 | 60% | 1.65× |
| 10 | 3 | 19.8% | 5× |
| 10 | 5 | 5.7% | 17.52× |
| 24 | 1 | 4% | 24.75× |
Reading the table
- The multiplier is not a bonus for skill. It is the exact inverse of the risk you took, less 1%.
- More mines, faster multipliers. With 10 mines the first safe tile already pays about 1.65×.
- You never need to guess a pattern. Mine positions are random every round, so no tile is "safer" than another.
A useful habit: decide your target multiplier before you start a round, then cash out the moment you reach it. Try it in the free Mines simulator and count how often you make it.
Mines odds FAQ
What is the chance of hitting a mine on the first pick?
It equals the number of mines divided by 25. With 3 mines that is 12%, and with 10 mines it is 40%.
Is there a best number of mines?
No. The house edge is the same for every setting. More mines just make each round shorter and more volatile.
Can the next tile be predicted?
No. Mine positions are random, and each unrevealed tile is equally likely to hold a mine.