How are Stake mines multipliers calculated?

Multiplier = 0.99 / win chance, where the win chance is the probability that all your picks are safe and 0.99 reflects Stake's 1% house edge. With 3 mines and 5 picks the win chance is 22/25 x 21/24 x 20/23 x 19/22 x 18/21 = 49.57%, so the multiplier is 0.99 / 0.4957 = 2.00x.

What is the best number of mines to play?

None is better on average: every mines and picks setting keeps the same house edge, 1% on Stake. Fewer mines and fewer picks win more often for less; more mines and more picks win rarely for more. Choose by how much variance you want, not to beat the game.

Do mines predictors work?

No. Each board is set from the server seed, client seed and nonce before you click, and the server seed stays secret (only its hash is shown) until you change seeds. A tool outside the site has no way to see where the mines are. Predictors that ask for a login, seed or payment are scams that take your account or money.

What are the odds of hitting a mine on the first click?

Mines divided by 25. With 3 mines that's 12%, with 1 mine 4%, with 24 mines 96%. Each later click is riskier, since the mines stay while safe tiles are used up.

Is there a pattern to where mines are?

No. The positions come from a hash of the seeds, which is as good as random, and every board is independent. You can check any past board on our provably fair page once the server seed is revealed.

Mines Calculator

Exact win chance and multiplier for any number of mines and picks on a 5x5 mines board, with the fair multiplier and the payout at Stake's 1% house edge (or any other site's).

18+ · Gambling can be addictive. The house edge means you lose over time.

Mines (1-24)

Safe picks (gems) in a row (1-22)

House edge (%)

Bet

Win chance: 49.57%; 1 in 2.02
Fair multiplier: 2.02x; 0% house edge
Multiplier at 1%: 2.00x; pays 19.97
Expected loss per round: 0.10; bet x house edge, any picks

Next pick after 5 safe: 85% safe. Every round keeps the same edge however many tiles you open: more picks only means a bigger win less often.

3 mines: every number of picks

Picks	Win chance	Fair	At 1%	Next pick safe
1	88%	1.14x	1.13x	87.5%
2	77%	1.30x	1.29x	86.96%
3	66.96%	1.49x	1.48x	86.36%
4	57.83%	1.73x	1.71x	85.71%
5	49.57%	2.02x	2.00x	85%
6	42.13%	2.37x	2.35x	84.21%
7	35.48%	2.82x	2.79x	83.33%
8	29.57%	3.38x	3.35x	82.35%
9	24.35%	4.11x	4.07x	81.25%
10	19.78%	5.05x	5.00x	80%
11	15.83%	6.32x	6.26x	78.57%
12	12.43%	8.04x	7.96x	76.92%
13	9.57%	10.45x	10.35x	75%
14	7.17%	13.94x	13.80x	72.73%
15	5.22%	19.17x	18.97x	70%
16	3.65%	27.38x	27.11x	66.67%
17	2.43%	41.07x	40.66x	62.5%
18	1.52%	65.71x	65.06x	57.14%
19	0.870%	115.00x	113.85x	50%
20	0.435%	230.00x	227.70x	40%
21	0.174%	575.00x	569.25x	25%
22	0.0435%	2,300.00x	2,277.00x	-

How to use it

Set the number of mines (1 to 24).
Set how many safe tiles (gems) you plan to open before cashing out.
Pick the site's house edge: 1% for Stake and Shuffle, or type your own.
Read the win chance, the multiplier and what your bet pays. The table shows every number of picks; tap a row to select it. Copy the URL to share it.

The formula

A board has 25 tiles. With m mines, your first pick is safe with chance (25 - m) / 25, the second (24 - m) / 24, and so on. Multiply them for the chance that all k picks are safe:

win chance = C(25 - m, k) / C(25, k)
fair multiplier = 1 / win chance
site multiplier = (1 - house edge) / win chance

This is a hypergeometric probability: picks without putting tiles back. The fair multiplier pays back exactly what you stake on average; the site's multiplier keeps its house edge. At 1% that is 0.99 / win chance, so a round returns 99% on average whatever you choose, and the expected loss is bet x 1%.

Sites round the multiplier they show to two decimals, so a shown number can be 0.01 off ours. The table below keeps two decimals too.

Mines multiplier table (1% house edge)

Multiplier after a number of safe picks, at Stake's 1% edge. Win chance underneath.

Picks	1 mine	2 mines	3 mines	5 mines	10 mines	15 mines	20 mines	24 mines
1	1.03x96%	1.08x92%	1.13x88%	1.24x80%	1.65x60%	2.47x40%	4.95x20%	24.75x4%
2	1.08x92%	1.17x84.33%	1.29x77%	1.56x63.33%	2.83x35%	6.60x15%	29.70x3.33%	-
3	1.12x88%	1.29x77%	1.48x66.96%	2.00x49.57%	5.00x19.78%	18.97x5.22%	227.70x0.435%	-
4	1.18x84%	1.41x70%	1.71x57.83%	2.58x38.3%	9.17x10.79%	59.64x1.66%	2,504.70x0.0395%	-
5	1.24x80%	1.56x63.33%	2.00x49.57%	3.39x29.18%	17.52x5.65%	208.73x0.474%	52,598.70x0.00188%	-
6	1.30x76%	1.74x57%	2.35x42.13%	4.52x21.89%	35.03x2.83%	834.90x0.119%	-	-
8	1.46x68%	2.18x45.33%	3.35x29.57%	8.50x11.65%	166.40x0.595%	23,794.65x0.00416%	-	-
10	1.65x60%	2.83x35%	5.00x19.78%	17.52x5.65%	1,077.61x0.0919%	3.24Mx1 in 3,268,760	-	-
15	2.48x40%	6.60x15%	18.97x5.22%	208.73x0.474%	3.24Mx1 in 3,268,760	-	-	-
20	4.95x20%	29.70x3.33%	227.70x0.435%	52,598.70x0.00188%	-	-	-	-

Mines predictors don't work

Bots, apps and Discord servers that claim to predict mines can't. On a provably fair site the board for each round is fixed by a secret server seed, your client seed and a nonce. You only ever see the hash of the server seed, and it is revealed when you rotate to a new one, after the rounds it decided. Nothing outside the site can know where the mines are before that.

What they can do is take things from you: many ask you to log in through them, paste your seeds, install something or pay for a "premium signal". Don't. Past boards also say nothing about the next one, so a pattern is never there to find.

You can check a finished board yourself with our provably fair verifier.

What other mines calculators get wrong

Multiplier tables with wrong values, or rounded differently from tool to tool, so the same setting shows two different payouts.
Only one site's edge, when mines games keep anything from 0% to 4% depending on the site.
No expected loss: whatever you pick, a round costs bet x house edge on average.

Sources: house edges as stated on Stake's, Shuffle's, Winna's and Roobet's mines pages (October 2026). The probabilities are arithmetic.

Looking for somewhere to play? Our mines gambling sites page compares the edges and rules. Set a budget first, and see our responsible gambling page if it stops being fun.

FAQ

How are Stake mines multipliers calculated?: Multiplier = 0.99 / win chance, where the win chance is the probability that all your picks are safe and 0.99 reflects Stake's 1% house edge. With 3 mines and 5 picks the win chance is 22/25 x 21/24 x 20/23 x 19/22 x 18/21 = 49.57%, so the multiplier is 0.99 / 0.4957 = 2.00x.
What is the best number of mines to play?: None is better on average: every mines and picks setting keeps the same house edge, 1% on Stake. Fewer mines and fewer picks win more often for less; more mines and more picks win rarely for more. Choose by how much variance you want, not to beat the game.
Do mines predictors work?: No. Each board is set from the server seed, client seed and nonce before you click, and the server seed stays secret (only its hash is shown) until you change seeds. A tool outside the site has no way to see where the mines are. Predictors that ask for a login, seed or payment are scams that take your account or money.
What are the odds of hitting a mine on the first click?: Mines divided by 25. With 3 mines that's 12%, with 1 mine 4%, with 24 mines 96%. Each later click is riskier, since the mines stay while safe tiles are used up.
Is there a pattern to where mines are?: No. The positions come from a hash of the seeds, which is as good as random, and every board is independent. You can check any past board on our provably fair page once the server seed is revealed.

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