Games and odds · free tool

Mines Odds Calculator and Practice Grid

Updated 8 October 2026 · 5 minute read

Set the grid, the number of mines and where you cash out. The calculator shows how often you get that far, what the payout must be for the game to keep nothing, what it keeps with an edge, and lets you play practice rounds with pretend money.

Tool · runs in your browserNothing is uploaded
Try this many mines:

A 3% edge is only an example. Apps differ and some do not state one, so use the figure your own app states. If it does not, type the multiplier it shows after that many safe picks in the last box and the calculator works out the edge that multiplier implies.

49.6%of rounds get through 5 safe picks
1 in 2rounds that get that far
1.96×payout at that point with a 3% edge
₹97comes back, on average, for every ₹100 staked, wherever you cash out
₹300expected loss over 100 rounds at ₹100
35%chance of finishing those rounds ahead

On a grid of 25 tiles with 3 mines, you get through 5 safe picks about 49.6% of the time (1 in 2). With a 3% edge, a cash-out at that point pays 1.96× (break-even is 2.02×). Wherever you cash out, the game keeps about 3% of what is staked: ₹300 over 100 rounds at ₹100. By pick 5, a mine is more likely than not to have ended the round.

A grid of 25 tiles with 3 mines: every cash-out point returns the same on average
Safe picksChance of getting that farBreak-even multiplierPays with a 3% edgeBack on average for ₹100
188.0%1.14×1.1×₹97
277.0%1.3×1.26×₹97
367.0%1.49×1.45×₹97
457.8%1.73×1.68×₹97
5 (chosen)49.6%2.02×1.96×₹97
642.1%2.37×2.3×₹97
829.6%3.38×3.28×₹97
1019.8%5.05×4.9×₹97
221 in 2,3002,300×2,231×₹97

Practise with pretend money

Press Start, open tiles one at a time, and cash out whenever you like. The mines are placed by random numbers from your browser, using the grid, mines and edge above. There is no money in it, and it is not any app’s game: it shows how rounds tend to run.

Auto-play opens the first tiles each time and cashes out after the number of safe picks set above.

Does it matter which tiles you tap?

Four ways of choosing tiles, tried on the same 2,000 random layouts: always the top rows, always the bottom rows, tiles spread across the grid, and fresh random tiles each round. Run it a few times.

What a Mines-style game is

A Mines-style game hides a few mines on a grid of tiles. You open tiles one at a time, and every safe tile raises a multiplier. You may take your money after any safe tile. If you open a mine, the round ends and the stake is gone. Apps differ in the size of the grid and the number of mines you can pick, so the calculator lets you set both. The edge is the share of every stake the game keeps on average.

The rule behind every number here

Multiply the chance of each pick. On a grid of 25 tiles with 3 mines, 22 tiles are safe, so the first pick is safe 22 times in 25, then 21 in 24, then 20 in 23, and so on. That gives 88.0% for one pick, 77.0% for two and 49.6% for five, about one round in two. By the fifth pick a mine is more likely than not to have ended the round. Opening all 22 safe tiles happens once in 2,300 rounds, which is the number of ways to place 3 mines on 25 tiles.

The payout that would leave the game with nothing, the break-even multiplier, is 1 divided by that chance: 2.02× after five picks. A game that keeps 3% pays 3% less, 1.96×. Chance times payout is 0.97 at every pick, so ₹97 comes back for every ₹100 staked wherever you cash out. The picks table shows it row by row. The same is true of the number of mines: 3 mines and 10 safe picks are exactly as likely as 10 mines and 3 picks, 19.8% either way.

How to use the calculator

Enter the tiles, the mines, the safe picks you plan to make, the edge your own app states, your stake and the rounds in a session. The tiles show how often you get that far, the payout, the expected loss and the exact chance of finishing the session ahead. The second table keeps the picks and changes the mines. Five picks with 1 mine get through 80.0% of rounds and pay 1.21×. With 10 mines they get through 5.7% and pay 17.16×. Both keep 3%, so the cost stays put and only the ride changes.

If your app does not state its edge, type the multiplier it shows after those picks. Say it shows 1.9× after 5 safe picks on 25 tiles with 3 mines. Break-even there is 2.02×, so that multiplier keeps 5.8% of every stake. A shown multiplier above break-even cannot be right for a game that keeps anything, so check the numbers you typed.

Practice mode, and what it teaches

Press Start, open tiles, and cash out when you like. Each safe pick shows the chance that the next tile is safe, a fresh gamble every time. Auto-play opens the number of tiles you set and cashes out, round after round. With five picks, 100 rounds at ₹100 lose ₹300 on average, though about 35% of such sessions finish ahead, and the longest run of lost rounds to expect is 6.

The tap test lays 2,000 random layouts and tries four ways of choosing tiles. All four land close to 49.6%, because with random mines no tile is likelier to be clear than another.

Why a scanner, hack or predictor cannot see the mines

A scanner would have to know which of the 2,300 layouts the game picked. Where a game keeps its layout on the operator’s side, there is nothing on your phone to read, and a layout drawn at random each round gives no clue about the next. What these tools do have is convincing screenshots. A blind first tap is safe 88% of the time here, and ten safe picks in a row turn up in about one round in five by luck alone. To test a predictor, count how often its first pick is safe over many rounds. It has to beat 88% just to equal a guess. Predictor apps shows a 100-round test, and Telegram signal groups explains who sells them.

What this page cannot tell you

We do not know any app’s grid, mine count or edge, and we cannot see how it lays its mines. Some apps round their multipliers or add features such as automatic cash-out, so use the figures your own app states. Before you play, decide a limit with the daily limit guide. The Aviator, Plinko and Dice odds calculators apply the same arithmetic to other games. More checks are on the free tools page, and the games guide covers the game types an app may list.

Common questions

Can a Mines scanner or predictor show where the mines are?

No. To show safe tiles, a tool would have to know which layout the game picked, and in a game that draws its layout at random each round, no earlier round says which comes next. On a 25-tile grid with 3 mines there are 2,300 equally likely layouts. A blind first tap is safe 88% of the time, which is why screenshots of safe picks prove nothing.

Does tapping corner tiles, or the same tiles every round, make Mines safer?

No. When mines are laid at random, every set of tiles is equally likely to be clear. The tap test on this page tries the top rows, the bottom rows, spread tiles and random tiles on the same layouts, and all four get through about as often as the formula says. We cannot see how an app lays its own mines.

Is it better to play Mines with more mines or fewer?

Neither is cheaper. More mines make each safe pick less likely and the payout bigger, but the game keeps the same share of your stake at any mine count. Five safe picks with 1 mine get through 80.0% of rounds, and with 10 mines 5.7%. At a 3% edge both give back about ₹97 for every ₹100 staked.

How can I find out how much my Mines app keeps?

Type the multiplier your app shows after a set number of safe picks into the last box of the calculator. It compares that with the break-even multiplier for your grid and shows the share the app keeps. For example, 1.9× after 5 safe picks on 25 tiles with 3 mines keeps about 5.8%. Apps may round, so treat the answer as an estimate.

Is the practice grid the same as the Mines game in my app?

No. The practice grid lays mines with random numbers from your browser, uses the grid, mines and edge you set, and pays pretend money. It shows how rounds tend to run. We cannot see inside any app, so it cannot show how yours behaves.

Is anything I type into the Mines calculator saved or sent?

No. Everything is worked out on your own device and nothing is uploaded. If you press the copy-link button, your numbers go into the link after the # sign, which a website never receives.

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