How to play Mine Finder
rules · strategies · worked example

How to play Mine Finder

Use the open numbers to flag every mine in the field — every puzzle can be solved by logic, without guessing. Also known as Minesweeper-style logic puzzle, No-guess minefield.

▶ Play Mine Finder⊞ Open the solver

The rules

  1. Each open number counts the mines in the eight squares around it.
  2. Open blank squares have no mines around them.
  3. Closed squares are either safe or hide a mine; the total number of mines is given.
  4. Flag every mine — the puzzle is solved when all of them are found.

Playing Mine Finder on Puzzle Solvers

  1. Choose a field and a difficulty, then press New Puzzle.
  2. Tap a closed square to flag a mine, again to mark it safe, again to clear. Drag to do several.
  3. Numbers turn green when they have all their flags, red when they have too many.
  4. Hint shows the next safe square or mine and why — single numbers, pairs of numbers and the mine total.

Open the Mine Finder game →

Using the Mine Finder solver

  1. Choose the field size and type the open numbers (or press Sample).
  2. Press Solve and step through: single numbers, pairs of numbers and the total.

Open the solver →

A worked example

A 1 next to a 1 along a wall: the squares the second 1 sees that the first doesn’t are safe.

A 2 with only two closed neighbours: both are mines — and any number already touching them may now be satisfied.

Strategies

Common mistakes

Where it comes from

The minefield game became famous on home computers in the 1990s. Logic puzzles built on its numbers — with no guessing — are a popular twist.

Frequently asked questions

Is there ever a 50/50 guess?

No — every puzzle is generated and checked so that each mine can be found by logic.

What does a blank open square mean?

It has no mines among its eight neighbours.

Is there always one answer?

Yes — every puzzle here has exactly one solution.

Can I solve a position from the game?

Yes — open the Mine Finder Solver, type the open numbers and the mine total, and press Solve.

Keep going

All guides: How to play every puzzle and game.