On a fixed 9 by 9 Minesweeper board with 81 covered cells and 10 hidden mines, comparing two solving approaches means playing the same deterministic layout twice — once with method A and once with method B — so any difference in revealed safe cells traces back to the approach you chose. The Minesweeper tool keeps the mine set identical across restarts, so a flag-first method and a numbers-only method can be tested against the same 71 safe cells without any board luck distorting the result. You move the selected cell with the arrow keys, reveal with Space or Enter, and toggle a flag with F, so the only variable between the two runs is your decision logic. Each revealed numbered cell shows the exact count of mines among its horizontal, vertical, and diagonal neighbors — that count is the only piece of evidence either approach gets to work with. Comparing approaches on a fixed board turns Minesweeper from a one-shot puzzle into a repeatable experiment in deduction.
What "Comparing Two Approaches" Means in Minesweeper
The phrase "comparing two approaches in Minesweeper" almost always describes one of three practical questions a player has. The first is method versus method: does marking every suspected mine with a flag before revealing lead to fewer accidental losses than reading the numbers and revealing immediately? The second is coverage versus caution: should you spread reveals across the whole board, or concentrate on the region with the clearest numbers first? The third is beginner heuristics versus careful number-reading: do the simple patterns such as "1-2-1" and "1-1" actually help, or do they just add noise? All three questions become answerable on a single fixed board, because the mine layout does not change between attempts.
Two approaches can be compared honestly only when the board, the controls, and the score formula are identical and the player is the only source of variation. This Minesweeper version satisfies that constraint: 81 cells arranged in nine rows and nine columns, 10 mines hidden among them, 71 safe cells to reveal, and a 10-point score for every safe cell revealed. Because the board is fixed and Restart does not move the mines, the same cell that hides a mine in your first attempt hides the same mine in your second attempt. Any difference in score, in flagged cells, or in the order of reveals can therefore be attributed to the approach you chose, not to luck. The core neighbor-count rules used here follow the same conventions documented in the public GNOME Mines rules guide, so the comparison you make is grounded in logic the wider Minesweeper community accepts.
Setting Up the Fixed Board for a Fair Comparison
Before you run either approach, lock down the inputs that have to stay the same. The board is 9 rows by 9 columns, which gives 81 covered cells. Ten of those cells contain mines, and the remaining 71 are safe. Your cursor begins on a covered cell that is guaranteed safe, so you can press Space or Enter immediately without fear of an early detonation. Arrow keys move the selected cell, Space or Enter reveals it, and F toggles a flag on a covered cell. Revealed cells cannot be flagged. Space and Enter do nothing on a flagged cell, which is the design choice that lets you treat flagging as a separate decision from revealing instead of an automatic side-effect of opening a square.
| Cell position | Maximum neighbors | Notes for comparison |
|---|---|---|
| Corner cell (4 on the board) | 3 | Revealed numbers in a corner can show 0, 1, 2, or 3 |
| Edge cell, non-corner (28 on the board) | 5 | Revealed numbers on an edge can show 0 through 5 |
| Interior cell (49 on the board) | 8 | Interior numbers range from 0 through 8 and carry the densest evidence |
The table is worth memorising because the kind of evidence each approach sees depends on it. A flag-first approach gathers most of its evidence from interior cells with high counts, where the suspected mines cluster densely. A numbers-only approach gathers most of its evidence from edge cells with low counts, where each single number has more surrounding free space to weigh against. Both approaches receive exactly the same neighbor counts, so the comparison is fair at the data layer. The number of flags you can place at one time is also capped at ten, matching the board's mine total, so neither approach can out-flag the board's actual mine count.
How to Run Two Approaches Against the Same Mines
Use this six-step procedure to test one method against another on the same fixed layout.
- Open Minesweeper and note the initial cursor position — the cell underneath is always safe, so press Space or Enter to start your first reveal without any prior flagging.
- Pick approach A. For example, "numbers only": reveal a cell only when its neighbors are mathematically certain safe, and skip flagging entirely so the only variable is your reading of the counts.
- Play approach A to completion. Watch the status line for the count of safe cells revealed and the running score of 10 points per reveal. If a mine ends the round, select Restart and continue the same approach on the same mine set.
- When approach A finishes, write down your final score, the cells you revealed, and the cells you would flag if you could see mines. Then select Restart so the board returns to its original 81-cell state with the same 10 mine locations.
- Pick approach B. For example, "flag first": press F on every covered cell you suspect, then reveal only the cells that are provably safe given those flags, accepting the cap of ten simultaneous flags.
- Play approach B to completion on the identical layout. Compare the two scores, the two sets of revealed cells, and the two sets of flagged cells. The mine positions are unchanged, so any divergence in outcome comes from the decision logic.
If you want to keep the comparison tight, run each approach twice and average the scores. A single accidental mine loss on approach A or B can look like a method failure when it might just be an unlucky first-reveal choice. Restart removes that confound because the mine layout does not change, so an unlucky first click is a property of the approach, not of the layout. The mouse workflow also mirrors the keyboard one — a normal click reveals and the context menu toggles a flag — so any reader who prefers pointer input can run the same procedure without changing the comparison.
Reading the Numbers: How Each Cell Counts the Mines
Both approaches you are comparing rely on the same definition of a revealed number. When you reveal a cell, the browser enumerates the eight cells immediately surrounding it — every offset from minus one to plus one on both the row and column axes, excluding the cell itself — and counts how many of those neighbors are mine indices. The number you see is exactly that count. Corner cells see at most three neighbors, edge cells see at most five, and interior cells see at most eight. If a revealed cell has no adjacent mines, it opens as a blank and a queue-based flood fill expands outward through connected zero-count cells plus their bordering numbered cells, opening large safe regions in one move.
For a worked example, take a revealed 1 sitting at row 4 column 4 on the interior of the board. The browser checks the eight cells at rows 3 through 5 and columns 3 through 5, omitting the center, and finds exactly one mine index among them. Whatever your approach does with that information — flag one suspect, reveal seven safe cells, or both — is now a method choice you can record. If the same cell reveals a 2, there are two mine indices among those eight neighbors. If it reveals a 3, there are three. The neighbor count formula does not change between approaches, so the only thing being compared is what each method does with the count.
Each cell carries an accessible row, column, and state label, which means you can record the exact (row, column, value) triple for any revealed number during the comparison. A small notebook with three columns — row, column, and the approach that acted on that number — is enough to reconstruct the full decision history of either run. Because the score itself is just safe cells revealed multiplied by 10, clearing the full 71 safe cells on either approach produces 71 × 10 = 710 points, which is the same ceiling for both methods. Any gap between the two scores therefore reflects a difference in the number of safe cells each approach actually opened.
Limits of a Beginner-Board Comparison
Be honest about what the comparison can and cannot show. The fixed layout is a Lizely implementation choice made so the rules, neighbor counts, and win sequence can be tested independently; it is not the only official Minesweeper configuration. The easy board convention here is 9 by 9 with 10 mines, but larger boards with more mines and stricter density behave differently under the same two approaches. If your goal is to compare methods on an intermediate or expert board, this beginner board will not stretch the same patterns in the same way. The automated fixture on this page checks the 81-cell and 10-mine invariants, neighbor counting, zero-cell expansion, flag protection, mine loss, and a full completion sequence, which is what makes the beginner board a safe baseline for side-by-side comparison.
The score also measures only one thing. Clearing all 71 safe cells produces 710 points — a straightforward 10 points per cell, including cells opened automatically during zero expansion — and that result saves as the local best score in the browser's localStorage. The score does not measure how many flags you placed, how few flags were wrong, or how quickly you finished, because there is no timer and no public leaderboard. If your comparison depends on a speed metric or on flag-accuracy percentage, you will need to record those by hand. Nothing is uploaded and there is no account requirement, so the comparison stays inside your own browser tab. For some readers that is a feature: the comparison stays focused on whether approach A or approach B actually reveals more of the 71 safe cells on the same fixed board.
Finally, remember that a flag is only your note. The game does not validate a flag until the round ends, so a flagged cell that turns out to be safe still counts as revealed-safe only when you remove the flag and press Space or Enter. If you want a clean comparison of "what would I have flagged" between the two approaches, track your intended flags on paper before you press F, because the F key changes both the visible state and the protection state of a cell at the same time. The boss key — Escape pressed twice within 400 milliseconds — only covers the screen with a simulated spreadsheet and does not pause any timer, since this version has no timer, so it will not interfere with your comparison.
For a related take on the same fixed board, see our guide on how to choose your next step in Minesweeper, which applies the same numbered-cell reasoning to a single move rather than to a whole approach. For the mechanics of the flag itself, our guide on whether a flag guarantees a mine in Minesweeper explains why the flag is a note, not a guarantee.