Most minesweeper advice is a list of facts. Strategy is different: it's a decision policy — what you look at, in what order, and why, at every phase of the game. This guide organizes minesweeper into three phases (opening, mid-game, endgame) and gives each one a concrete operating procedure. If you already know the rules and the basic patterns, this is the article that turns knowledge into a game plan.

Phase 1: The Opening

The opening has exactly one job: generate information as fast as possible. You're not deducing yet; you're buying real estate.

Where to click

Click near the center. Your first click is always safe, and center clicks cascade into bigger openings more often because blank regions have more directions to grow. If the first click reveals only a couple of numbers, immediately click a second, unrelated area — two small openings beat one tiny one, and they'll usually connect later.

What a good opening looks like

The ideal opening is a large blank region with a numbered border. The border is a solved constraint ring waiting to be worked; the blank area is guaranteed-safe territory you never have to think about again. If instead you get a single number in a covered ocean, don't grind on it — open elsewhere and come back. The opening phase ends when you have a frontier long enough to feed deductions.

Phase 2: The Mid-Game Deduction Engine

The mid-game is where games are won. Your policy: never click a cell that logic hasn't certified, and run deductions in a fixed order so nothing is missed.

Step 1: The two sweep rules

After every reveal, sweep the active frontier for:

• Saturation: number = count of covered neighbors → flag them all.
• Satisfaction: number = count of surrounding flags → chord to clear the rest.

These two sweeps resolve the majority of mid-game positions. Do them in a consistent physical direction so your eyes don't loop over the same territory.

Step 2: Pairwise subtraction

When a sweep stalls, look for adjacent number pairs and subtract. The canonical case is the wall 1-2:

The "1" sees the two cells above the pair; the "2" sees those plus the third cell. One mine lives in the shared pair, so the "2"'s second mine must be the third cell. Flag it — guaranteed mine, zero risk. The same subtraction logic works for any pair where one number's covered neighbors contain the other's.

Step 3: Set reasoning for compound stalls

Harder stalls involve three or more numbers whose constraints overlap. Treat each covered cell as belonging to sets defined by the numbers that can see it. Two rules resolve almost everything:

1. Subset rule: if all covered cells visible to number A are also visible to number B, then B's "extra" cells contain exactly (B − A) mines.
2. Count closure: if the sum of a cluster's constraints forces N mines into exactly N cells, those cells are all mines and every other cell the cluster can see is safe.

This sounds abstract, but in practice it's shapes — the 1-2-1, the 1-2-2-1, the corner triads. Once you've internalized the standard patterns, you execute step 3 by recognition, not calculation.

Step 4: Geometry checks

Before declaring a stall, sweep the walls and corners. Edge numbers have 5 neighbors, corner numbers 3 — they saturate and satisfy far more often than interior numbers, and they're the most commonly forgotten region on the board.

Phase 3: The Endgame

The endgame begins when the covered area is small and disconnected — isolated pockets, corner clusters, and corridors. Now a new tool becomes decisive: mine arithmetic.

Counting mines globally

Track two numbers: mines remaining (mine counter minus your flags) and covered cells remaining. Their ratio tells you the true probability landscape:

• Many cells, few mines: dense-logic areas are done; any forced guess is probably cheap. Pick cells in open regions where a surviving reveal unlocks a chain.
• Few cells, many mines: the board is nearly all mines; don't over-think — reveal only what logic certifies and accept that some pockets are pure coin flips.
• Exactly as many mines as cells: stop revealing; flag everything left and the game ends when the last safe cell resolves. Careful — you still need the final safe reveal to win.

The 50/50 problem

The most common endgame stall: two cells, one mine, no separating information. Good players anticipate 50/50s: if a corner can become a coin flip later, resolve it early while other information might still distinguish the cells. A coin flip you take at 40% board completion is better than the same coin flip at 95% — the cost of losing is four minutes versus forty seconds.

The Guessing Policy

Every strong player follows roughly the same policy:

1. Exhaust logic first — full sweep, pairs, sets, geometry. Most "forced" guesses aren't.
2. Guess where information is dense. A guess adjacent to several numbers usually converts survival into a solved region.
3. Prefer favorable odds — a 1-in-4 corner beats a 1-in-2 corridor if both are available.
4. Guess early in a hopeless position — if the board is littered with unresolved pockets, taking risks at 50% completion costs less than taking them at 95%.
5. After a wrong guess, audit. The post-loss reveal shows all mines; ten seconds of review turns every loss into training data.

Strategy for Bean Boom's Two Modes

The framework above is tuned for classic time-attack play, which is exactly Bean Boom's Classic Mode. The Egg Mode scoring game changes the objective function slightly:

• Correct flags are weapons. Flagging a confirmed mine detonates a Bean Boom blast that reveals surrounding cells — so certainty-heavy play generates free territory and combo score.
• Momentum is a resource. The combo multiplier decays if you stall, so keep the deduction engine moving; a solved-but-slow game scores worse than a fluent one.
• Chain blasts compound. Blast radius grows with each detonation (up to a cap), and detonations cascade through nearby flagged mines — clustering your confirmed flags multiplies the payoff.

We break down the full scoring math in the high score guide.

Frequently Asked Questions