Case File 02

Polarity Grid

A minimalist deduction puzzle built on probing, propagation, and clean logic.

Tap to probe. Watch the signal propagate. Use what you reveal to deduce what you can’t see — and clear the grid within your probe budget.

Signal-based discovery

Propagation you can plan

Every probe follows strict rules (direction, walls, and polarity constraints). Learn to aim for high-yield reveals and close the grid with fewer probes.

Signal propagation deductionTight probe budgets per levelClean visuals, high satisfaction reveals

Gameplay overview

How Polarity Grid plays

Probe → propagate → reveal

Each probe triggers a signal that travels across the board and reveals cells based on strict propagation rules.

Polarity constraints

Reveals aren’t random — polarity rules create guaranteed structure you can use to deduce safe moves.

Directional strategy

Propagation respects direction. Choosing when and where to probe is the core decision, not pure trial-and-error.

Walls and blockers

Barriers cut signal lines and create pockets. Use them to isolate sections and reduce wasted probes.

Efficiency by design

Every level has a tight probe budget. Cleaner lines and higher-yield probes feel instantly rewarding.

Dopamine-forward feedback

Impactful wave, micro-shakes, and satisfying reveal pulses make every successful probe feel earned.

How it works

From first probe to full clear

Step 1

Read the board

Start with what you know: visible cells, constraints, and where high-yield propagation lines could form.

Step 2

Pick a probe tile

Spend one probe to trigger the signal. The goal is maximum information — not just revealing a single cell.

Step 3

Watch propagation

The signal travels, interacts with walls, and reveals a chain of tiles. This is your new information.

Step 4

Deduce the hidden structure

Use polarity rules and revealed segments to infer safe areas and eliminate low-value guesses.

Step 5

Close efficiently

Finish the remaining pockets with minimal probes and keep your run clean under the budget.

Gameplay screenshots

Polarity Grid screenshots

Polarity Grid level with hidden tiles and a probe counter, ready for a propagation reveal

Choose a probe target and plan for a high-yield propagation line.

A propagation reveal in progress, with tiles lighting up along the signal path

Propagation reveal: watch the signal travel and expose new polarity information.

Level overview UI showing remaining probes and current progress on the grid

Tight budgets: track probes, progress, and the remaining unknown pockets.

A level featuring walls or blockers that redirect or stop propagation lines

Walls create pockets and force smarter probe placement.

Gameplay HUD emphasizing probe efficiency and clean completion

Clean clears feel better: fewer probes, stronger deductions.

End-of-level summary showing probes used vs budget and completion status

Review your efficiency and push for tighter clears.

Session results screen showing completed levels and overall performance

Track momentum and keep climbing into harder layouts.

Frequently asked questions

Polarity Grid FAQ

What kind of game is Polarity Grid now?

It’s a deduction puzzle built around probing and signal propagation. You reveal tiles through rules-driven chains and use constraints to finish within a probe budget.

Do I need to guess?

You’ll sometimes take calculated risks, but the game is designed to reward planning: pick probes that maximize information and reduce uncertainty fast.

What’s the main skill to improve?

Learning which probes generate the biggest reveals, and how to use polarity constraints + walls to deduce the remaining pockets efficiently.

Why do some probes reveal almost nothing?

Propagation is rule-based. If a probe can’t travel far (direction, blockers, dead paths), it yields less. Part of mastery is avoiding low-value probes.

Is it good for short sessions?

Yes. Levels are compact and satisfying — each clear is a quick logic hit with a strong reveal payoff.

Deduction + propagation

Start your next Polarity Grid clear

Probe with intent, ride the propagation wave, and finish levels with fewer probes than you thought possible.