Exact sum (= n)
Add every score in the region. The total must equal the printed target exactly.
Each colored region represents a stage of face swap review. Reveal paired score tiles until every sum, comparison, equality, and difference rule is satisfied.
Practice solver
Click an empty cell to reveal the paired tile that belongs there, or select a tile from the assistant tray. Click a placed tile again to remove it.
Constraint guide
A rule applies to all cell values inside its colored region, even when a paired tile crosses from one region into another.
Add every score in the region. The total must equal the printed target exactly.
The region total must sit strictly above or below the target; equality does not satisfy the rule.
Every cell in the region must show the same score, regardless of which paired tile supplies it.
No two cells in that region may share a score. Blank regions accept any value.
Deduction strategy
The solver can reveal every answer, but the stronger learning path is to predict a placement first and use the assistant only to verify the smallest uncertain step.
An equal region or a small exact sum usually rejects more tiles than a broad greater-than rule.
A 0 or 6 strongly affects small less-than and large greater-than targets, making these tiles easier to place.
When one half satisfies a region but the other half breaks its neighbor, the entire placement is impossible.
After a tile is placed, recalculate each touched region and note the exact score still required.
A blank or wide comparison region accepts many values, so solve it after more restrictive areas.
Click one cell or use Reveal next instead of exposing the whole board, then continue the deduction yourself.
Questions and answers
No. All boards, values, regions, labels, and explanations are original and themed around face swap quality review. The tool does not import or reproduce a commercial daily puzzle.
They are fictional inspection-strength scores from 0 to 6. They exist only for the logic exercise and are not generated from a real photo.
Click a paired tile in the tray, click any empty board cell, or use Reveal next. Each action exposes only one correct paired placement.
Yes. Click either its tray card or one of its occupied board cells again. Reset board removes every placement without changing difficulty.
No. Each level has a different grid size, tile set, region layout, and mix of constraints. Changing level resets current progress.
No. It teaches constraint reasoning only. Authenticity decisions require source context, provenance, metadata, and careful visual or forensic review.
Face Swap Quality Grid is an independent educational logic tool. It is not affiliated with, endorsed by, or a reproduction of The New York Times or any commercial domino game.
Move from numbers to pixels
Artifact Spotter replaces numeric constraints with one deliberate image defect. Find the weak region in three attempts and read the explanation.