XOR Silhouette replicate target with fewest stamps

Each stamp flips covered cells (XOR). Overlap flips back. Rotate with R. Hints highlight mismatched cells (actionable).

Difficulty Grid

Moves

Move limit

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Solution overlay: shows each generating stamp as a colored silhouette outline. Overlaps are visible. Toggle it on/off without losing your board.

Select a piece, hover to preview, click to stamp.

Mismatch: — Level: 1 Recipe: —

Target (match this)

Your board (stamp here)

Hints: highlight cells where your board differs from the target (so you know what must change). Move limit: a simple difficulty brake; it forces efficiency but doesn’t define correctness.