Spectrum 67 AI-generated Copy + Revise

4 grids · reconstruct grid #4 · NARC on 4/8 models

Grid Sequence
A shape is being filled from the top-left corner. Each step, the fill expands one cell in each cardinal direction from all currently filled cells (marked 1). Walls (marked 9) block the fill. 0 is empty space. Show the next fill step.
Your Answer

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