Puzzle Setup

ready

Difficulty

Grid Size

Index (optional)

Solution Check

Choose difficulty + grid, then click Generate.

Difficulty

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Grid

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Seed / Trace

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Index

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Cell States

Unknown — not yet decided

White — this number stays visible

Black — this cell is blacked out

Amber — duplicate whites in row/column

Red — adjacent blacks (illegal)

Blue — connectivity warning (soft)

Click a cell to cycle: Unknown → White → Black → Unknown

1.No duplicate numbers among white cells in any row or column.

2.No two black cells may be adjacent horizontally or vertically.

3.All non-black cells must form a single connected region.

■ Pack-Verified — Grid — Trace —

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Choose difficulty + grid, then click Generate Puzzle.

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