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How to Play Kurodoko

Objective

Fill some cells with black dots so that all white cells form a single connected area and all numbered cells show the correct count of visible white cells.

Rules

  • All white cells must be connected horizontally or vertically (not diagonally) to form a single area.
  • Black cells cannot be adjacent horizontally or vertically (only diagonally).
  • A number in a cell indicates how many white cells (including itself) can be seen in a straight line horizontally and vertically from that cell. Black cells block the line of sight.

Example

3
5
3
5
3

In this example, a cell with number 3 means you can see exactly 3 white cells (including itself) when looking in all four directions (up, down, left, right). Black cells block the view.