Kurodoko also known as Kuromasu is a logic puzzle with simple rules and challenging solutions.
The rules are simple. Shade some cells black guided by number clues.
- For each number, count visible white cells (including itself and other numbered cells) in straight lines up/down/left/right, stopped by black cells or grid edges; total must match the number. - Numbered cells remain white (unshaded). - All unshaded cells form a single polyomino (all whites should be connected orthogonally in a single group). - Black cells cannot touch horizontally or vertically (diagonals allowed).
Left click on a cell to make it black. Right click to mark with a dot. Click and drag to mark more than one cell.
* MO3 - Mean of 3. The average of 3 consecutive times. AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest. AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest. You need to be logged in to track your averages
