Draw on Edges: OFF Panel: OFF

     

  • Check All
  • Surface
  • Line Normal
  • Line Diagonal
  • Line Free
  • Line Middle
  • Line Helper
  • Edge Normal
  • Edge Diagonal
  • Edge Free
  • Edge Helper
  • Edge Erase
  • Wall
  • Number Normal
  • Number L
  • Number M
  • Number S
  • Candidates
  • Number 1/4
  • Number Side
  • Sudoku Normal
  • Sudoku Corner
  • Sudoku Centre
  • Shape
  • Special
  • Thermo
  • Sudoku Arrow
  • Composite

Shade some cells so that each circled number represents the total count of shaded cells in connected groups sharing an edge with that number. Cells with circles cannot be shaded.

For automatic solution checking, the shaded cells must be marked in black or dark gray.
CTRL + z CTRL + y Erase elements that belongs to the selected mode Erase problem or solution grid

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