Draw on Edges: ON 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

Selection: battleship
Variation of standard Battleships rules. Instead of exterior clues, clues inside the grid indicate the number of adjacent squares, including diagonally adjacent squares, containing ship segments. Ships do not sit on cells with numbers.

For automatic solution checking, either (A) all the ship segments must be marked using Composite / Object / Battleship or (B) all cells with ship segments (including the given cells) must be shaded in black or a shade of gray using Surface. (Note that if you are marking off the ship inventory below the puzzle, you should use any color but black or a shade of gray which will affect the shading check.)
CTRL + z CTRL + y Erase elements that belongs to the selected mode Erase problem or solution grid

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