Draw on Edges: OFF Panel: OFF

     

  • Check All
  • Surface
  • Multicolor
  • Line Normal
  • Line Diagonal
  • Line Free
  • Line Middle
  • Line Helper
  • Edge Normal
  • Edge Diagonal
  • Edge Free
  • Edge Helper
  • Edge Erase
  • Wall
  • Move All
  • 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

CHAOS CONSTRUCTION
– Divide the grid into 9 regions, each made of 9 orthogonally connected cells. The regions and the grid as a whole must follow the Doppelganger rules as described below
– The digit in the top left cell of a region (ie, its leftmost cell in its highest row) is its region number. All region numbers must be different, and together they must form a set of the digits 1 to 9

DOPPELGANGER
– Every row, column, and region must contain the digit 0 always, as well as eight out of the nine digits from 1 to 9 (ie, it will be missing one digit that is not 0)
– No two rows, no two columns, and no two regions may be missing the same digit
– For each 0 in the grid, the digits missing in its row, its column, and its region must be three different digits

ARROW
– A digit in a circle indicates the sum of the digits along the connected arrow
– Digits may repeat along an arrow line if allowed by the other rules. Zeros always have a null value
– Every arrow tip must belong to a region that is missing the digit from its arrow circle (Doppelganger)
CTRL + z CTRL + y Erase elements that belongs to the selected mode Erase problem or solution grid

00:00:00:00:0

Mode: Sudoku

  • 1
  • A
  • a
  • Text