The New Sudoku Players' Forum

[Hajime]

Windoku to solve with a Skyscraper variant and some basic methods

Code: Select all

  . . . . 6 . . . .   
  . 1 . . . . . 6 .   
  . . . 4 . 1 . . .   
  . 6 5 . 9 . 4 2 .   
  . . 8 . 2 . 6 . .   
  . 3 9 . 8 . 7 5 .   
  . . . 8 . 6 . . .   
  . 4 . . . . . 8 .   
  . . . . 1 . . . .   Turbot Crane in visible Windoku region

  . . . . . . . . .   
  . . 7 . 1 . 4 . .   
  . 1 . 4 . 6 . 2 .   
  . . . . 9 . . . .   
  . 5 3 . 2 . 9 6 .   
  . . . . 3 . . . .   
  . 3 . 9 . 2 . 4 .   
  . . 5 . 4 . 7 . .   
  . . . . . . . . .   SkyScraper in 9th (invisible) Windoku region



[creint]

Both solved with only 1 layer of locked singles.

[Hajime]

Both solved with only 1 layer of locked singles.

Interesting.... Can you show the whole solution path?

[creint]

After singles+locked singles in your program

First one
Locked 7 in row 2, -7r3c5
Locked 7 in windoku 2 (r2c6+r3c8), -7r3c5
Locked 7 in row 3, -7r2c6
Locked 7 in hidden windoku (r2c1+r3c5), -7r2c6

Second one
Locked 8 in row 8, -8r7c5
Locked 8 in windoku 3 (r7c3+r8c4), -8r7c5

You program does not display all possible solutions for each method.
The whole solution path can give additional information, let me know if you still need that.

[Hajime]

Thanks, I will look into this.

[m_b_metcalf]

These puzzles are rated SE=2.9. If you remove the 1 and 3 in column 5 of the second one, then left-right symmetry is preserved and the rating rises.

Regards,

Mike