The New Sudoku Players' Forum

[greenwar]

any idea?

[Leren]

Code: Select all

*---------------------------------------------*
| 8    1    2 | 3    49     46   | 7 469  5   |
| 35   35   7 | 246  2489   2468 | 1 469  469 |
| 6    9    4 | 1    5      7    | 8 3    2   |
|-------------+------------------+------------|
| 2    6    9 | 47   1478   5    | 3 17   18  |
| 5-7  58-7 1 |a27   6      3    | 4 279  89  |
| 4   c78   3 | 9    128-7 b28   | 5 1267 168 |
|-------------+------------------+------------|
| 1    37   5 | 2467 247    246  | 9 8    34  |
| 9    4    6 | 8    3      1    | 2 5    7   |
| 37   2    8 | 5    47     9    | 6 14   134 |
*---------------------------------------------*

XY Wing (XY Chain Length 3): (7=2) r5c4 - (2=8) r6c6 - (8=7) r6c2 => - 7 r5c12, r6c5; stte

Leren

[greenwar]

thanks
but how to understand that:

- 7 r5c12, r6c5; stteLeren

?

[greenwar]

ok i got it by reading this https://www.learn-sudoku.com/xy-wing.html
many thanks!

[Mauriès Robert]

Hi greenwar,
Problem: the puzzle that is now displayed is not the original puzzle. It is from what is next move2?
Robert