The New Sudoku Players' Forum

[Fortesque92]

https://postimg.cc/k2TgZyTb

Found an X-wing on 9's then got stuck!

[Leren]

Code: Select all

2...354..5.7...1...4...6..8.....4.8..93.7.54..5.9.....6..3...2...5...3.4..842...5

After the XWing there is also a Swordfish in 6's c378 r169 which removes some 6's. However you can pass on both of those and just use the following ER, some singles and a pointing pair of 9's in Column 9 to finish the puzzle.

Code: Select all

*-----------------------------------------------*
| 2    168  169 | 178  3   5    | 4   679  679  |
| 5    68   7   | 28   4   289  | 1   3    269  |
| 3    4   b19  | 27  a19  6    | 27  5    8    |
|---------------+---------------+---------------|
|c17  c167  2   | 5    6-1 4    | 9   8    3    |
| 8    9    3   | 126  7   12   | 5   4    16   |
| 4    5    16  | 9    8   3    | 267 167  1267 |
|---------------+---------------+---------------|
| 6    17   4   | 3    5   179  | 8   2    179  |
| 179  2    5   | 168  169 1789 | 3   179  4    |
| 179  3    8   | 4    2   179  | 67  1679 5    |
*-----------------------------------------------*

Empty Rectangle in 1's: Base Cells r3c3 r3c5 + Empty Rectangle Box 4 + Target Cell r4c5 => - 1 r4c5.

Leren

[Fortesque92]

Damn, I searched for ER's but missed that one, gotta keep practising. Thanks!