The New Sudoku Players' Forum

[Fonzarelle]

Is there a specific strategy I can use to finish this?


https://pasteboard.co/5MfNKoUQp4Bg.png

[RSW]

Code: Select all

.....2..997..1..5.4........7.......2.3..5.4.......6..3...175.....39.8.2..9..6....

 +----------+-------+-------------+
 | 3 56 c15 | 7 8 2 |d16    4   9 |
 | 9 7   2  | 6 1 4 | 3     5   8 |
 | 4 68  18 | 5 3 9 | 2    *1-6 7 |
 +----------+-------+-------------+
 | 7 4  b58 | 3 9 1 |*58-6 a68  2 |
 | 2 3   6  | 8 5 7 | 4     9   1 |
 | 1 58  9  | 4 2 6 | 58    7   3 |
 +----------+-------+-------------+
 | 8 2   4  | 1 7 5 | 9     3   6 |
 | 6 1   3  | 9 4 8 | 7     2   5 |
 | 5 9   7  | 2 6 3 | 18    18  4 |
 +----------+-------+-------------+


XY chain
(6=8)r4c8-(8=5)r4c3-(5=1)r1c3-(1=6)r1c7 => -6r4c7 -6r3c8; stte

[rjamil]

Try Bug+1 move.

R. Jamil

[Leren]

Code: Select all

*-------------------------------*
| 3  56 15 | 7 8 2 | 16   4   9 |
| 9  7  2  | 6 1 4 | 3    5   8 |
| 4 a68 18 | 5 3 9 | 2    1-6 7 |
|----------+-------+------------|
| 7  4  58 | 3 9 1 | 568 d68  2 |
| 2  3  6  | 8 5 7 | 4    9   1 |
| 1 b58 9  | 4 2 6 |c58   7   3 |
|----------+-------+------------|
| 8  2  4  | 1 7 5 | 9    3   6 |
| 6  1  3  | 9 4 8 | 7    2   5 |
| 5  9  7  | 2 6 3 | 18   18  4 |
*-------------------------------*

W Wing : (6=8)r3c2 - r6c2 = r6c7 - (8=6) r4c8 => - 6 r3c8; stte

Leren