The New Sudoku Players' Forum

[tonyjer]

Hi All

This is supposed to be a level 3 puzzle whatever that means!

It is a virgin apart from r1c6 which I inserted. I have subjected it to basics like nakeds and hiddens, xwing and swordfish etc but there seems to ve too many variables. Also looked at ALS xz but no joy at this early stage.

Even tried to force a few chains to find common eliminations but nothing doing.

Have I missed an XY wing, empty rectangle or disjoint?

Any initials prompts would be much appreciated. (This one does have a unique solution)

Many thanks for your time and patience.

Antonio, Anna y Eduardo Felipe

Code: Select all

5679   3679   1   2   4   8   35679   35679   5679
259   8   2359   39   6   7   1   4   259
25679   3679   4   139   159   1359   35679   8   25679
4   2679   23679   3689   2589   23569   356789   1   56789
6789   5   3679   4   189   1369   36789   2   6789
2689   1   23679   7   2589   23569   345689   3569   45689
15679   4   5679   1689   12789   12569   56789   5679   3
1679   2   8   5   3   169   4679   679   14679
3   679   5679   1689   1789   4   2   5679   156789



[ronk]

Your puzzle has 4,592 solutions:

Code: Select all

 . . 1 2 4 8 . . .
 . 8 . . 6 7 1 4 .
 . . 4 . . . . 8 .
 4 . . . . . . 1 .
 . 5 . 4 . . . 2 .
 . 1 . 7 . . . . .
 . 4 . . . . . . 3
 . 2 8 5 3 . . . .
 3 . . . . 4 2 . .

[tonyjer]

Cant trust new technology these days.

Out of interest do you know why an electronic gizmo would produce such puzzles! I can press the solve switch and it will generate an answer which I naively thought was unique!

Thanks again