Can some kind soul please put me out of misery with this one...
- Code: Select all
| 1 3 | 2
5 3 | 2 7 | 8 9
| | 3
----------------------
2 8 | 6 | 9
5 4 | 2 | 1
9 | 5 | 2 7
----------------------
9 | |
5 | 4 | 7 9
3 | 9 1 |
Many thanks...
| 1 3 | 2
5 3 | 2 7 | 8 9
| | 3
----------------------
2 8 | 6 | 9
5 4 | 2 | 1
9 | 5 | 2 7
----------------------
9 | |
5 | 4 | 7 9
3 | 9 1 |
Animator wrote:Can you repost your puzzle? and use * or . for empty cells (a space is rather confusing)
* * * | 1 3 * | * * 2
* 5 3 | 2 * 7 | 8 9 *
* * * | * * * | * * 3
----------------------
2 8 * | * * 6 | 9 * *
5 * 4 | * 2 * | 1 * *
* * 9 | 5 * * | * 2 7
----------------------
9 * * | * * * | * * *
* * 5 | 4 * * | * 7 9
3 * * | * 9 1 | * * *
. . . | 1 3 . | . . 2
. 5 3 | 2 . 7 | 8 9 .
. . . | . . . | . . 3
----------------------
2 8 . | . . 6 | 9 . .
5 . 4 | . 2 . | 1 . .
. . 9 | 5 . . | . 2 7
----------------------
9 . . | . . . | . . .
. . 5 | 4 . . | . 7 9
3 . . | . 9 1 | . . .
The value 1 in Box [3,1] must lie in Row 8.
The value 4 in Box [1,1] must lie in Column 1.
The value 5 in Box [3,3] must lie in Row 9.
The value 7 in Box [1,1] must lie in Column 1.
The value 8 in Box [2,2] must lie in Row 6.
The values 1, 4 and 8 occupy the cells (4,5), (6,5) and (6,6) in some order.
The cell (7,5) is the only candidate for the value 7 in Column 5.
Sue De Coq wrote:The value 1 in Box [3,1] must lie in Row 8.
The value 4 in Box [1,1] must lie in Column 1.
The value 5 in Box [3,3] must lie in Row 9.
The value 7 in Box [1,1] must lie in Column 1.
The value 8 in Box [2,2] must lie in Row 6.
The values 1, 4 and 8 occupy the cells (4,5), (6,5) and (6,6) in some order.
The cell (7,5) is the only candidate for the value 7 in Column 5.
I think it's safe to ignore the first four observations for immediate purposes. Once we've restricted the position of the 8 in Box 5, we observe that the value 7 can't occupy the cell r4c5, which leaves just a single candidate position in Column 5.
Sue De Coq wrote:Here's some solver analysis:The value 1 in Box [3,1] must lie in Row 8.
The value 4 in Box [1,1] must lie in Column 1.
The value 5 in Box [3,3] must lie in Row 9.
The value 7 in Box [1,1] must lie in Column 1.
The value 8 in Box [2,2] must lie in Row 6.
The values 1, 4 and 8 occupy the cells (4,5), (6,5) and (6,6) in some order.
The cell (7,5) is the only candidate for the value 7 in Column 5.
Doc wrote:Sue De Coq wrote:Here's some solver analysis:The value 1 in Box [3,1] must lie in Row 8.
The value 4 in Box [1,1] must lie in Column 1.
The value 5 in Box [3,3] must lie in Row 9.
The value 7 in Box [1,1] must lie in Column 1.
The value 8 in Box [2,2] must lie in Row 6.
The values 1, 4 and 8 occupy the cells (4,5), (6,5) and (6,6) in some order.
The cell (7,5) is the only candidate for the value 7 in Column 5.
Why must the value 4 in Box [1,1] lie in Column 1? There are also two candidates in row 2.
I'll start with those two for now - I'm obviously missing something!
Doc wrote:Sue De Coq wrote:Here's some solver analysis:The value 1 in Box [3,1] must lie in Row 8.
The value 4 in Box [1,1] must lie in Column 1.
The value 5 in Box [3,3] must lie in Row 9.
The value 7 in Box [1,1] must lie in Column 1.
The value 8 in Box [2,2] must lie in Row 6.
The values 1, 4 and 8 occupy the cells (4,5), (6,5) and (6,6) in some order.
The cell (7,5) is the only candidate for the value 7 in Column 5.
I'm fairly new to this, although having some success, but am confused by the above.
Why must the value 1 in Box [3,1] lie in Row 8? There is also a candidate in row 9.
Why must the value 4 in Box [1,1] lie in Column 1? There are also two candidates in row 2.
I'll start with those two for now - I'm obviously missing something!
Thanks in advance,
Chris.