- Code: Select all
*-----------*
|9.8|6..|1.4|
|...|...|.5.|
|4.7|8.5|.6.|
|---+---+---|
|5.6|2..|.8.|
|...|...|6..|
|..4|..3|..5|
|---+---+---|
|6..|.9.|...|
|.85|1..|.7.|
|7..|..8|...|
*-----------*
Play/Print this puzzle online
*-----------*
|9.8|6..|1.4|
|...|...|.5.|
|4.7|8.5|.6.|
|---+---+---|
|5.6|2..|.8.|
|...|...|6..|
|..4|..3|..5|
|---+---+---|
|6..|.9.|...|
|.85|1..|.7.|
|7..|..8|...|
*-----------*
9 5 8 | 6 b237 a27 | 1 3-2 4
1 6 23 | 349 234 249 | 8 5 7
4 23 7 | 8 1 5 | 239 6 29
------------------------+----------------------+---------------------
5 39 6 | 2 c47 19 | 47 8 13
23 7 239 | 5 8 149 | 6 49 13
8 1 4 |d79 6 3 | 27 d29 5
------------------------+----------------------+---------------------
6 234 123 | 347 9 247 | 5 1234 8
23 8 5 | 1 234 6 | 2349 7 29
7 2349 1239 | 34 5 8 | 234 1234 6
*--------------------------------------------------------------*
| 9 5 8 | 6 27-3 27 | 1 c23 4 |
| 1 6 23 | 349 a234 249 | 8 5 7 |
| 4 23 7 | 8 1 5 | 239 6 29 |
|--------------------+--------------------+--------------------|
| 5 39 6 | 2 a47 19 |b47 8 13 |
| 23 7 239 | 5 8 149 | 6 c49 13 |
| 8 1 4 | 79 6 3 | 27 c29 5 |
|--------------------+--------------------+--------------------|
| 6 234 123 | 347 9 247 | 5 1234 8 |
| 23 8 5 | 1 a234 6 | 2349 7 29 |
| 7 2349 1239 | 34 5 8 | 234 1234 6 |
*--------------------------------------------------------------*
*-----------------------------------------------------------*
| 9 5 8 | 6 a27-3 27 | 1 d23 4 |
| 1 6 23 | 349 234 249 | 8 5 7 |
| 4 23 7 | 8 1 5 | 239 6 29 |
*-------------------+-------------------+-------------------|
| 5 39 6 | 2 b47 19 |c47 8 13 |
| 23 7 239 | 5 8 149 | 6 c49 13 |
| 8 1 4 | 79 6 3 | 27 c29 5 |
*-------------------+-------------------+-------------------|
| 6 234 123 | 347 9 247 | 5 1234 8 |
| 23 8 5 | 1 234 6 | 2349 7 29 |
| 7 2349 1239 | 34 5 8 | 234 1234 6 |
*-----------------------------------------------------------*
*------------------------------------------------------------*
| 9 5 8 | 6 237 27 | 1 23 4 |
| 1 6 23 | 349 234 249 | 8 5 7 |
| 4 23 7 | 8 1 5 |a*239 6 *29 |
*-------------------+-------------------+--------------------|
| 5 39 6 | 2 b47 19 | a47 8 13 |
| 23 7 239 | 5 8 149 | 6 49 13 |
| 8 1 4 | 79 6 3 | 27 29 5 |
*-------------------+-------------------+--------------------|
| 6 234 123 | 347 9 247 | 5 1234 8 |
|c23 8 5 | 1 c234 6 |a*2349 7 *9-2 |
| 7 2349 1239 | 34 5 8 | a234 1234 6 |
*------------------------------------------------------------*
+--------------+-------------+--------------+
| 9 5 8 | 6 237 27 | 1 23 4 |
| 1 6 23 | 349 234 249 | 8 5 7 |
| 4 23 7 | 8 1 5 | 239 6 29 |
+--------------+-------------+--------------+
| 5 39 6 | 2 47 19 | 47 8 13 |
| 23 7 239 | 5 8 149 | 6 49 13 |
| 8 1 4 | 79 6 3 | 27 29 5 |
+--------------+-------------+--------------+
| 6 234 123 | 347 9 247 | 5 1234 8 |
| 23 8 5 | 1 234 6 | 2349 7 29 |
| 7 2349 1239 | 34 5 8 | 234 1234 6 |
+--------------+-------------+--------------+
SteveG48 wrote:Marty, I don't see how your DP works, or how the strong link you've written leads to an elimination.
Marty R. wrote:SteveG48 wrote:Marty, I don't see how your DP works, or how the strong link you've written leads to an elimination.
The strong inference that shows is really more of a narrative, telling what I did without notation, which I didn't think was necessary in this case. To kill the DP, either r12c5 is 4 or 7, creating a pseudo cell which combines with r4c5 to form the 47 naked pair, eliminating 4 from r8c5. The other DP killer is 9 in r3c7. Making eliminations from either killer yields several common outcomes.
+--------------+-------------+--------------+
| 9 5 8 | 6 237 27 | 1 3-2 4 |
| 1 6 23 | 349 234 249 | 8 5 7 |
| 4 23 7 | 8 1 5 | 239 6 a29 |
+--------------+-------------+--------------+
| 5 39 6 | 2 e47 19 | 47 8 13 |
| 23 7 239 | 5 8 149 | 6 49 13 |
| 8 1 4 | f79 6 3 | 27 g29 5 |
+--------------+-------------+--------------+
| 6 234 123 | 347 9 247 | 5 1234 8 |
| 23 8 5 | 1 d234 6 | c2349 7 b29 |
| 7 2349 1239 | 34 5 8 | 234 1234 6 |
+--------------+-------------+--------------+