- Code: Select all
*-----------*
|..7|..5|...|
|85.|...|9..|
|61.|7.8|...|
|---+---+---|
|...|..1|5..|
|...|.2.|...|
|..6|9..|...|
|---+---+---|
|...|6.3|.78|
|..4|...|.93|
|...|8..|1..|
*-----------*
Play/Print this puzzle online
*-----------*
|..7|..5|...|
|85.|...|9..|
|61.|7.8|...|
|---+---+---|
|...|..1|5..|
|...|.2.|...|
|..6|9..|...|
|---+---+---|
|...|6.3|.78|
|..4|...|.93|
|...|8..|1..|
*-----------*
+--------------+-----------+---------------+
| 234 234 7 | 12 9 5 | 38 1368 16 |
| 8 5 23 | 4 16 26 | 9 13 7 |
| 6 1 9 | 7 3 8 | 24 245 245 |
+--------------+-----------+---------------+
| 2479 2479 8 | 3 67 1 | 5 246 2469 |
| 349 3479 1 | 5 2 467 | 378 3468 469 |
| 5 2347 6 | 9 8 47 | 37 1234 124 |
+--------------+-----------+---------------+
| 129 29 5 | 6 14 3 | 24 7 8 |
| 127 8 4 | 12 5 27 | 6 9 3 |
| 237 6 23 | 8 47 9 | 1 245 245 |
+--------------+-----------+---------------+
Marty R. wrote:I'll try some notation.
(2=3)r9c3-(3=2)r2c3-(2=6)-(6=1)-(1=4)-->r7c7<>4.
I know there's notation that belongs in front but my lessons haven't gotten that far.
*-----------------------------------------------------------*
| 234 234 7 | 12 9 5 | 38 1368 16 |
| 8 5 23 | 4 16 26 | 9 13 7 |
| 6 1 9 | 7 3 8 |a24 *245 *245 |
|-------------------+-------------------+-------------------|
| 2479 2479 8 | 3 67 1 | 5 246 2469 |
| 349 3479 1 | 5 2 467 | 378 3468 469 |
| 5 2347 6 | 9 8 47 | 37 1234 124 |
|-------------------+-------------------+-------------------|
| 129 29 5 | 6 14 3 | 24 7 8 |
| 127 8 4 | 12 5 27 | 6 9 3 |
| 237 6 a23 | 8 47 9 | 1 *245 *245 |
*-----------------------------------------------------------*
(4r3c7=3r9c3)dp:(45)r39c89-(3=2)r2c3-(2=6)r2c6-(6=1)r2c5-(1=4)r7c5 => -4r7c7
*-----------------------------------------------------------*
| 234 234 7 | 12 9 5 | 38 1368 16 |
| 8 5 b23 | 4 b16 b26 | 9 13 7 |
| 6 1 9 | 7 3 8 | 24 245 245 |
|-------------------+-------------------+-------------------|
| 249 2479 8 | 3 67 1 | 5 246 2469 |
| 349 3479 1 | 5 2 467 | 378 3468 469 |
| 5 2347 6 | 9 8 47 | 37 1234 124 |
|-------------------+-------------------+-------------------|
| 19-2 9-2 5 | 6 a14 3 |a42 7 8 |
| 17 8 4 | 12 5 27 | 6 9 3 |
| 237 6 c23 | 8 47 9 | 1 245 245 |
*-----------------------------------------------------------*
als xy-wing
(2=1)r7c57-(1=3)r2c356-(3=2)r9c3 => -2r7c12,r9c89; stte