- Code: Select all
*-----------*
|..9|.7.|32.|
|2..|96.|...|
|6..|..3|7..|
|---+---+---|
|.25|...|...|
|8.4|...|9.1|
|...|...|28.|
|---+---+---|
|..8|1..|..2|
|...|.49|..3|
|.76|.3.|5..|
*-----------*
*-----------*
|..9|.7.|32.|
|2..|96.|...|
|6..|..3|7..|
|---+---+---|
|.25|...|...|
|8.4|...|9.1|
|...|...|28.|
|---+---+---|
|..8|1..|..2|
|...|.49|..3|
|.76|.3.|5..|
*-----------*
+-------------+----------------+-------------------+
| 45 8 9 | 45 7 1 | 3 2 6 |
| 2 3 7 | 9 6 5(4) | 1 5(4) 8 |
| 6 5(4) 1 | 2 8 3 | 7 59(4) 459 |
+-------------+----------------+-------------------+
| 19 2 5 | 3-4 19 8 | 6(4) 36(4) 7 |
| 8 6 4 | 357 2 57 | 9 35 1 |
| 7 19 3 | 456 19 56(4) | 2 8 45 |
+-------------+----------------+-------------------+
| 3 9(4) 8 | 1 5 67 | 6(4) 679(4) 2 |
| 15 15 2 | 67 4 9 | 8 67 3 |
| 49 7 6 | 8 3 2 | 5 1 49 |
+-------------+----------------+-------------------+
almost x-wing on 4's in r47c78 targets the 4 in r4c4
4's unaccounted for in r23c8
r2c8 - r2c6 = r6c6 - r4c4
r3c8 - r3c2 = r7c2 - r7c7 = r4c7 - r4c4
r4c4 <> 4
ste
*--------------------------------------------*
|#45 8 9 | FB45 7 1 | 3 2 6 |
| 2 3 7 | 9 6 45 | 1 45 8 |
| 6 FA45 1 | 2 8 3 | 7 459 59-4 |
|-----------+----------------+---------------|
| 19 2 5 |-FB34 19 8 | 46 346 7 |
| 8 6 4 | 357 2 57 | 9 35 1 |
| 7 19 3 |-FB456 19 FB456 | 2 8 5-4 |
|-----------+----------------+---------------|
| 3 49 8 | 1 5 67 | 46 4679 2 |
| 15 15 2 | 67 4 9 | 8 67 3 |
|#49 7 6 | 8 3 2 | 5 1 #49 |
*--------------------------------------------*
45 8 9 | 45 7 1 | 3 2 6
2 3 7 | 9 6 a45 | 1 (b)45 8
6 45 1 | 2 8 3 | 7 e459 459
------------------------+----------------------+---------------------
19 2 5 | 34 19 8 | 46 346 7
8 6 4 | 357 2 b57 | 9 f35 1
7 19 3 | 456 19 56-4 | 2 8 g45
------------------------+----------------------+---------------------
3 49 8 | 1 5 c67 | 46 d4679 2
15 15 2 | 67 4 9 | 8 67 3
49 7 6 | 8 3 2 | 5 1 49
45 8 9 45 7 1 3 2 6
2 3 7 9 6 45 1 45 8
6 45 1 2 8 3 7 459 459
19 2 5 34 19 8 46 346 7
8 6 4 357 2 57 9 35 1
7 19 3 456 19 456 2 8 45
3 49 8 1 5 67 46 4679 2
15 15 2 67 4 9 8 67 3
49 7 6 8 3 2 5 1 49
4r9c1 => r26c6 <> 4
r9c1=4 - r1n4{c1 c4} - r2n4{c6 c8} - c9n4{r3 r6}
=> r9c1 <> 4
ste.
+---------+------------+--------------+
| 45 8 9 |h45 7 1 | 3 2 6 |
| 2 3 7 | 9 6 g45 | 1 f45 8 |
| 6 d45 1 | 2 8 3 | 7 e459 e459 |
+---------+------------+--------------+
| 19 2 5 | 3-4 19 8 |a46 36-4 7 |
| 8 6 4 | 357 2 57 | 9 35 1 |
| 7 19 3 | 456 19 456 | 2 8 45 |
+---------+------------+--------------+
| 3 c49 8 | 1 5 67 |b46 679-4 2 |
| 15 15 2 | 67 4 9 | 8 67 3 |
| 49 7 6 | 8 3 2 | 5 1 49 |
+---------+------------+--------------+
+-----------------+-------------------+--------------------+
| 45* 8 9 | 45 7 1 | 3 2 6 |
| 2 3 7 | 9 6 d45 | 1 5-4 8 |
| 6 45* 1 | 2 8 3 | 7 a459# 459* |
+-----------------+-------------------+--------------------+
| 19 2 5 | 34 19 8 | 46 346 7 |
| 8 6 4 | 357 2 57 | 9 35 1 |
| 7 19 3 | 456 19 c456 | 2 8 b45# |
+-----------------+-------------------+--------------------+
| 3 49 8 | 1 5 67 | 46 4679 2 |
| 15 15 2 | 67 4 9 | 8 67 3 |
| 49* 7 6 | 8 3 2 | 5 1 49* |
+-----------------+-------------------+--------------------+