- Code: Select all
*-----------*
|.29|.3.|...|
|4..|2..|.5.|
|.83|7..|..9|
|---+---+---|
|...|..8|9.6|
|96.|...|.81|
|8.7|1..|...|
|---+---+---|
|2..|..7|69.|
|.5.|..3|..7|
|...|.5.|32.|
*-----------*
Play/Print this puzzle online
*-----------*
|.29|.3.|...|
|4..|2..|.5.|
|.83|7..|..9|
|---+---+---|
|...|..8|9.6|
|96.|...|.81|
|8.7|1..|...|
|---+---+---|
|2..|..7|69.|
|.5.|..3|..7|
|...|.5.|32.|
*-----------*
*-----------------------------------------------------------*
| 15 2 9 |f468 3 1456 | 1478 1467 e48 |
| 4 7 6 | 2 19-8 19 | 18 5 3 |
| 15 8 3 | 7 a16 1456 | 2 146 9 |
*-------------------+-------------------+-------------------|
| 3 1 2 | 5 47 8 | 9 47 6 |
| 9 6 5 | 3 47 2 | 47 8 1 |
| 8 4 7 | 1 a69 b69 | 5 3 2 |
*-------------------+-------------------+-------------------|
| 2 3 148 | 48 a18 7 | 6 9 5 |
| 6 5 48 | 9 2 3 | 148 14 7 |
| 7 9 148 | 468 5 c146 | 3 2 d48 |
*-----------------------------------------------------------*
*15 2 9 | 468 3 *456-1 | 1478 1467 48
4 7 6 | 2 d189 a9-1 | 18 5 3
*15 8 3 | 7 16 *456-1 | 2 146 9
------------------------+----------------------+---------------------
3 1 2 | 5 47 8 | 9 47 6
9 6 5 | 3 47 2 | 47 8 1
8 4 7 | 1 69 69 | 5 3 2
------------------------+----------------------+---------------------
2 3 148 | 48 c18 7 | 6 9 5
6 5 48 | 9 2 3 | 148 14 7
7 9 148 | 468 5 b146 | 3 2 48
*-------------------+-------------------+-------------------*
|*15 2 9 | 468 3 *1456 | 1478 1467 48 |
| 4 7 6 | 2 19-8 19 |(1)8 5 3 |
|*15 8 3 | 7 16 *1456 | 2 146 9 |
*-------------------+-------------------+-------------------|
| 3 1 2 | 5 47 8 | 9 47 6 |
| 9 6 5 | 3 47 2 | 47 8 1 |
| 8 4 7 | 1 69 69 | 5 3 2 |
*-------------------+-------------------+-------------------|
| 2 3 148 | 48 (1)8 7 | 6 9 5 |
| 6 5 48 | 9 2 3 | 148 14 7 |
| 7 9 148 | 468 5 146 | 3 2 48 |
*-------------------+-------------------+-------------------*
*---------------------------------------------------------------------------------*
| 15 2 9 |D468 3 1456 | 1478 1467dB 48 |
| 4 7 6 | 2 E189 g19j |Fh8-1kC 5 3 |
| 15 8 3 | 7 16f 1456 | 2 146eB 9 |
|--------------------------+--------------------------+---------------------------|
| 3 1 2 | 5 47 8 | 9 47c 6 |
| 9 6 5 | 3 47 2 | 47b 8 1 |
| 8 4 7 | 1 69g f69h | 5 3 2 |
|--------------------------+--------------------------+---------------------------|
| 2 3 b148 |c48 18 7 | 6 9 5 |
| 6 5 a48 | 9 2 3 | 148a 14A 7 |
| 7 9 148 |d468 5 e146 | 3 2 48 |
*---------------------------------------------------------------------------------*
Kraken Row 8 Digit 4:
4 r8c3 - r7c3 = (4-8) r7c4 = (8-6) r9c4 = r9c6 - (6=9) r6c6 - (9=1) r2c6 - 1 r2c7;
|
\ r1c4 - r2c5 = r2c7 - 1 r2c7;
4 r8c7 - r5c7 = (4-7) r4c8 = (7-6) r1c8 = r3c8 - r3c5 = r6c5 - (6=9) r6c6 - (9=1) r2c6 - 1 r2c7;
4 r8c8 - 1 r8c8 = r13c8 - 1 r2c7; => - 1 r2c7; stte
7b53 wrote : Doesn't (1)r7c5 .... create a DP(15)r13c16
pjb wrote : I don't think you need to involve r2c7=1, and additionally I don't see how this leads to the DP since r3c5 can still =1.
1 r2c7 - 1 r2c56;
1 r2c7 - 8 r2c7 = r2c5 - (8=1) r7c5 - 1 r3c5 ; => DP (15) r13c16 => - 1 r2c7
+----------+--------------+--------------+
| 15 2 9 | 468 3 1456 | 1478 1467 4-8 |
| 4 7 6 | 2 189 19 | 18 5 3 |
| 15 8 3 | 7 6-1 1456 | 2 146 9 |
+----------+--------------+--------------+
| 3 1 2 | 5 47 8 | 9 47 6 |
| 9 6 5 | 3 47 2 | 47 8 1 |
| 8 4 7 | 1 69 69 | 5 3 2 |
+----------+--------------+--------------+
| 2 3 148 | 48 18 7 | 6 9 5 |
| 6 5 48 | 9 2 3 | 148 14 7 |
| 7 9 148 | 468 5 146 | 3 2 48 |
+----------+--------------+--------------+
pjb wrote:Good work 7b53. I agree that if r7c5=1, then one or other of r13c6=1, leading to the DP. Therefore r7c5 must = 8. I don't think you need to involve r2c7=1, and additionally I don't see how this leads to the DP since r4c5 can still =1.
Phil
Leren wrote:CODE: SELECT ALL
1 r2c7 - 1 r2c56;
1 r2c7 - 8 r2c7 = r2c5 - (8=1) r7c5 - 1 r3c5 ; => DP (15) r13c16 => - 1 r2c7