- Code: Select all
*-----------*
|.6.|...|.19|
|.29|.7.|...|
|.1.|5.9|..4|
|---+---+---|
|...|91.|3..|
|9..|834|..7|
|..3|.62|...|
|---+---+---|
|6..|4.7|.9.|
|...|.8.|47.|
|78.|...|.3.|
*-----------*
Play/Print this puzzle online
*-----------*
|.6.|...|.19|
|.29|.7.|...|
|.1.|5.9|..4|
|---+---+---|
|...|91.|3..|
|9..|834|..7|
|..3|.62|...|
|---+---+---|
|6..|4.7|.9.|
|...|.8.|47.|
|78.|...|.3.|
*-----------*
*--------------------------------------------------------------*
| 5 6 7 | 3 4 8 | 2 1 9 |
| 4 2 9 | 16 7 16 | 58 58 3 |
| 3 1 8 | 5 2 9 | 7 6 4 |
|--------------------+--------------------+--------------------|
| 28 7 26 | 9 1 5 | 3 4 e6-8cE |
| 9 5 16 | 8 3 4 | 16 2 7 |
|c18C 4 3 | 7 6 2 | 9 d58D d158BD |
|--------------------+--------------------+--------------------|
| 6 3 a12 | 4 5 7 | 18a 9 128bA |
|b12 9 5 | 126 8 3 | 4 7 126 |
| 7 8 4 | 126 9 16 | 156 3 1256 |
*--------------------------------------------------------------*
1 r7c3 - r8c1 = (1-8) r6c1 = r6c89 - 8 r4c9;
1 r7c7 - 8 r7c7 = r7c9 - 8 r4c9;
1 r7c9 - r6c9 = (1-8) r6c1 = r6c89 - 8 r4c9; => - 8 r4c9; stte
*--------------------------------------------------------------*
| 5 6 7 | 3 4 8 | 2 1 9 |
| 4 2 9 | 16 7 16 |b58 58 3 |
| 3 1 8 | 5 2 9 | 7 6 4 |
|--------------------+--------------------+--------------------|
| 28 7 26 | 9 1 5 | 3 4 68B |
| 9 5 16b | 8 3 4 |c1-6cC 2 7 |
| 18 4 3 | 7 6 2 | 9 58 158 |
|--------------------+--------------------+--------------------|
| 6 3 12b | 4 5 7 |b18 9 a128aA |
| 12 9 5 | 126 8 3 | 4 7 126 |
| 7 8 4 | 126 9 16 |b156 3 1256 |
*--------------------------------------------------------------*
1 r7c9 - (1=6) r279c7 - 6 r5c7;
2 r7c9 - (2=6) r57c3 - 6 r5c7;
8 r7c9 - (8=6) r4c9 - 6 r5c7; => - 6 r5c7; stte
*-----------------------------------------------------------*
| 5 6 7 | 3 4 8 | 2 1 9 |
| 4 2 9 | 16 7 16 | 58 58 3 |
| 3 1 8 | 5 2 9 | 7 6 4 |
*-------------------+-------------------+-------------------|
|*28 7 **26 | 9 1 5 | 3 4 d6-8 |
| 9 5 16 | 8 3 4 |c16 2 7 |
| 18 4 3 | 7 6 2 | 9 58 b158 |
*-------------------+-------------------+-------------------|
| 6 3 **12 | 4 5 7 | 18 9 a*128 |
| 12 9 5 | 126 8 3 | 4 7 126 |
| 7 8 4 | 126 9 16 | 156 3 1256 |
*-----------------------------------------------------------*
Same elimination as Leren. Almost W-wing:
{W-wing, (28)r4c1,r7c9 SL(2)c3} => -8 r4c9
||
(1)r7c9 - r6c9 = (1-6)r5c7 = (6-8)r4c9
*-----------------------------------------------------------*
| 5 6 7 | 3 4 8 | 2 1 9 |
| 4 2 9 | 16 7 16 | 58 58 3 |
| 3 1 8 | 5 2 9 | 7 6 4 |
*-------------------+-------------------+-------------------|
| 28 7 2-6 | 9 1 5 | 3 4 a68 |
| 9 5 c16 | 8 3 4 | 16 2 7 |
| 18 4 3 | 7 6 2 | 9 a58 a158 |
*-------------------+-------------------+-------------------|
| 6 3 c12 | 4 5 7 | 18 9 b128 |
| 12 9 5 | 126 8 3 | 4 7 126 |
| 7 8 4 | 126 9 16 | 156 3 1256 |
*-----------------------------------------------------------*
+---------+----------+-------------+
| 5 6 7 | 3 4 8 | 2 1 9 |
| 4 2 9 | 16 7 16 | 58 58 3 |
| 3 1 8 | 5 2 9 | 7 6 4 |
+---------+----------+-------------+
| 28 7 26 | 9 1 5 | 3 4 68 |
| 9 5 16 | 8 3 4 | 16 2 7 |
| 18 4 3 | 7 6 2 | 9 58 158 |
+---------+----------+-------------+
| 6 3 12 | 4 5 7 | 18 9 128 |
| 12 9 5 | 126 8 3 | 4 7 126 |
| 7 8 4 | 126 9 16 | 156 3 1256 |
+---------+----------+-------------+
5 6 7 | 3 4 8 | 2 1 9
4 2 9 | 16 7 16 | 58 58 3
3 1 8 | 5 2 9 | 7 6 4
---------------------+----------------------+---------------------
28 7 26 | 9 1 5 | 3 4 68
9 5 b16 | 8 3 4 |c16 2 7
18 4 3 | 7 6 2 | 9 58 d158
---------------------+----------------------+---------------------
6 3 a12 | 4 5 7 | 8-1 9 28-1
12 9 5 | 126 8 3 | 4 7 126
7 8 4 | 126 9 16 |f156 3 e1256
Marty R. wrote:
- Code: Select all
+---------+----------+-------------+
| 5 6 7 | 3 4 8 | 2 1 9 |
| 4 2 9 | 16 7 16 | 58 58 3 |
| 3 1 8 | 5 2 9 | 7 6 4 |
+---------+----------+-------------+
| 28 7 26 | 9 1 5 | 3 4 68 |
| 9 5 16 | 8 3 4 | 16 2 7 |
| 18 4 3 | 7 6 2 | 9 58 158 |
+---------+----------+-------------+
| 6 3 12 | 4 5 7 | 18 9 128 |
| 12 9 5 | 126 8 3 | 4 7 126 |
| 7 8 4 | 126 9 16 | 156 3 1256 |
+---------+----------+-------------+
Play this puzzle online at the Daily Sudoku site
(2=6)r4c3-(6=8*)r4c9-(85=1*)r6c89-(81=2)r7c9=>r7c3<>2
(Is my notation correct?)