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Diabolical 08132022

 
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Clement



Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
PostPosted: Fri Aug 26, 2022 5:02 pm    Post subject: Diabolical 08132022 Reply with quote
Code:

+-------+-------+-------+
| . . 7 | . . . | 8 . . |
| 2 . . | . . 3 | . . 6 |
| . . . | . . 5 | . 9 7 |
+-------+-------+-------+
| 9 7 . | 3 . . | . 4 . |
| . . . | 2 . 7 | . . . |
| . 4 . | . . 6 | . . 1 |
+-------+-------+-------+
| 8 2 . | 1 . . | . . . |
| 3 . . | 6 . . | . . 2 |
| . . 9 | . . . | 1 . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site
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TomC



Joined: 30 Oct 2020
Posts: 359
Location: Wales
PostPosted: Sat Aug 27, 2022 10:40 am    Post subject: Reply with quote
Nice one Clement!

-2 in r3c5 to solve
Code:

+---------------+----------------+---------------------+
| 146 1359 7    | 49  e1269  29  |  8      1235  c35   |
| 2   1589 158  | 7    189   3   |  4     d15     6    |
| 146 138  1368 | 48  a1268  5   | b23     9      7    |
+---------------+----------------+---------------------+
| 9   7    26   | 3    5     1   |  26     4      8    |
| 16  138  1368 | 2    4     7   |  3569   356    359  |
| 5   4    23   | 89   89    6   |  237    237    1    |
+---------------+----------------+---------------------+
| 8   2    45   | 1    379   49  |  35679  3567   3459 |
| 3   15   145  | 6    79    489 |  579    578    2    |
| 7   6    9    | 5    23    248 |  1      38     34   |
+---------------+----------------+---------------------+

Play this puzzle online at the Daily Sudoku site

If a=2, b=3, c=5, d=1, e=1 leads to no <6> in box 2
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dongrave



Joined: 06 Mar 2014
Posts: 572
PostPosted: Sun Aug 28, 2022 2:09 pm    Post subject: Reply with quote
My solution was similar to Tom's.
Code:
+---------------+-----------------+---------------------+
| 146 1359 7    | b49   1269 a29* |  8      1235  f35   |
| 2   1589 158  |  7   d189   3   |  4     e15     6    |
| 146 138  1368 | c48   1268  5   | g23     9      7    |
+---------------+-----------------+---------------------+
| 9   7    26   |  3    5     1   |  26     4      8    |
| 16  138  1368 |  2    4     7   |  3569   356    359  |
| 5   4    23   |  89   89    6   |  237    237    1    |
+---------------+-----------------+---------------------+
| 8   2    45   |  1    379   49  |  35679  3567   3459 |
| 3   15   145  |  6    79    489 |  579    578    2    |
| 7   6    9    |  5    23    248 |  1      38     34   |
+---------------+-----------------+---------------------+

(2=9*)r1c6 - (9=4)r1c4 - (4=8)r3c4 - (89*=1)r2c5 - (1=5)r2c8 - (5=3)r1c9 - (3=2)r3c7 => r1c8 <> 2; stte.
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TomC



Joined: 30 Oct 2020
Posts: 359
Location: Wales
PostPosted: Sun Aug 28, 2022 7:49 pm    Post subject: Reply with quote
Very good dongrave, and of course your chain shows that r3c5 <> 2 as well!
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