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Aug 01 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy
PostPosted: Mon Aug 01, 2022 9:00 am    Post subject: Aug 01 VH Reply with quote
Hi everyone,

Code:

+----------------+-------------+------------+
| 2    78   789  | 4  136 1368 | 5  137 139 |
| 4789 5    4789 | 18 2   138  | 6  137 139 |
| 6    3    1    | 7  5   9    | 2  4   8   |
+----------------+-------------+------------+
| 179  4    79   | 6  8   137  | 37 2   5   |
| 178  1678 5    | 2  137 137  | 9  368 4   |
| 3    2    678  | 5  9   4    | 78 168 16  |
+----------------+-------------+------------+
| 48   9    468  | 3  67  678  | 1  5   2   |
| 178  1678 2    | 18 4   5    | 38 9   36  |
| 5    168  3    | 9  16  2    | 4  68  7   |
+----------------+-------------+------------+

Play this puzzle online at the Daily Sudoku site

Quote:
XY-Wing 1,6,8 in r8c4,r9c58 and -8 in r8c7
XYZ-Wing 1,6,8 in r6c89,r9c8 and -6 in r5c8
Skyscraper with number 6 in r5c8,r8c9 SL in r58c2 and -6 in r6c9,r9c8
Skyscraper with number 6 in r7c3,r8c9 SL in r6c39 and -6 in r8c2
2 String Kite with number 6 in r6c3,r8c9 SL in r7c3,r8c2 and -6 in r6c9
2 String Kite with number 6 in r5c2,r8c9 SL in r5c8,r6c9 and -6 in r8c2


Ciao Gianni
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TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales
PostPosted: Mon Aug 01, 2022 9:48 am    Post subject: another way... Reply with quote
r9c8 = 8 to solve
Code:

+--------------------+---------------+--------------+
|  2     78     789  | 4   136  1368 | 5   137  139 |
|  4789  5      4789 | 18  2    138  | 6   137  139 |
|  6     3      1    | 7   5    9    | 2   4    8   |
+--------------------+---------------+--------------+
|  179   4      79   | 6   8    137  | 37  2    5   |
|  178   1678   5    | 2   137  137  | 9   368  4   |
|  3     2      678  | 5   9    4    | 78  168  16  |
+--------------------+---------------+--------------+
| a48    9     b468  | 3   67   678  | 1   5    2   |
|  178  c1678   2    | 18  4    5    | 38  9   e36  |
|  5    d168    3    | 9   16   2    | 4  x68   7   |
+--------------------+---------------+--------------+

If <ab> is a <48> pair then d <> 8, x=8
If <ab> is not a <48> pair then b=6, c <> 6, e=6, x=8

Either way x=8
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