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Aug 04 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 394
Location: Rimini, Italy

PostPosted: Sun Aug 04, 2019 9:39 am    Post subject: Aug 04 VH Reply with quote

Hi everyone,

Code:

+----------+------------+---------------+
| 58  1 7  | 289 3   6  | 245 2459 2459 |
| 6   2 58 | 789 47  49 | 1   579  3    |
| 4   9 3  | 27  1   5  | 6   8    27   |
+----------+------------+---------------+
| 3   6 25 | 4   9   1  | 8   257  257  |
| 259 7 4  | 35  6   8  | 235 1    259  |
| 59  8 1  | 35  2   7  | 345 459  6    |
+----------+------------+---------------+
| 27  5 9  | 1   8   3  | 247 6    24   |
| 1   4 6  | 79  57  29 | 257 3    8    |
| 278 3 28 | 6   457 24 | 9   25   1    |
+----------+------------+---------------+

Play this puzzle online at the Daily Sudoku site

first step
XY-Wing 2,5,8 in r29c3,r9c8 and -5 in r2c8

Code:

+--------+-----------+---------------+
| 8  1 7 | 29 3   6  | 245 2459 2459 |
| 6  2 5 | 8  47  49 | 1   79   3    |
| 4  9 3 | 27 1   5  | 6   8    27   |
+--------+-----------+---------------+
| 3  6 2 | 4  9   1  | 8   57   57   |
| 59 7 4 | 35 6   8  | 23  1    29   |
| 59 8 1 | 35 2   7  | 34  49   6    |
+--------+-----------+---------------+
| 27 5 9 | 1  8   3  | 247 6    24   |
| 1  4 6 | 79 57  29 | 257 3    8    |
| 27 3 8 | 6  457 24 | 9   25   1    |
+--------+-----------+---------------+

Play this puzzle online at the Daily Sudoku site

second step
XY-Wing 2,7,9 in r2c8,r35c9 and -9 in r1c9,r6c8

Ciao Gianni
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