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Jan 18 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 890
Location: Rimini, Italy

PostPosted: Thu Jan 18, 2024 10:22 am    Post subject: Jan 18 VH Reply with quote

Hi everyone,

Code:

+----------+---------+-------------+
| 6  13  8 | 4 35 2  | 19 1579 57  |
| 13 4   9 | 6 35 7  | 8  15   2   |
| 7  5   2 | 8 1  9  | 3  4    6   |
+----------+---------+-------------+
| 2  78  3 | 9 6  1  | 4  57   578 |
| 4  9   1 | 2 78 5  | 6  3    78  |
| 5  78  6 | 3 78 4  | 12 12   9   |
+----------+---------+-------------+
| 19 12  7 | 5 4  8  | 29 6    3   |
| 39 236 5 | 1 29 36 | 7  8    4   |
| 8  36  4 | 7 29 36 | 5  29   1   |
+----------+---------+-------------+

Play this puzzle online at the Daily Sudoku site

Quote:

XY-Wing 1,2,9 in r17c7,r7c2 and -1 in r1c2
or
W-Wing 1,9 in r1c7,r7c1 SL with number 1 in r2c18 and -9 in r7c7
or
UR 3,6 in r89c26 and -3 -6 in r8c2


Ciao Gianni
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TomC



Joined: 30 Oct 2020
Posts: 356
Location: Wales

PostPosted: Fri Jan 19, 2024 4:41 pm    Post subject: Reply with quote

There is a pattern of <78> in rows 4, 5 and 6 which means that r4c9 can't be <78> so must be <5>

Has this pattern got a name?
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