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Nov 05 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 868
Location: Rimini, Italy

PostPosted: Sat Nov 05, 2022 10:38 am    Post subject: Nov 05 VH Reply with quote

Hi everyone,

Code:

+-----------+------------+---------+
| 12  6  7  | 28  3   5  | 9  18 4 |
| 19  3  8  | 7   69  4  | 5  16 2 |
| 249 5  24 | 289 269 1  | 7  68 3 |
+-----------+------------+---------+
| 258 4  25 | 239 29  68 | 36 7  1 |
| 7   28 1  | 23  5   68 | 36 4  9 |
| 3   9  6  | 1   4   7  | 8  2  5 |
+-----------+------------+---------+
| 28  28 9  | 4   7   3  | 1  5  6 |
| 45  7  45 | 6   1   9  | 2  3  8 |
| 6   1  3  | 5   8   2  | 4  9  7 |
+-----------+------------+---------+

Play this puzzle online at the Daily Sudoku site

Quote:

first step
X-Wing with number 2 in r34c35 and -2 in r3c14,r4c14
seconde step
XY-Wing 6,8,9 in r2c5,r3c48 and -6 in r2c8,r3c5
or
BUG+1 in r3c5 r3c5=9

or in only one step some AIC, for ex.
r1c4=2 -2 in r1c1,r3c45
r1c4=8 r3c8=8 r3c5=6 r4c5=2 r3c3=2 and -2 in r1c1,r3c45

r1c4=2 -2 in r3c5,r45c4
r1c4=8 r3c8=8 r3c5=6 r4c5=2 and -2 in r3c5,r45c4

r4c5=2 -2 in r4c13,r5c4
r4c5=9 r2c1=9 r1c1=1 r1c4=2 r5c2=2 and -2 in r4c13,r5c4


Ciao Gianni
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