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Oct 19 VH

 
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ZeroAssoluto



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

PostPosted: Mon Oct 19, 2020 8:54 am    Post subject: Oct 19 VH Reply with quote

Hi everyone,

Code:

+-------------+----------+-------------+
| 8  14  9    | 6 14  3  | 2    7   5  |
| 16 3   167  | 5 2   17 | 89   89  4  |
| 2  457 457  | 8 47  9  | 3    1   6  |
+-------------+----------+-------------+
| 7  9   8    | 1 5   6  | 4    2   3  |
| 3  156 156  | 4 9   2  | 1568 568 7  |
| 4  2   156  | 7 3   8  | 1569 569 19 |
+-------------+----------+-------------+
| 16 8   1467 | 9 167 45 | 156  3   2  |
| 5  167 3    | 2 8   17 | 169  4   19 |
| 9  146 2    | 3 16  45 | 7    56  8  |
+-------------+----------+-------------+

Play this puzzle online at the Daily Sudoku site

Quote:
Skyscraper with number 7 in r38c2,r28c6 and -7 in r2c3,r3c5
or
Skyscraper with number 7 in r2c46,r8c26 and -7 in r3c2,r7c3
or
Skyscraper with number 7 in r2c46,r7c35 and -7 in r3c5,r8c6
or
Skyscraper with number 7 in r38c2,r37c5 and -7 in r7c3,r8c6


Ciao Gianni
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dongrave



Joined: 06 Mar 2014
Posts: 563

PostPosted: Mon Oct 19, 2020 10:25 am    Post subject: Reply with quote

Using just VH moves it took me 3 steps. Beginning with Gianni's grid, 1 X-Wing r19c25 (-1r58c2, -1r7c5). Then 17-6 XY-Wing with pivot at r8c6 (-6r9c2). And then 57-6 XY-Wing with pivot at r3c2 (-6r56c3).
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