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		| ZeroAssoluto 
 
 
 Joined: 05 Feb 2017
 Posts: 1019
 Location: Rimini, Italy
 
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				|  Posted: Tue Jul 04, 2017 10:38 pm    Post subject: Jul 05 VH |   |  
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				| Hi everyone, 
 
  	  | Code: |  	  | +------------+-------------+----------+
 | 9  25  4   | 6   235 135 | 7 13 8   |
 | 27 8   57  | 4   235 135 | 6 9  13  |
 | 3  6   1   | 9   7   8   | 4 5  2   |
 +------------+-------------+----------+
 | 6  37  9   | 37  1   2   | 5 8  4   |
 | 8  4   37  | 357 35  9   | 2 16 16  |
 | 5  1   2   | 8   6   4   | 3 7  9   |
 +------------+-------------+----------+
 | 1  9   357 | 2   4   357 | 8 36 367 |
 | 4  357 8   | 35  9   6   | 1 2  37  |
 | 27 237 6   | 1   8   37  | 9 4  5   |
 +------------+-------------+----------+
 
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 Play this puzzle online at the Daily Sudoku site
 
 
  	  | Quote: |  	  | Skyscraper with number 3 in r4c4,r4c2,r9c2,r9c6 and -3 in r8c4. | 
 
 Ciao Gianni
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		| Ajò Dimonios 
 
 
 Joined: 01 May 2017
 Posts: 339
 Location: Sassari Italy
 
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				|  Posted: Tue Jul 04, 2017 10:59 pm    Post subject: |   |  
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				| Another solution Forcing chain [(3-5)R7C3=(5)R7C6-(5)R8C4 and (3)R7C3-(3)R7C89=(3)R8C9-(3)R8C4]=>contradiction R8C4=Ø=>-3R7C3=>Solution stte
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		| Marty R. 
 
 
 Joined: 12 Feb 2006
 Posts: 5770
 Location: Rochester, NY, USA
 
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				|  Posted: Wed Jul 05, 2017 5:29 am    Post subject: |   |  
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				| XYZ-Wing (237), hinged r9c2=> -7r8c2. |  |  
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