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		immpy
 
 
  Joined: 06 May 2017 Posts: 574
 
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				 Posted: Thu May 18, 2017 2:45 pm    Post subject: VH+ 051817 | 
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				Enjoy.
 
 
 	  | Code: | 	 		  
 
+-------+-------+-------+
 
| . . . | 2 4 . | . . . |
 
| . . 4 | 7 . . | . . 8 |
 
| . 6 . | . . . | . . . |
 
+-------+-------+-------+
 
| 3 2 . | . . 4 | . . . |
 
| 7 . . | . 3 . | 6 2 9 |
 
| . . . | 5 . . | 1 . . |
 
+-------+-------+-------+
 
| . . . | . 2 8 | 3 . 5 |
 
| . . . | . 6 . | . 8 . |
 
| . 3 . | . 1 . | 2 . . |
 
+-------+-------+-------+
 
 | 	  
 
Play this puzzle online at the Daily Sudoku site | 
			 
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		Ajò Dimonios
 
 
  Joined: 01 May 2017 Posts: 339 Location: Sassari Italy
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				 Posted: Thu May 18, 2017 3:54 pm    Post subject:  | 
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				 	  | Code: | 	 		  [code]
 
+------------+----------+--------------+
 
| 8    59 37 | 2  4 369 | 57  1367 136 |
 
| 2    1  4  | 7  5 36  | 9   36   8   |
 
| 59   6  37 | 1  8 39  | 457 347  2   |
 
+------------+----------+--------------+
 
| 3    2  1  | 6  9 4   | 8   5    7   |
 
| 7    4  5  | 8  3 1   | 6   2    9   |
 
| 6    8  9  | 5  7 2   | 1   34   34  |
 
+------------+----------+--------------+
 
| 149  7  6  | 49 2 8   | 3   149  5   |
 
| 1459 59 2  | 3  6 579 | 47  8    14  |
 
| 459  3  8  | 49 1 579 | 2   4679 46  |
 
+------------+----------+--------------+
 
[/code]
 
[url=http://www.dailysudoku.com/sudoku/play.shtml?p=8:59:37:2:4:369:57:1367:136:2:1:4:7:5:36:9:36:8:59:6:37:1:8:39:457:347:2:3:2:1:6:9:4:8:5:7:7:4:5:8:3:1:6:2:9:6:8:9:5:7:2:1:34:34:149:7:6:49:2:8:3:149:5:1459:59:2:3:6:579:47:8:14:459:3:8:49:1:579:2:4679:46:]Play this puzzle online[/url] at the Daily Sudoku site | 	  R3C7=4 produces contradiction (two 7 in line 8, cells r8c6 and r8c7) then R3C7<>4.
 
Solution with basics strategies. | 
			 
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		JC Van Hay
 
 
  Joined: 13 Jun 2010 Posts: 494 Location: Charleroi, Belgium
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				 Posted: Thu May 18, 2017 4:55 pm    Post subject:  | 
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				 	  | Code: | 	 		  +----------------+-------------+-----------------+
 
| 8     9(5)  37 | 2   4  369  | (57)  1367  136 |
 
| 2     1     4  | 7   5  36   | 9     36    8   |
 
| 59    6     37 | 1   8  39   | 457   347   2   |
 
+----------------+-------------+-----------------+
 
| 3     2     1  | 6   9  4    | 8     5     7   |
 
| 7     4     5  | 8   3  1    | 6     2     9   |
 
| 6     8     9  | 5   7  2    | 1     34    34  |
 
+----------------+-------------+-----------------+
 
| 14    7     6  | 49  2  8    | 3     149   5   |
 
| 1459  9(5)  2  | 3   6  (57) | 4-7   8     14  |
 
| 45    3     8  | 49  1  57   | 2     4679  46  |
 
+----------------+-------------+-----------------+
 
 | 	  WWing(57)r1c7.r8c6,5C2 - (7=4)r8c7; stte | 
			 
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		Marty R.
 
 
  Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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				 Posted: Thu May 18, 2017 11:59 pm    Post subject:  | 
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				 	  | Code: | 	 		  
 
+------------+----------+--------------+
 
| 8    59 37 | 2  4 369 | 57  1367 136 |
 
| 2    1  4  | 7  5 36  | 9   36   8   |
 
| 59   6  37 | 1  8 39  | 457 347  2   |
 
+------------+----------+--------------+
 
| 3    2  1  | 6  9 4   | 8   5    7   |
 
| 7    4  5  | 8  3 1   | 6   2    9   |
 
| 6    8  9  | 5  7 2   | 1   34   34  |
 
+------------+----------+--------------+
 
| 14   7  6  | 49 2 8   | 3   149  5   |
 
| 1459 59 2  | 3  6 57  | 47  8    14  |
 
| 45   3  8  | 49 1 57  | 2   4679 46  |
 
+------------+----------+--------------+
 
 | 	  
 
Play this puzzle online at the Daily Sudoku site
 
 
XY-Chain  (7=5)r8c6-(5=9)r8c2-(9=5)r1c2-(5=7)r1c7=> -7r8c7 | 
			 
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