| View previous topic :: View next topic | 
	
	
		| Author | Message | 
	
		| Clement 
 
 
 Joined: 24 Apr 2006
 Posts: 1113
 Location: Dar es Salaam Tanzania
 
 | 
			
				|  Posted: Mon May 01, 2017 11:44 pm    Post subject: May 2 VH |   |  
				| 
 |  
				| Basics only |  | 
	
		| Back to top |  | 
	
		|  | 
	
		| hughwill 
 
 
 Joined: 05 Apr 2010
 Posts: 424
 Location: Birmingham UK
 
 | 
			
				|  Posted: Tue May 02, 2017 2:23 pm    Post subject: May 2 NVH |   |  
				| 
 |  
				|  	  | Code: |  	  | +--------------+------------+-------------+
 | 1367 2   9   | 67 357 8   | 57 4   137  |
 | 5    67  4   | 1  37  369 | 2  79  8    |
 | 137  18  178 | 2  4   359 | 6  15  1379 |
 +--------------+------------+-------------+
 | 167  3   2   | 4  8   56  | 9  156 17   |
 | 4    18  178 | 9  357 356 | 57 156 2    |
 | 679  679 5   | 67 2   1   | 8  3   4    |
 +--------------+------------+-------------+
 | 8    4   3   | 5  9   7   | 1  2   6    |
 | 2    79  6   | 8  1   4   | 3  79  5    |
 | 179  5   17  | 3  6   2   | 4  8   79   |
 +--------------+------------+-------------+
 
 | 
 Play this puzzle online at the Daily Sudoku site
 
 I think that the software is using the X wing on 3 c19 to solve it
 (making it the most easy of VHs), while the box-line interaction
 (b2r2) is a 'basic' way to remove the crucial 3 in r1c5.
 |  | 
	
		| Back to top |  | 
	
		|  | 
	
		| Ajò Dimonios 
 
 
 Joined: 01 May 2017
 Posts: 339
 Location: Sassari Italy
 
 | 
			
				|  Posted: Tue May 02, 2017 4:05 pm    Post subject: |   |  
				| 
 |  
				| Hi everyone, 
 I think that to quickly reach the solution with one step it is necessary to use the technique the fin-x-wing on 7 c57, with the elimination of 7 on R1C4, fin 7 on R2C5.
 
 
 
 
 Ciao Paolo
 |  | 
	
		| Back to top |  | 
	
		|  | 
	
		| Earl 
 
 
 Joined: 30 May 2007
 Posts: 677
 Location: Victoria, KS
 
 | 
			
				|  Posted: Wed May 03, 2017 3:08 am    Post subject: May 2 VH |   |  
				| 
 |  
				| I agree with Clement - it is basics only. 
 Early Earl
 |  | 
	
		| Back to top |  | 
	
		|  | 
	
		| Ajò Dimonios 
 
 
 Joined: 01 May 2017
 Posts: 339
 Location: Sassari Italy
 
 | 
			
				|  Posted: Wed May 03, 2017 9:09 am    Post subject: Re: May 2 VH |   |  
				| 
 |  
				| Hi everyone, 
 If we mean "basic strategies" in addition to naked singles, hidden singles and locked candidates even naked subset, I also agree,because it is possible to delete 7 in R1C4 with naked pairs (cells E1, G1).
 
 Ciao Paolo
 |  | 
	
		| Back to top |  | 
	
		|  | 
	
		| immpy 
 
 
 Joined: 06 May 2017
 Posts: 574
 
 
 | 
			
				|  Posted: Mon May 08, 2017 12:56 pm    Post subject: |   |  
				| 
 |  
				| Hello all. 
 I tend to agree with the "basics" theory. After solving it I felt that maybe this one should have been rated Hard.
 
 Still a good puzzle.
 
 
 immpy
 |  | 
	
		| Back to top |  | 
	
		|  | 
	
		|  |