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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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 Posted: Thu May 26, 2016 11:21 am Post subject: May 26 VH |
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After basics | Code: |
+------------+--------+------------+
| 8 7 5 | 3 1 9 | 24 6 24 |
| 46 16 469 | 2 7 8 | 159 3 59 |
| 39 13 2 | 4 6 5 | 19 8 7 |
+------------+--------+------------+
| 1 368 368 | 9 4 2 | 56 7 35 |
| 39 2 7 | 8 5 6 | 49 1 349 |
| 5 4 69 | 1 3 7 | 269 29 8 |
+------------+--------+------------+
| 7 9 146 | 5 8 14 | 3 24 246 |
| 2 38 348 | 6 9 34 | 7 5 1 |
| 46 5 13 | 7 2 13 | 8 49 469 |
+------------+--------+------------+
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Play this puzzle online at the Daily Sudoku site
Only one -step | Quote: | | 49-2 XY-wing pivot r5c7 r6c7<>2 stte |
but quite pleasing. |
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Jeff
Joined: 06 May 2007
Posts: 46
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| Posted: Sun May 29, 2016 2:10 am Post subject: |
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In your solution it appears that you meant to type r6c8 rather than r6c7 as it appears in the solution.
I could not find out what stte stands for. I looked in the terminology list but could not find it. It looks like when the number in r5c7 is a 9, then r6c8 becomes a 2 and r7c8 becomes a 4, r9c8 becomes a 9, r9c9 becomes a 6, r7c9 becomes a 2, which then eliminates the 2 from r1c9. Is this what stte stands for? This is a real round about solution which I don't recall seeing before - very neat! Thanks, |
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dongrave
Joined: 06 Mar 2014
Posts: 568
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| Posted: Sun May 29, 2016 2:18 pm Post subject: |
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| Hi Jeff, It looks like Hugh typed it right to me. The 49-2 XY-Wing that he listed has the pivot at r5c7 and the 2 pincers at r1c7 and r6c8 so the 2 is eliminated from r6c7. 'stte' stands for 'singles to the end' which means that the rest of the puzzle can be solved using just basics. (Sometimes you'll see 'ste' instead of 'stte'.) Don. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun May 29, 2016 4:48 pm Post subject: |
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| Quote: | | 'stte' stands for 'singles to the end' which means that the rest of the puzzle can be solved using just basics. (Sometimes you'll see 'ste' instead of 'stte'.) Don. |
I'm hardly an expert on this, as I don't use it and pay as little attention to it as I can. Some guys use LCSTTE, meaning Locked candidates and singles to the end. I think some view a solution requiring only stte as better than one requiring lcstte. I can't understand how the stte or lcstte is meaningful or what the reader can do with it, other than use it himself because others do it.   |
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Jeff
Joined: 06 May 2007
Posts: 46
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| Posted: Mon May 30, 2016 1:38 am Post subject: |
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| OK. I now see how it all fits. Thanks |
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