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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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 Posted: Wed Nov 02, 2016 11:01 am Post subject: Nov 2 VH |
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After Basics: | Code: |
+-----------+--------+-----------+
| 47 2 3 | 1 69 8 | 69 47 5 |
| 457 1 57 | 3 69 2 | 78 478 69 |
| 8 6 9 | 4 7 5 | 3 2 1 |
+-----------+--------+-----------+
| 9 37 6 | 2 5 4 | 1 37 8 |
| 237 4 27 | 6 8 1 | 79 5 39 |
| 1 5 8 | 9 3 7 | 2 6 4 |
+-----------+--------+-----------+
| 27 37 1 | 5 4 9 | 68 38 26 |
| 235 8 25 | 7 1 6 | 4 9 23 |
| 6 9 4 | 8 2 3 | 5 1 7 |
+-----------+--------+-----------+
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Play this puzzle online at the Daily Sudoku site
It's back! I'll put a copy below in case it's not available in your time zone...
I couldn't do better than 2 moves | Quote: | X wing on 3 c28
followed by XY-Wing 25-7 pivot r8c3 :: r2c3=7 stte |
(Select quote area to view...)
Today's orginal puzzle:
| Code: |
+-------+-------+-------+
| . 2 3 | . . 8 | . . 5 |
| . 1 . | 3 . 2 | . . . |
| . . . | 4 7 . | . . . |
+-------+-------+-------+
| 9 . 6 | . 5 . | 1 . 8 |
| . . . | . . . | . . . |
| 1 . 8 | . 3 . | 2 . 4 |
+-------+-------+-------+
| . . . | . 4 9 | . . . |
| . . . | 7 . 6 | . 9 . |
| 6 . . | 8 . . | 5 1 . |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site |
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JC Van Hay
Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
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| Posted: Wed Nov 02, 2016 11:59 am Post subject: |
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| Code: | +----------------+----------+------------------+
| 47 2 3 | 1 69 8 | 679 47 5 |
| 457 1 57 | 3 69 2 | 6789 478 69 |
| 8 6 9 | 4 7 5 | 3 2 1 |
+----------------+----------+------------------+
| 9 37 6 | 2 5 4 | 1 37 8 |
| 7-2(3) 4 27 | 6 8 1 | 79 5 9(3) |
| 1 5 8 | 9 3 7 | 2 6 4 |
+----------------+----------+------------------+
| 7-3(2) 37 1 | 5 4 9 | 68 38 36(2) |
| 235 8 25 | 7 1 6 | 4 9 (23) |
| 6 9 4 | 8 2 3 | 5 1 7 |
+----------------+----------+------------------+
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S-Wing : the solutions of {2R7, (23)r8c9, 3R5} -> 2r7c1==3r5c1 -> -{2r5c1, 3r7c1}; stte |
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the_lock_man
Joined: 18 Dec 2012
Posts: 40
Location: Portsmarfff, UK
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| Posted: Wed Nov 02, 2016 12:17 pm Post subject: |
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Also a 2-stepper, the X wing on 3s also reveals a W-Wing on 27 (boxes 4 & 7), R8C3 <>2, then stte.
S-Wing? What's one of them, then? |
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George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
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| Posted: Wed Nov 02, 2016 12:35 pm Post subject: XY chain? |
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a 1 stepper but involving 4 not 3 pairs 2379 if r8c9 is not 2 it is 3 & that leads via row 5 to r5c3 = 2 so r8c3 >< 2
Last edited by George Woods on Thu Nov 03, 2016 5:11 pm; edited 1 time in total |
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Earl
Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
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| Posted: Wed Nov 02, 2016 1:02 pm Post subject: Nov 2 VH |
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257 xy-wing - R2C3 = 7
Early Earl
Last edited by Earl on Wed Nov 02, 2016 1:57 pm; edited 2 times in total |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Wed Nov 02, 2016 1:43 pm Post subject: |
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Not for the first time I made an error- the diagram given in my post
was after the X wing on 3. The after basics diagram should have been: | Code: |
+-----------+--------+------------+
| 47 2 3 | 1 69 8 | 69 47 5 |
| 457 1 57 | 3 69 2 | 78 478 69 |
| 8 6 9 | 4 7 5 | 3 2 1 |
+-----------+--------+------------+
| 9 37 6 | 2 5 4 | 1 37 8 |
| 237 4 27 | 6 8 1 | 79 5 39 |
| 1 5 8 | 9 3 7 | 2 6 4 |
+-----------+--------+------------+
| 237 37 1 | 5 4 9 | 68 38 236 |
| 235 8 25 | 7 1 6 | 4 9 23 |
| 6 9 4 | 8 2 3 | 5 1 7 |
+-----------+--------+------------+
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Play this puzzle online at the Daily Sudoku site |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Wed Nov 02, 2016 8:56 pm Post subject: |
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| Quote: | | S-Wing? What's one of them, then? |
If you get an answer you might be sorry you asked. |
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