| View previous topic :: View next topic |
| Author |
Message |
arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
|
 Posted: Wed Sep 06, 2017 5:52 am Post subject: VH090617 |
 |
|
| Code: | *-----------*
|...|27.|.1.|
|2.8|9..|..3|
|...|...|..9|
|---+---+---|
|1.4|35.|..7|
|..3|...|5..|
|5..|.19|3.2|
|---+---+---|
|9..|...|...|
|8..|..1|4.5|
|.4.|.38|...|
*-----------*
|
Play/Print this puzzle online |
|
| Back to top |
|
 |
ZeroAssoluto
Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy
|
| Posted: Wed Sep 06, 2017 7:08 am Post subject: |
|
|
Hi everyone,
| Code: |
+-----------+-------------+-----------+
| 3 56 9 | 2 7 56 | 8 1 4 |
| 2 1 8 | 9 46 456 | 67 567 3 |
| 4 7 56 | 1 8 3 | 26 256 9 |
+-----------+-------------+-----------+
| 1 29 4 | 3 5 26 | 69 8 7 |
| 6 29 3 | 8 24 7 | 5 49 1 |
| 5 8 7 | 46 1 9 | 3 46 2 |
+-----------+-------------+-----------+
| 9 356 156 | 467 246 246 | 17 37 8 |
| 8 36 26 | 67 9 1 | 4 237 5 |
| 7 4 12 | 5 3 8 | 129 29 6 |
+-----------+-------------+-----------+
|
Play this puzzle online at the Daily Sudoku site
| Quote: | | XY-Wing 2,4,6 in r25c5,r4c6 and -5 in r12c6 |
Ciao Gianni |
|
| Back to top |
|
|
Ajò Dimonios
Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
|
| Posted: Wed Sep 06, 2017 8:55 am Post subject: |
|
|
Hi Gianni
Gianni Wrote:
| Quote: | | -Wing 2,4,6 in r25c5,r4c6 and -5 in r12c6 |
I do not understand. It is impossible that both 5 of column 6 are false.
Most likely you've traded the 5 with 6
My solution
[(6-2)R7C5=(2)R5C5-(2)R4C6 and (6)R7C5-(6=4)R2C5-(4)R2C6=NP(56)R12C6-(6)R4C6 or (6)R7C5-(6)R78C4=(6)R6C4-(6)R4C6]=>contradiction R4C6=Ø=>-6R7C5=>stte.
or
[(5)R1C2-(5=6)R1C6-(6=2)R4C6-(2)R5C5 and (5)R1C2-(5)R1C6=(5-4)R2C6=(4)R2C5-(4)R5C5]=>contradiction R5C5=Ø=>-5R1C2=>stte.
or
AIC (4=6)R2C6-(6=2)R4C6-(2=4)R5C5-(4)R2C5=>-4R2C5=>stte
Ciao a Tutti
Paolo |
|
| Back to top |
|
|
ZeroAssoluto
Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy
|
| Posted: Wed Sep 06, 2017 12:46 pm Post subject: |
|
|
Hi Paolo,
Of course, I pressed 5 instead of 6;
in fact, the rules of XY-Wing provide for the elimination of the number common to the two wings cells.
Ciao Gianni |
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Thu Sep 07, 2017 1:34 am Post subject: |
|
|
| Here's another vote for the 24-6 XY-Wing. I originally decided not to use it, but alternative solutions were hard to find. |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
