| View previous topic :: View next topic |
| Author |
Message |
daj95376
Joined: 23 Aug 2008
Posts: 3854
|
 Posted: Wed Apr 15, 2009 8:02 pm Post subject: Set T_03 Puzzle 73 -- Advanced |
 |
|
| Code: | +-----------------------+
| . . . | 1 3 . | . . 2 |
| . . . | . . 9 | 1 . . |
| . . 5 | 2 . . | 3 . 4 |
|-------+-------+-------|
| 7 . 9 | . . 3 | 4 . . |
| 3 . . | . 9 . | 6 . . |
| . 5 . | 4 . 8 | . . 7 |
|-------+-------+-------|
| . 4 3 | 7 6 . | . . . |
| . . . | . . . | . . . |
| 5 . 1 | . . 4 | . . . |
+-----------------------+
|
Play this puzzle online at the Daily Sudoku site
| Code: | c8b6 Locked Candidate 1 <> 2 [r79c8]
c2b4 Locked Candidate 1 <> 8 [r138c2]
c8b3 Locked Candidate 1 <> 9 [r79c8]
c37 X-Wing <> 8 [r1c8],[r8c19]
XYZ-Wing [r2c8]/[r2c9]+[r9c8] <> 6 [r1c8]
b3 Naked Triple <> 789 [r2c8]
r8 Naked Triple <> 369 [r8c23]
XY-Wing [r1c8]/[r1c2]+[r9c8] <> 6 [r9c2] -or-
c9b9 UR Type 2 [r89c49] <> 6 [r2c9],[r9c8]
|
Last edited by daj95376 on Wed Apr 22, 2009 10:40 am; edited 2 times in total |
|
| Back to top |
|
 |
storm_norm
Joined: 18 Oct 2007
Posts: 1741
|
| Posted: Thu Apr 16, 2009 5:31 am Post subject: |
|
|
| Code: | .---------------------.---------------------.---------------------.
| 4 679 678 | 1 3 5 | 78 6789 2 |
| 26 3 267 | 8 4 9 | 1 567 56 |
| 189 19 5 | 2 7 6 | 3 89 4 |
:---------------------+---------------------+---------------------:
| 7 128 9 | 6 12 3 | 4 1258 158 |
| 3 128 4 | 5 9 7 | 6 128 18 |
| 126 5 26 | 4 12 8 | 9 3 7 |
:---------------------+---------------------+---------------------:
| 289 4 3 | 7 6 12 | 5 18 189 |
| 2689 2679 2678 | 39 5 12 | 278 4 13689 |
| 5 2679 1 | 39 8 4 | 27 67 369 |
'---------------------'---------------------'---------------------' |
xyz-wing {5,6,7} removes 6 from r1c8
UR {3,9} r89c49: the UR is confined to the x-wing cells of candidate 3 except for the lonely 9 in r7c9... since r7c9 can't be anything other than 9, removing 1,8 from that cell finishes the puzzle. |
|
| Back to top |
|
|
gindaani
Joined: 06 Mar 2009
Posts: 79
|
| Posted: Thu Apr 16, 2009 3:41 pm Post subject: |
|
|
I found these 3 steps:
8 x-wing
567 xyz-wing
679 xy-wing |
|
| Back to top |
|
|
tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
|
| Posted: Fri Apr 17, 2009 2:14 pm Post subject: |
|
|
I treated the UR39 as a Type 4, thereby deleting the <9> from r89c9, which forced r7c9=9.
Next, I used a x-wing8 (which seems to have been unnecessary), and finished with xyz567.
Ted |
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Mon Apr 20, 2009 3:31 pm Post subject: |
|
|
| Same as Norm, but in reverse order. First the Type 4 UR on 39 followed by the XYZ-Wing. |
|
| 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
