| View previous topic :: View next topic |
| Author |
Message |
daj95376
Joined: 23 Aug 2008
Posts: 3854
|
 Posted: Sun Apr 25, 2010 1:26 pm Post subject: Puzzle 10/04/25 |
 |
|
| Code: | +-----------------------+
| 5 . 2 | . . 7 | 3 6 . |
| . 9 . | 5 . . | . . . |
| 6 . . | . . . | . 2 . |
|-------+-------+-------|
| . 6 . | . . . | 2 9 . |
| . . . | . 4 . | . 7 6 |
| 7 . . | . . 9 | . 4 . |
|-------+-------+-------|
| 9 . . | 3 . . | 7 1 . |
| 1 . 7 | 9 5 4 | 6 . . |
| . . . | . 7 . | . . 4 |
+-----------------------+
|
Play this puzzle online at the Daily Sudoku site |
|
| Back to top |
|
 |
peterj
Joined: 26 Mar 2010
Posts: 974
Location: London, UK
|
| Posted: Sun Apr 25, 2010 6:30 pm Post subject: |
|
|
Doing this UR first saves a step..
| Quote: | Type 2 UR(26) r27c56; r7c9<>8, r9c46<>8
xy-wing(348); r9c1<>3 |
Having had a nice UR, I tried to make use of the UR(19) but although I could eliminate 1 from r3c59 due to strong links of 9 it didn't help; I couldn't find a way of using the strong link created between (3)r3c5=(5)r3c9; also looked at the potential hidden UR(14) r23c27 but only one strong link on 1s.
Was I missing anything or were they just not useful? |
|
| Back to top |
|
|
tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
|
| Posted: Mon Apr 26, 2010 1:34 pm Post subject: |
|
|
Peterj,
I solved this puzzle using the exact steps you used, and I also tried to use the strong inference, (3)r3c5=(5)r3c9, provided by the UR19 without success.
Ted |
|
| 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
