| View previous topic :: View next topic |
| Author |
Message |
daj95376
Joined: 23 Aug 2008
Posts: 3854
|
 Posted: Sun Mar 28, 2010 7:32 pm Post subject: Puzzle 10/03/28 (C) |
 |
|
| Code: | +-----------------------+
| 8 . 2 | . . . | . 4 3 |
| . 6 . | . . . | . . . |
| 9 . . | 3 . 2 | 7 . . |
|-------+-------+-------|
| . . 1 | . . 9 | 4 2 6 |
| . . . | . 3 . | . . . |
| . . 6 | 1 . . | 3 . . |
|-------+-------+-------|
| . . 4 | 9 . 3 | 5 . . |
| 5 . . | 2 . . | . 9 . |
| 6 . . | 8 . . | . . 1 |
+-----------------------+
|
Play this puzzle online at the Daily Sudoku site |
|
| Back to top |
|
 |
storm_norm
Joined: 18 Oct 2007
Posts: 1741
|
| Posted: Mon Mar 29, 2010 6:02 am Post subject: |
|
|
| Code: | +------------------------+--------------------+----------------+
| 8 17 2 | 567 15679 1567 | 169 4 3 |
| 147(3) 6 (37) | 47 14789 1478 | 19 5 2 |
| 9 14 5 | 3 146 2 | 7 16 8 |
+------------------------+--------------------+----------------+
| -7(3) 78-3(5) 1 | (57) 578 9 | 4 2 6 |
| 247 2478(59) 789 | 4567 3 45678 | 18 178 (59) |
| 47 478(59) 6 | 1 2 4578 | 3 78 (59) |
+------------------------+--------------------+----------------+
| 12 128 4 | 9 16 3 | 5 68 7 |
| 5 138 38 | 2 167 167 | 68 9 4 |
| 6 7(9) (79) | 8 45 45 | 2 3 1 |
+------------------------+--------------------+----------------+ |
based on the UR59 r56c29, there exists only one other 5 and 9 in column 2 to prevent the UR from happening.
(7=5)r4c4 - UR59[(5)r4c2 = (9)r9c2] - (9=7)r9c3 - (7=3)r2c3 - (3)r2c1 = (3)r4c1;
r4c1 <> 7
r4c2 <> 3
 |
|
| Back to top |
|
|
arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
|
| Posted: Mon Mar 29, 2010 7:51 am Post subject: |
|
|
or..... | Code: | *-----------------------------------------------------------------------------*
| 8 17 2 | 567 15679 1567 | 169 4 3 |
| 1347 6 37 | 47 14789 1478 | 19 5 2 |
| 9 14 5 | 3 146 2 | 7 16 8 |
|-------------------------+-------------------------+-------------------------|
| 37 3578 1 | 57 578 9 | 4 2 6 |
| 247 245789 789 | 4567 3 45678 | 18 178 59 |
| 47 45789 6 | 1 2 4578 | 3 78 59 |
|-------------------------+-------------------------+-------------------------|
| 12 128 4 | 9 16 3 | 5 68 7 |
| 5 138 38 | 2 167 167 | 68 9 4 |
| 6 79 79 | 8 45 45 | 2 3 1 |
*-----------------------------------------------------------------------------*
link up the 68's in block 9 for a one stepper
(8=6)r7c8-(6=1)r7c5-r7c1=(1-3)r2c1=r2c3-(3=8)r8c3-(8=6)r8c7; r7c8<>6, r8c7<>8
|
|
|
| Back to top |
|
|
Mogulmeister
Joined: 03 May 2007
Posts: 1151
|
| Posted: Mon Mar 29, 2010 8:41 am Post subject: |
|
|
| I like them both - and being visual, particularly the diagram Norm. |
|
| Back to top |
|
|
Mogulmeister
Joined: 03 May 2007
Posts: 1151
|
| Posted: Mon Mar 29, 2010 10:15 am Post subject: |
|
|
How about this ALS which also solves the puzzle:
First ALS is <137> shown in green
Second ALS is <1238> shown in orange
Locked/restricted common is 3 ar r28c3
The 1 at r7c2 (Blue) can see all the 1s in both sets and is eliminated.
A third way. |
|
| Back to top |
|
|
Mogulmeister
Joined: 03 May 2007
Posts: 1151
|
| Posted: Mon Mar 29, 2010 10:25 am Post subject: |
|
|
A great puzzle Danny with a high entertainment level - thanks!
PS Will try and figure out how to create pencil marks and/or go over to Norm's diagramming system as I know these tinypic renditions eventually die as I note from some of my postings a few years ago. I just find colours and cells more illuminating than the ascii prints. |
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Tue Mar 30, 2010 4:42 am Post subject: |
|
|
| In case any other amateurs read this, I used a half-dozen ERs and an XY-Wing (173). |
|
| Back to top |
|
|
Mogulmeister
Joined: 03 May 2007
Posts: 1151
|
| Posted: Wed Mar 31, 2010 5:06 pm Post subject: |
|
|
| I like the ER very much - good to see it making a return. |
|
| Back to top |
|
|
daj95376
Joined: 23 Aug 2008
Posts: 3854
|
| Posted: Wed Mar 31, 2010 8:39 pm Post subject: |
|
|
| Marty R. wrote: | | In case any other amateurs read this, I used a half-dozen ERs and an XY-Wing (173). |
I don't have anything against those who enjoy finding and posting chains, but it's reassuring to know that others are able to solve my puzzles using VH and VH+ steps. I spend quite a bit of time sorting through potential puzzles to post, and I use VH and VH+ steps most of the time to make my final decision on posting a puzzle.
Regards, Danny |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
