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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Tue Feb 16, 2010 11:24 am Post subject: Puzzle 10/02/16 (A) |
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| Code: | +-----------------------+
| 6 . . | . . . | . . . |
| . 4 . | . . 6 | . 8 . |
| . . 5 | . . 1 | 7 . 6 |
|-------+-------+-------|
| . . . | 2 . . | . 6 7 |
| . . . | . . . | 3 . . |
| . 7 6 | . . 8 | . 4 2 |
|-------+-------+-------|
| . . 1 | . 8 . | . . 4 |
| . 3 . | 4 . 2 | . . 5 |
| . . 4 | 6 . 3 | 2 1 . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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Kdelle
Joined: 20 Mar 2008
Posts: 59
Location: Hudson, NH
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| Posted: Tue Feb 16, 2010 3:49 pm Post subject: |
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This one gave me a bit of trouble. I used 3 steps:
UR 27, XYZ 259, AUR 29 to eliminate the 1 in R1C9 which solves the puzzle. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Tue Feb 16, 2010 6:42 pm Post subject: |
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A one step solution: | Code: | *--------------------------------------------------------------------*
| 6 1289 2378 | 3589 27 59 | 4 259 139 |
| 139 4 27 | 359 27 6 | 15 8 139 |
| 389 289 5 | 389 4 1 | 7 29 6 |
|----------------------+----------------------+----------------------|
| 13459 19 39 | 2 35 49 | 8 6 7 |
| 45 28 28 | 17 6 47 | 3 59 19 |
| 359 7 6 | 19 35 8 | 15 4 2 |
|----------------------+----------------------+----------------------|
| 2 6 1 | 57 8 57 | 9 3 4 |
| 89 3 89 | 4 1 2 | 6 7 5 |
| 7 5 4 | 6 9 3 | 2 1 8 |
*--------------------------------------------------------------------*
(9=5)r1c6 - r1c8 = r5c8 - (5=1)r6c7 - (1=9)r6c4; r123c4,r4c6<>9
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Kdelle
Joined: 20 Mar 2008
Posts: 59
Location: Hudson, NH
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| Posted: Tue Feb 16, 2010 7:20 pm Post subject: |
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| arkietech wrote: | A one step solution: | Code: | *--------------------------------------------------------------------*
| 6 1289 2378 | 3589 27 59 | 4 259 139 |
| 139 4 27 | 359 27 6 | 15 8 139 |
| 389 289 5 | 389 4 1 | 7 29 6 |
|----------------------+----------------------+----------------------|
| 13459 19 39 | 2 35 49 | 8 6 7 |
| 45 28 28 | 17 6 47 | 3 59 19 |
| 359 7 6 | 19 35 8 | 15 4 2 |
|----------------------+----------------------+----------------------|
| 2 6 1 | 57 8 57 | 9 3 4 |
| 89 3 89 | 4 1 2 | 6 7 5 |
| 7 5 4 | 6 9 3 | 2 1 8 |
*--------------------------------------------------------------------*
(9=5)r1c6 - r1c8 = r5c8 - (5=1)r6c7 - (1=9)r6c4; r123c4,r4c6<>9
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Dan,
I like it! Thanks!
Kathy |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Feb 16, 2010 11:34 pm Post subject: |
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| Hidden UR (35) and flightless XY-Wing (475) with pincer transport. |
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