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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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 Posted: Sun Apr 29, 2012 12:05 am Post subject: Vanhegan extremee |
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Puzzle #6-625083, rated 2.2.0.1.1.
Played five not-very-helpful moves and am hopelessly stuck. Can't even Medusa my way out of it.
| Code: |
+--------------+---------------+---------------+
| 5 1 28 | 6 7 38 | 4 9 23 |
| 6 3 789 | 4 2 589 | 178 158 157 |
| 279 789 4 | 1 59 3589 | 367 568 257 |
+--------------+---------------+---------------+
| 8 59 359 | 2 1569 7 | 1369 4 159 |
| 139 4 6 | 8 159 59 | 2 7 1359 |
| 179 2 579 | 3 1569 4 | 169 156 8 |
+--------------+---------------+---------------+
| 23 78 23 | 79 4 6 | 5 18 179 |
| 4 579 1 | 579 8 2 | 79 3 6 |
| 79 6 5789 | 579 3 1 | 789 2 4 |
+--------------+---------------+---------------+
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Play this puzzle online at the Daily Sudoku site |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Sun Apr 29, 2012 12:46 am Post subject: |
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Marty,
You have a wildcat by its tail in this one!!!
My solver didn't find anyplace pretty to go from here. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Apr 29, 2012 1:22 am Post subject: |
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| If I had made some mechanical error and this grid was not valid, would your solver have noted that? |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Sun Apr 29, 2012 3:01 am Post subject: |
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| Marty R. wrote: | | If I had made some mechanical error and this grid was not valid, would your solver have noted that? |
Yes. It found a solution, but it's far from "fun". |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Apr 29, 2012 3:41 am Post subject: |
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| Thanks. I won't waste any further time on it. Funny how one like this is impossible and others with similar ratings are one- or two-steppers. |
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JC Van Hay
Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
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| Posted: Sun Apr 29, 2012 8:21 am Post subject: |
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The simplest I can see in this puzzle ...
| Code: | +-----------------------+--------------------+---------------------+
| 5 1 28 | 6 7 38 | 4 9 23 |
| 6 3 89(7) | 4 2 589 | 8(17) 158 15(7) |
| 279 789 4 | 1 59 3589 | 367 568 257 |
+-----------------------+--------------------+---------------------+
| 8 (59) (59)+3 | 2 1569 7 | 693(1) 4 (159) |
| 19-3 4 6 | 8 159 59 | 2 7 1359 |
| 179 2 (579) | 3 1569 4 | 69(1) 156 8 |
+-----------------------+--------------------+---------------------+
| 23 (78) 2-3 | (79) 4 6 | 5 18 (179) |
| 4 59+7 1 | 59+7 8 2 | (79) 3 6 |
| 79 6 59+78 | 59+7 3 1 | 789 2 4 |
+-----------------------+--------------------+---------------------+
#1. r7c3=3 => NP(59)r4c23 => r6c3=7 AND r4c9=1, r2c7=1 => r2c9=7, r7c9=9 ....
... => r7c4=7, r7c2=8 AND r8c7=7 => DP(59)r4c23.r8c2.r9c3.r89c4 => -3r7c3
#2. Skyscraper(7C27) :=> -7r2c3.r3c9 |
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