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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Fri Jun 11, 2010 1:14 am Post subject: Puzzle 10/06/10: (D) Extreme |
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Ted recently requested that I include AN[PTQ] and AH[PTQ] to my list of techniques. I'm guessing that he's hoping for a puzzle with a little more bite needed to solve it. Enjoy!!!
| Code: | +-----------------------+
| 4 . . | 9 . . | . . 7 |
| . . . | . . 6 | . . . |
| . . 6 | 8 4 2 | 3 . 9 |
|-------+-------+-------|
| 5 . 3 | . . 8 | 7 . 2 |
| . . 4 | . 6 . | . . . |
| . 8 7 | 5 . . | 9 . . |
|-------+-------+-------|
| . . 5 | 2 . 7 | 4 . . |
| . . . | . . . | . . . |
| 9 . 2 | 6 . . | . . 8 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site
| Code: | after basics
+-----------------------------------------------------------------------------------------+
| 4 123 18 | 9 135 15 | 1268 1268 7 |
| 1238 1235 9 | 13 7 6 | 1258 12458 145 |
| 17 157 6 | 8 4 2 | 3 15 9 |
|-----------------------------+-----------------------------+-----------------------------|
| 5 169 3 | 14 19 8 | 7 146 2 |
| 12 129 4 | 7 6 139 | 158 1358 135 |
| 16 8 7 | 5 2 134 | 9 1346 1346 |
|-----------------------------+-----------------------------+-----------------------------|
| 1368 136 5 | 2 1389 7 | 4 1369 136 |
| 13678 13467 18 | 134 13589 1459 | 1256 1235679 1356 |
| 9 1347 2 | 6 135 145 | 15 1357 8 |
+-----------------------------------------------------------------------------------------+
# 113 eliminations remain
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Hint: Don't even think about tackling this puzzle!!! |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Fri Jun 11, 2010 7:13 pm Post subject: |
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Danny,
My inquiry about AN[PTQ] and AH[PTQ] was regarding the "Difficulty of Technique" you considered these steps so that I might use them appropriately when you post puzzles with difficulty limits. Your XY puzzles push my abilities already and I may never be ready for Extreme.
Ted |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Fri Jun 11, 2010 9:42 pm Post subject: |
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| tlanglet wrote: | Danny,
My inquiry about AN[PTQ] and AH[PTQ] was regarding the "Difficulty of Technique" you considered these steps so that I might use them appropriately when you post puzzles with difficulty limits. Your XY puzzles push my abilities already and I may never be ready for Extreme.
Ted |
Hello Ted,
You were clear, but I did a poor job using this post as a reply to you ... and as information to others.
I consider ANHS (Almost Naked/Hidden Subset) techniques to be necessary in the most difficult of puzzles. This puzzle was suppose to be an example of a puzzle that I'd qualify for ANHS.
Members of the Eureka! forum often tackle puzzles that my solver can't solve. They use ANHS techniques, and I can understand why.
Regards, Danny |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Jun 13, 2010 4:44 pm Post subject: |
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| Quote: | | Hint: Don't even think about tackling this puzzle!!! |
I should have followed that hint. 
There were a worthless couple of ERs and XY-Chain but that's it. I haven't tried trial and error and probably won't. |
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