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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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 Posted: Thu Dec 23, 2010 6:16 pm Post subject: Vanhegan Fiendish |
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No. 5-1107817, rated 2.2.0.2, another puzzle with a rating that I normally solve without much difficulty, but I'm stuck after eliminating a couple of 3s.
| Code: |
+-----------------+---------------+------------------+
| 1369 1369 8 | 79 37 4 | 1679 2 5 |
| 3569 569 2 | 1 8 357 | 679 4679 3479 |
| 7 159 4 | 59 2 6 | 19 8 39 |
+-----------------+---------------+------------------+
| 8 4 19 | 2 57 157 | 3 79 6 |
| 1369 7 1369 | 68 346 138 | 49 5 2 |
| 2 36 5 | 67 3467 9 | 47 1 8 |
+-----------------+---------------+------------------+
| 356 2 367 | 4 9 578 | 5678 367 1 |
| 3569 35689 3679 | 5678 1 2 | 56789 34679 479 |
| 4 15689 1679 | 3 567 578 | 2 679 79 |
+-----------------+---------------+------------------+
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Play this puzzle online at the Daily Sudoku site |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Thu Dec 23, 2010 11:15 pm Post subject: |
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marty, there is only one 3 in row 3 in column 9, just fyi.
after that...
| Code: | +-------------------+--------------------+------------------+
| 1369 1369 8 | 79 37 4 | 1679 2 5 |
| 3569 569 2 | 1 8 357 | 679 479 479 |
| 7 159 4 | 59 2 6 | 19 8 3 |
+-------------------+--------------------+------------------+
| 8 4 19 | 2 -7(5) 157 | 3 79 6 |
| 1369 7 1369 | 68 346 138 | 49 5 2 |
| 2 36 5 | (67) 3467 9 | 47 1 8 |
+-------------------+--------------------+------------------+
| 356 2 367 | 4 9 578 | 58 367 1 |
| 3569 35689 3679 | 578(6) 1 2 | 58 34679 479 |
| 4 15689 1679 | 3 7(56) 578 | 2 679 79 |
+-------------------+--------------------+------------------+ |
(7=6)r6c4 - (6)r8c4 = (6-5)r9c5 = (5)r4c5; r4c5 <> 7
that should get you a long way. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Dec 24, 2010 12:44 am Post subject: |
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| Thanks Norm. As egregious as my error with the 3 is, it doesn't gain much. I can't follow your chain, sorry to say. Regardless, it seems a puzzle with this rating ought to have some more conventional moves, but I can't find any. |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Fri Dec 24, 2010 2:46 am Post subject: |
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| Marty R. wrote: | | ... it seems a puzzle with this rating ought to have some more conventional moves, but I can't find any. |
| Code: | +-----------------------------------------------------------------------+
| 1369 1369 8 | 79 37 4 | 1679 2 5 |
| 3569 569 2 | 1 8 357 | 679 4679 3479 |
| 7 159 4 | 59 2 6 | 19 8 39 |
|-----------------------+-----------------------+-----------------------|
| 8 4 19 | 2 57 157 | 3 79 6 |
| 1369 7 1369 | 68 346 138 | 49 5 2 |
| 2 36 5 | 67 3467 9 | 47 1 8 |
|-----------------------+-----------------------+-----------------------|
| 356 2 367 | 4 9 578 | 5678 367 1 |
| 3569 35689 3679 | 5678 1 2 | 56789 34679 479 |
| 4 15689 1679 | 3 567 578 | 2 679 79 |
+-----------------------------------------------------------------------+
# 102 eliminations remain
c7b9 Hidden Pair = 58 r78c7
c8b9 Locked Candidate 1 <> 6 r2c8
r39\c24 Sashimi X-Wing <> 5 r8c4
r16\c57 finned X-Wing <> 7 r4c5
r9 Naked Triple <> 679 r9c236
c7b3 Naked Pair <> 67 r2c9
c1b1 Locked Candidate 1 <> 3 r7c1
+--------------------------------------------------------------+
| 36 1 8 | 9 37 4 | 67 2 5 |
| 356 56 2 | 1 8 37 | 67 49 49 |
| 7 9 4 | 5 2 6 | 1 8 3 |
|--------------------+--------------------+--------------------|
| 8 4 9 | 2 5 1 | 3 7 6 |
| 1 7 36 | 68 4 38 | 9 5 2 |
| 2 36 5 | 67 367 9 | 4 1 8 |
|--------------------+--------------------+--------------------|
| 56 2 367 | 4 9 578 | 58 36 1 |
| 9 3568 367 | 678 1 2 | 58 346 47 |
| 4 58 1 | 3 67 58 | 2 69 79 |
+--------------------------------------------------------------+
# 40 eliminations remain
W-Wing (6=3)r1c1 - r1c5 = r6c5 - (3=6)r6c2 => r2c2<>6
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