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Brain Buster - Mephan Group 8/5/17

 
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mtharp



Joined: 19 Jun 2006
Posts: 30
PostPosted: Wed Aug 30, 2017 1:09 am    Post subject: Brain Buster - Mephan Group 8/5/17 Reply with quote
Working on this one a while. I am a new guy. Could use some help.

Mike

Code:

+-----------+--------------+--------------+
| 8  3  9   | 5   17   2   | 147  6  147  |
| 17 5  4   | 8   1367 367 | 2    9  137  |
| 2  6  17  | 4   9    37  | 137  8  5    |
+-----------+--------------+--------------+
| 4  9  5   | 37  367  8   | 367  1  2    |
| 3  17 8   | 2   5    167 | 67   4  9    |
| 6  17 2   | 9   4    137 | 5    37 8    |
+-----------+--------------+--------------+
| 9  4  137 | 137 2    5   | 8    37 6    |
| 17 2  6   | 137 8    9   | 1347 5  1347 |
| 5  8  137 | 6   37   4   | 9    2  137  |
+-----------+--------------+--------------+
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy
PostPosted: Wed Aug 30, 2017 8:52 am    Post subject: Reply with quote
Hi Mike,

first possible step
UR 1,7 in r56c26 and -7 in r56c6

Ciao Gianni
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Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
PostPosted: Wed Aug 30, 2017 2:35 pm    Post subject: Reply with quote
Hi Mike

Code:

+-----------+--------------+--------------+
| 8  3  9   | 5   17   2   | 147  6  147  |
| 17 5  4   | 8   1367 367 | 2    9  137  |
| 2  6  17  | 4   9    37  | 137  8  5    |
+-----------+--------------+--------------+
| 4  9  5   | 37  367  8   | 367  1  2    |
| 3  17 8   | 2   5    167 | 67   4  9    |
| 6  17 2   | 9   4    137 | 5    37 8    |
+-----------+--------------+--------------+
| 9  4  137 | 137 2    5   | 8    37 6    |
| 17 2  6   | 137 8    9   | 1347 5  1347 |
| 5  8  137 | 6   37   4   | 9    2  137  |
+-----------+--------------+--------------+

Play this puzzle online at the Daily Sudoku site.

My solution with one step after basics.

[(3)R3C7-(3=7)R3C7 and (3-1)R3C7=(1)R3C3-(1)R2C1=(1)R8C1-(1)R8C7=(1)R1C7-(1=7)R1C5]=>contradiction two singles 7 in box 2=>-3R3C7=>solution stte.

Ciao a Tutti

Paolo
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