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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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 Posted: Fri Aug 29, 2014 5:01 pm Post subject: Free Press August 29, 2014 |
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| Code: |
+-------+-------+-------+
| . . . | . . . | . . . |
| . . . | . . . | 2 6 8 |
| . 7 9 | 1 . . | . 3 . |
+-------+-------+-------+
| 4 . . | 9 2 . | . . . |
| . . . | . . 3 | . 7 . |
| . . . | . 8 7 | . . 4 |
+-------+-------+-------+
| . 1 . | 5 . 2 | 7 . . |
| . 8 5 | . . . | . . . |
| . . 6 | . . . | . . . |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Aug 29, 2014 5:37 pm Post subject: |
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| Code: |
*--------------------------------------------------------------------*
| 6 345 8 | 2 345 45 | 19 19 7 |
| 15 345 13 | 37 34579 459 | 2 6 8 |
| 2 7 9 | 1 6 8 | 4 3 5 |
|----------------------+----------------------+----------------------|
| 4 6 7 | 9 2 c15 | 8 15 3 |
| 8 59 b12 | 4 b15 3 | 6 7 b129 |
| 15 359 123 | 6 8 7 | 159 1259 4 |
|----------------------+----------------------+----------------------|
| 39 1 4 | 5 39 2 | 7 8 6 |
| 379 8 5 | 37 13479 6 | 139 1249 129 |
| 379 2 6 | 8 13479 49-1 | 1359 1459 a19 |
*--------------------------------------------------------------------*
(1=9)r9c9-(9=5)r5c359-(5=1)r4c6 => -1r9c6; ste |
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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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| Posted: Sat Aug 30, 2014 9:51 am Post subject: Free Press August 29, 2014 |
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| Code: |
+-------------+--------------+---------------+
| 6 345 8 | 2 345 45 | 19 19 7 |
| 15 345 13 | 37 34579 459 | 2 6 8 |
| 2 7 9 | 1 6 8 | 4 3 5 |
+-------------+--------------+---------------+
| 4 6 7 | 9 2 15 | 8 15 3 |
| 8 e59 12 | 4 d15 3 | 6 7 12-9 |
| 15 359 123 | 6 8 7 | 159 1259 4 |
+-------------+--------------+---------------+
| 39 1 4 | 5 39 2 | 7 8 6 |
| 379 8 5 | 37 c13479 6 | 139 1249 129 |
| 379 2 6 | 8 b13479 b149 | 1359 1459 a19 |
+-------------+--------------+---------------+
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(9=1)r9c9-r9c56=r8c5-(1=5)r5c5-(5=9)r5c2 => -9r5c9; stte. |
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dongrave
Joined: 06 Mar 2014
Posts: 568
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| Posted: Sat Aug 30, 2014 8:04 pm Post subject: |
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And just for the record, here's the 'Van Hay'-type solution. It looks like all three solutions listed here are using the exact same principle.
r9c9 is 1 or 9; if it's 1 then r9c6<>1 so r4c6=1 so r5c5=5;
if it's 9 then r5c9<>9 so r5c2=9 so r5c5=5; therefore r5c5=5.
My biggest problem now is that I can't seem to find these unless I know the solution - but I don't know the solution unless I'm able to find these. ugh. |
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