maheshkumar84
Sudoku Player
Registered: 07/30/10
Posts: 2
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| | 07/30/10 at 01:48 PM | Reply with quote | #1 |
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| | 6 | | | 2 | | | | 3 | | 2 | 1 | | | | 4 | 6 | | 7 | | | 7 | 8 | 6 | | | 2 | | | | | 9 | | 1 | 4 | 5 | 7 | 2 | 8 | | | | 2 | 3 | 7 | 8 | 9 | 1 | 6 | | 1 | 8 | 7 | 2 | 9 | 6 | 3 | 4 | 5 | | | | 1 | | | | 5 | 6 | | | | | | 5 | | | | 3 | | | 9 | | | | 6 | | | 7 | |
HI GUYS... THIS WAS MARKED HARD IN ONE OF THE LOCAL NEWSPAPERS... I COULDN'T GET FARTHER THAN THIS... CAN ANY ONE HELP ME? |
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leeo
Sudoku Solver
Registered: 07/15/10
Posts: 8
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| | 07/30/10 at 07:36 PM | Reply with quote | #2 |
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Code:
```45 ```6 459 | `789 ``2 `179 | 148 589 ```3
````2 ```1 359 | ``89 358 ```4 | ``6 589 ```7
``345 ```7 ``8 | ```6 135 `139 | ``2 `59 `149
---------------+---------------+--------------
```36 ```9 `36 | ```1 ``4 ```5 | ``7 ``2 ```8
```45 ``45 ``2 | ```3 ``7 ```8 | ``9 ``1 ```6
````1 ```8 ``7 | ```2 ``9 ```6 | ``3 ``4 ```5
---------------+---------------+--------------
*3478 `234 ``1 | 4789 `38 2379 | ``5 ``6 `249
*4678 ``24 `46 | ```5 `18 1279 | 148 ``3 1249
````9 2345 345 | ``48 ``6 `123 | 148 ``7 `124
*there is a hidden pair {78} in box 7 positions 1 and 4. If there were any candidate but {7} or {8} in either place, then there would'nt be enough places in box 7 for a placement of any {7} or {8}
Code:
*45 ```6 459 | `789 ``2 `179 | 148 589 ```3
``2 ```1 359 | ``89 358 ```4 | ``6 589 ```7
345 ```7 ``8 | ```6 135 `139 | ``2 `59 `149
-------------+---------------+--------------
`36 ```9 `36 | ```1 ``4 ```5 | ``7 ``2 ```8
*45 ``45 ``2 | ```3 ``7 ```8 | ``9 ``1 ```6
``1 ```8 ``7 | ```2 ``9 ```6 | ``3 ``4 ```5
-------------+---------------+--------------
`78 `234 ``1 | 4789 `38 2379 | ``5 ``6 `249
`78 ``24 `46 | ```5 `18 1279 | 148 ``3 1249
``9 2345 345 | ``48 ``6 `123 | 148 ``7 `124
additionally, there is a naked pair {45} in column 1. This pre-empts the candidates {45} in r3c1, leaving only the {3} there. From that point hidden and naked singles are enough to solve the puzzle.
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maheshkumar84
Sudoku Player
Registered: 07/30/10
Posts: 2
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