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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Mon Jun 22, 2009 1:43 pm Post subject: patterngame 2 |
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from sudoku.com forum
for the pincher crowd -- a one stepper.
Code: |
*-----------*
|..1|23.|4..|
|...|...|.5.|
|.6.|...|.7.|
|---+---+---|
|5.4|3..|...|
|.7.|...|...|
|2.8|1..|...|
|---+---+---|
|.5.|...|.9.|
|...|...|.3.|
|..9|48.|1..|
*-----------*
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Play this puzzle online
After Basics Code: |
*--------------------------------------------------------------------*
| 7 89 1 | 2 3 5 | 4 68 689 |
| 3489 23489 23 | 7 1469 14689 | 389 5 1389 |
| 3489 6 5 | 89 149 1489 | 2389 7 12389 |
|----------------------+----------------------+----------------------|
| 5 19 4 | 3 2679 2689 | 26789 1268 26789 |
| 1369 7 36 | 589 2459 2489 | 23589 1248 2389 |
| 2 39 8 | 1 45679 469 | 35679 46 3679 |
|----------------------+----------------------+----------------------|
| 148 5 27 | 6 12 3 | 278 9 2478 |
| 148 148 267 | 59 1259 129 | 2678 3 24678 |
| 36 23 9 | 4 8 7 | 1 26 5 |
*--------------------------------------------------------------------*
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wapati
Joined: 10 Jun 2008 Posts: 472 Location: Brampton, Ontario, Canada.
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Posted: Tue Jun 23, 2009 9:52 am Post subject: |
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I see an xy-chain that eliminates on several candidates.
Code: | *---------------------------------------------------------------------*
| 7 *89 1 | 2 3 5 | 4 *68 69-8 |
| 3489 248-9-3 23 | 7 1469 14689 | 389 5 1389 |
| 3489 6 5 | 89 149 1489 | 2389 7 12389 |
|-----------------------+----------------------+----------------------|
| 5 1-9 4 | 3 2679 2689 | 26789 128-6 26789 |
| 1369 7 36 | 589 2459 2489 | 23589 1248 2389 |
| 2 *39 8 | 1 45679 469 | 35679 4-6 3679 |
|-----------------------+----------------------+----------------------|
| 148 5 27 | 6 12 3 | 278 9 2478 |
| 148 148 267 | 59 1259 129 | 2678 3 24678 |
| 36 *23 9 | 4 8 7 | 1 *26 5 |
*---------------------------------------------------------------------* |
That leaves a 36 w-wing that finishes it off, that's be shortest path I found. |
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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Tue Jun 23, 2009 12:03 pm Post subject: |
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After Basics Code: |
*--------------------------------------------------------------------*
| 7 89 1 | 2 3 5 | 4 68 689 |
| 3489 23489 23 | 7 1469 14689 | 389 5 1389 |
| 3489 6 5 | 89 149 1489 | 2389 7 12389 |
|----------------------+----------------------+----------------------|
| 5 19 4 | 3 2679 2689 | 26789 1268 26789 |
| 1369 7 36 | 589 2459 2489 | 23589 1248 2389 |
| 2 39 8 | 1 45679 469 | 35679 46 3679 |
|----------------------+----------------------+----------------------|
| 148 5 27 | 6 12 3 | 278 9 2478 |
| 148 148 267 | 59 1259 129 | 2678 3 24678 |
| 36 23 9 | 4 8 7 | 1 26 5 |
*--------------------------------------------------------------------*
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You can link a 36 w-wing with an XY-Chain:
(6=3)r5c3-(3=9)r6c2-(9=8)r1c2-(8=6)r1c8-(6=2)r9c8-(2=3)r9c2-(3=6)r9c1=>r8c3,r5c1<>6
for one step
Hope I got the Eureka right. |
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