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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sat Sep 17, 2011 4:44 pm Post subject: M5965207sh(24) |
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This Menneske is interesting - it took me a number of steps.
Code: | M5965207sh(24)
+-------+-------+-------+
| . . . | 5 . 7 | 3 . . |
| 2 8 . | . . . | 1 . . |
| . . . | . 2 . | . 4 9 |
+-------+-------+-------+
| . 2 4 | 8 . . | . . . |
| . . . | . . 4 | 8 . . |
| . . . | . . . | . 6 . |
+-------+-------+-------+
| 1 . 8 | . . 5 | 4 . . |
| . . . | . . . | . 5 . |
| . 9 . | 6 1 . | . . . |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site
Keith |
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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Sat Sep 17, 2011 6:05 pm Post subject: |
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Thanks Keith It was fun.
Code: | *--------------------------------------------------------------------*
| 69 4 1 | 5 69 7 | 3 8 2 |
| 2 8 69 | 3 4 69 | 1 7 5 |
| 357 57 37 | 1 2 8 | 6 4 9 |
|----------------------+----------------------+----------------------|
| 3679 2 4 | 8 3679 169 | 5 19 37 |
| 35679 1567 3679 | 2 35679 4 | 8 19 37 |
| 8 157 379 | 79 3579 19 | 2 6 4 |
|----------------------+----------------------+----------------------|
| 1 3 8 | 79 79 5 | 4 2 6 |
| 67 67 2 | 4 8 3 | 9 5 1 |
| 4 9 5 | 6 1 2 | 7 3 8 |
*--------------------------------------------------------------------*
(7=6)r8c1-(6=9)r1c1-(9)r1c5=(9)r2c6-(9=1)r6c6-(1)r6c2=(1-6)r5c2=(6=7)r8c2 => r8c1<>6, r8c2<>7
finned x wing (9)r26=(9)r23-(9)r63=(9)r6c567 => r4c6<>9
xy chain (9=6)r1c1-(6=9)r1c5-(9=6)r2c6-(6=1)r4c6-(1=9)r4c8 => r4c1<>9
er (6)r1c1=(6)r1c5-(6)r45c5=6(r4c6) => r4c1<>6 |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sat Sep 17, 2011 7:01 pm Post subject: |
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After basics: Code: | +-------------------+-------------------+-------------------+
| 69 4 1 | 5 69 7 | 3 8 2 |
| 2 8 69 | 3 4 69 | 1 7 5 |
| 357 57 37 | 1 2 8 | 6 4 9 |
+-------------------+-------------------+-------------------+
| 3679 2 4 | 8 3679 169 | 5 19 37 |
| 35679 1567 3679 | 2 35679 4 | 8 19 37 |
| 8 157 379 | 79 3579 19 | 2 6 4 |
+-------------------+-------------------+-------------------+
| 1 3 8 | 79 79 5 | 4 2 6 |
| 67 67 2 | 4 8 3 | 9 5 1 |
| 4 9 5 | 6 1 2 | 7 3 8 |
+-------------------+-------------------+-------------------+
| And now, I can't recall how I solved it! |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sat Sep 17, 2011 9:04 pm Post subject: |
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Part 1: Code: | +-------------------+-------------------+-------------------+
| 69 4 1 | 5 69 7 | 3 8 2 |
| 2 8 69d | 3 4 69c | 1 7 5 |
| 357 57 37 | 1 2 8 | 6 4 9 |
+-------------------+-------------------+-------------------+
| 3679 2 4 | 8 3679 *169 | 5 *19 37 |
| 35679 1567 367-9 | 2 3567-9 4 | 8 19a 37 |
| 8 157 379 | 79 3579 19b | 2 6 4 |
+-------------------+-------------------+-------------------+
| 1 3 8 | 79 79 5 | 4 2 6 |
| 67 67 2 | 4 8 3 | 9 5 1 |
| 4 9 5 | 6 1 2 | 7 3 8 |
+-------------------+-------------------+-------------------+
| The above grid has a UR 79 and an SS on 6. Also, ab are pincers of a W-wing 1-9. With coloring of b to d, making the eliminations shown. Which leaves: Code: | +-------------------+-------------------+-------------------+
|6*9 4 1 | 5 6*9 7 | 3 8 2 |
| 2 8 6*9 | 3 4 69 | 1 7 5 |
| 357 57 37 | 1 2 8 | 6 4 9 |
+-------------------+-------------------+-------------------+
| 379 2 4 | 8 36-79 169 | 5 19 37 |
| 35679 1567 367 | 2 35-7 4 | 8 19 37 |
| 8 157 37*9 | 79b 35 19 | 2 6 4 |
+-------------------+-------------------+-------------------+
| 1 3 8 |-79 79a 5 | 4 2 6 |
| 67 67 2 | 4 8 3 | 9 5 1 |
| 4 9 5 | 6 1 2 | 7 3 8 |
+-------------------+-------------------+-------------------+
| ab are a W-wing -79, making the eliminations shown. Taking us to here: Code: | +-------------------+-------------------+-------------------+
| 69 4 1 | 5 69 7 | 3 8 2 |
| 2 8 69 | 3 4 69 | 1 7 5 |
| 357 57 37 | 1 2 8 | 6 4 9 |
+-------------------+-------------------+-------------------+
| 37 2 4 | 8 69 169 | 5 19 37 |
| 35679 1567 367 | 2 35 4 | 8 19 37 |
| 8 15 39 | 7 35 19 | 2 6 4 |
+-------------------+-------------------+-------------------+
| 1 3 8 | 9 7 5 | 4 2 6 |
| 67 67 2 | 4 8 3 | 9 5 1 |
| 4 9 5 | 6 1 2 | 7 3 8 |
+-------------------+-------------------+-------------------+
| More to come.
Keith |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Sat Sep 17, 2011 10:49 pm Post subject: |
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I used a Skyscraper, Finned X-Wing, XY-Wing, W-Wing and XY-Chain. |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sat Sep 17, 2011 11:06 pm Post subject: |
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Code: | +-------------------+-------------------+-------------------+
| 69 4 1 | 5 69 7 | 3 8 2 |
| 2 8 69 | 3 4 69 | 1 7 5 |
| 357b 57 37c | 1 2 8 | 6 4 9 |
+-------------------+-------------------+-------------------+
| 37 2 4 | 8 69 169 | 5 19 37 |
| 35679 1567 -367 | 2 35a 4 | 8 19 37 |
| 8 15 39 | 7 35 19 | 2 6 4 |
+-------------------+-------------------+-------------------+
| 1 3 8 | 9 7 5 | 4 2 6 |
| 67 67 2 | 4 8 3 | 9 5 1 |
| 4 9 5 | 6 1 2 | 7 3 8 |
+-------------------+-------------------+-------------------+
| M-wing: 5 in a causes 5 in b. ac are pincers on 3. Code: | +-------------------+-------------------+-------------------+
| 69 4 1 | 5 69 7 | 3 8 2 |
| 2 8 69 | 3 4 69 | 1 7 5 |
| 357 57 37 | 1 2 8 | 6 4 9 |
+-------------------+-------------------+-------------------+
|3-7 2 4 | 8 69 169 | 5 19 37 |
|356-79 15*67 67a | 2 35 4 | 8 19 37 |
| 8 15 39 | 7 35 19 | 2 6 4 |
+-------------------+-------------------+-------------------+
| 1 3 8 | 9 7 5 | 4 2 6 |
| 67b *67 2 | 4 8 3 | 9 5 1 |
| 4 9 5 | 6 1 2 | 7 3 8 |
+-------------------+-------------------+-------------------+
| W-wing: ab are pincers on 7.
Puzzle solved.
Keith |
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