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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Tue Jul 19, 2011 10:58 pm Post subject: Puzzle 11/07/19: ~ Advanced |
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| Code: | +-----------------------+
| . 2 5 | 6 . . | 3 . . |
| 9 . . | 2 5 . | . . . |
| 6 . 1 | 3 4 . | 2 . . |
|-------+-------+-------|
| 5 4 6 | 9 8 . | 7 2 . |
| . 9 8 | 7 . . | . 4 . |
| . . . | . . . | . . . |
|-------+-------+-------|
| 2 . 3 | 8 . . | 9 . . |
| . . . | 5 7 . | . . 2 |
| . . . | . . . | . 5 . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Wed Jul 20, 2011 3:02 am Post subject: |
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I found a fun two step solution assuming I truly understand the info provided by Keith and Asellus.
| Code: | *--------------------------------------------------------------------*
| 478 2 5 | 6 19 1789 | 3 1789 14789 |
| 9 3 47 | 2 5 178 | 1468 1678 14678 |
| 6 78 1 | 3 4 789 | 2 789 5 |
|----------------------+----------------------+----------------------|
| 5 4 6 | 9 8 13 | 7 2 13 |
| 13 9 8 | 7 1236 12356 | 156 4 136 |
| 137 17 2 | 14 136 13456 | 1568 13689 13689 |
|----------------------+----------------------+----------------------|
| 2 5 3 | 8 16 146 | 9 17 147 |
| 148 168 49 | 5 7 39 | 1468 1368 2 |
| 1478 1678 479 | 14 239 239 | 1468 5 13468 |
*--------------------------------------------------------------------* |
#1: Almost Sue de Coq (12369)b8c5; r9c6<>9*, r1c5<>1
ab=(126)r56c5 with fin (3)r56c5
cd=(39)r8c6
If SdC is true: r1c5<>1, r9c6<>39
If fin is true: (3)r56c5-r4c6=r4c9-r9c9=r8c8-(3=*9)r8c6-r13c6=(9-1)r1c5;
#2: (1)r7c5=(1)r6c5-(1=4)r6c4-aur(56)r56c67[(4)r6c6=(8)r6c7]-(8=6)r6c8=(6=18)r2c86-(1)r2c7=r89c7; r7c8<>1=7
[Edit:I returned to this puzzle looking for another solution and found an almost skyscraper that matched the resultant code of the almost SdC even though the two steps had different initial deletions. Interesting but maybe not surprising......
almost skyscraper(3)r6c58 with fin(3)r5c5; r9c9<>3
If fin is true (3)r5c5-r4c6=r4c9;]
Ted |
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susume
Joined: 13 May 2011
Posts: 36
Location: Southeastern US
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| Posted: Fri Jul 22, 2011 2:56 am Post subject: |
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coloring (or turbot fish or whatever it's called): (3)r4c6=r4c9-r9c9=r8c8 => r8c6<>3=9
After which:
| Code: | +--------+-----------+--------------+
| 4 2 5 | 6 9 18 | 3 178 78 |
| 9 3 7 | 2 5 18 | 1468 168 468 |
| 6 8 1 | 3 4 7 | 2 9 5 |
+--------+-----------+--------------+
| 5 4 6 | 9 8 3 | 7 2 1 |
| 1 9 8 | 7 2 56 | 56 4 3 |
| 3 7 2 | 14 16 456 | 568 68 9 |
+--------+-----------+--------------+
| 2 5 3 | 8 16 46 | 9 17 47 |
| 8 16 4 | 5 7 9 | 16 3 2 |
| 7 16 9 | 14 3 2 | 1468 5 468 |
+--------+-----------+--------------+ |
(8=7)r1c9-[UR18 (7=6)r12c8]-(6=8)r6c8 => r12c8<>8 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Jul 23, 2011 4:24 am Post subject: |
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Skyscraper; r6c8, r9c9<>3
Type 3 UR (56-56-564-568); the 8 proves a 4 in r7c9, creating pincers; r7c6<>4 |
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