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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Mon Jan 11, 2010 9:25 am Post subject: Puzzle 10/01/11 (A) |
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| Code: | +-----------------------+
| 8 . . | . 4 . | . 9 . |
| . . . | . . 6 | . . . |
| . . 6 | 7 3 . | . . . |
|-------+-------+-------|
| . . 4 | 8 . . | . . . |
| 6 . 9 | . . 3 | . 2 4 |
| . 8 . | . 2 . | . 3 9 |
|-------+-------+-------|
| . . . | . . . | 9 . . |
| 9 . . | . 6 7 | . 5 3 |
| . . . | . 8 1 | . 4 . |
+-----------------------+
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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: Mon Jan 11, 2010 2:02 pm Post subject: |
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A couple of unusual moves for me for a total of five steps.
| Quote: | (7)r4c8 - (7=1)r6c7 - r8c7 = r8c2 - (1=7)r5c2 - r5c5 = r4c5 - (7=6)r4c8; r4c8<>7,
xy-wing 12-7 with vertex in r8c2 and pseudocell 27 in r68c7,
Sashimi x-wing on 1 in r68c27,
finned x-wing 7 in r19c39,
(6=4)r7c2 - (4=7)r7c1 - r2c1 = r1c3 - (7=6)r1c9; r7c9<>6 to complete the puzzle.
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Ted |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Mon Jan 11, 2010 2:07 pm Post subject: |
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Three steps: | Quote: | w-wing 71
Kite 7
xyz-wing 687 |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Mon Jan 11, 2010 6:34 pm Post subject: |
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| This puzzle has a traditional UR that still needs two more steps to complete the puzzle. However, there's a one-stepper UR present as well. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Jan 12, 2010 11:01 pm Post subject: |
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| Couldn't find a useful UR or a W on 17. I played a Type 4 UR on 78 between ERs on 1 and 7. That reduced the grid to a very easy BUG+2. |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Wed Jan 13, 2010 12:13 am Post subject: |
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Aaaack!!!! I didn't word it properly.
After some fish eliminations should have preceeded my previous statement. Sorry!!!
| Code: | <78> UR r27c89
r2c9=5 r3c9=2 r3c7<>2 r9c7=2 => r9c7<>6
r7c9=6 => r9c7<>6
+-----------------------------------------------------+
| 8 1 37 | 2 4 5 | 36 9 67 |
| 37 45 2 | 1 9 6 | 34 78 578 |
| 45 9 6 | 7 3 8 | 24 1 25 |
|-----------------+-----------------+-----------------|
| 2 3 4 | 8 7 9 | 5 6 1 |
| 6 7 9 | 5 1 3 | 8 2 4 |
| 1 8 5 | 6 2 4 | 7 3 9 |
|-----------------+-----------------+-----------------|
| 47 46 1 | 3 5 2 | 9 78 678 |
| 9 2 8 | 4 6 7 | 1 5 3 |
| 357 56 37 | 9 8 1 | 26 4 267 |
+-----------------------------------------------------+
# 24 eliminations remain
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Replaces ...
| Code: | r27c89 <78> UR Type 4 <> 7 r27c9
c39 X-Wing <> 7 r9c1
r27 X-Wing <> 7 r9c1
BUG+1 = 6 r9c9
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