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Mogulmeister
Joined: 03 May 2007
Posts: 1151
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 Posted: Fri Nov 20, 2009 6:09 am Post subject: Sudoku.org.uk - #1594 - 20th Nov 09 |
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Sudoku.org.uk classed diabolical but in reality a fiendish I suspect.
| Code: | +---+---+---+
|...|...|6..|
|754|...|.9.|
|.3.|.25|.7.|
+---+---+---+
|..5|.8.|...|
|.68|5.2|94.|
|...|.4.|2..|
+---+---+---+
|.4.|79.|.2.|
|.8.|...|567|
|..6|...|...|
+---+---+---+
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Fri Nov 20, 2009 3:12 pm Post subject: |
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My first two moves did the deed.
| Quote: | w-wing 13 with pincer in r2c7 and r7c3 and strong link 1 in row3,
Remote Pair 13 from r5c1 to r9c8 via box6
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Ted |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Fri Nov 20, 2009 8:26 pm Post subject: |
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Ted, your Remote Pair can be viewed as a one-stepper.
| Code: | after basics:
one of r7c79 must be <8>, WHICH MEANS ...
the other cell doesn't contain <8>; alternately ...
General Remote Pair abcdef linked by <3> => r89c1<>1
+--------------------------------------------------------------+
| 8 19 2 | 49 13 7 | 6 5 134 |
| 7 5 4 | 138 6 138 | 13 9 2 |
| 6 3 19 | 49 2 5 | 18 7 148 |
|--------------------+--------------------+--------------------|
| 4 2 5 | 13 8 9 | 7 d13 6 |
| f13 6 8 | 5 7 2 | 9 4 e13 |
| 139 19 7 | 6 4 13 | 2 8 5 |
|--------------------+--------------------+--------------------|
| 5 4 a13 | 7 9 6 | b138 2 b138 |
| 29-1 8 139 | 123 13 4 | 5 6 7 |
| 2-1 7 6 | 1238 5 138 | 4 c13 9 |
+--------------------------------------------------------------+
# 42 eliminations remain
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Of course, this makes my solution completely suck! 
| Code: | <18> UR r37c79:
(3)r7c79 = r9c8 - r4c8 = r5c9 - (3=1)r5c1 - r6c3 ...
... = r1c2 - (1=9)r3c3 - (9=4)r3c4 - (4)r3c9 = <18> UR
+--------------------------------------------------------------+
| 8 19 2 | 49 13 7 | 6 5 134 |
| 7 5 4 | 138 6 138 | 13 9 2 |
| 6 3 19 | 49 2 5 | *18 7 *18+4 |
|--------------------+--------------------+--------------------|
| 4 2 5 | 13 8 9 | 7 13 6 |
| 13 6 8 | 5 7 2 | 9 4 13 |
| 139 19 7 | 6 4 13 | 2 8 5 |
|--------------------+--------------------+--------------------|
| 5 4 13 | 7 9 6 | *18+3 2 *18+3 |
| 129 8 139 | 123 13 4 | 5 6 7 |
| 12 7 6 | 1238 5 138 | 4 13 9 |
+--------------------------------------------------------------+
# 42 eliminations remain
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sat Nov 21, 2009 2:41 am Post subject: |
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Danny, I appreciate the credit for the one-stepper but I missed it completely, including transporting the 1 in r9c8 to r7c3.
Ted |
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