- Code: Select all
*-----------*
|...|...|...|
|.38|..5|.7.|
|5..|6..|.29|
|---+---+---|
|..2|7..|...|
|.6.|8.2|.4.|
|...|..3|8..|
|---+---+---|
|24.|..8|..5|
|.7.|3..|46.|
|...|...|...|
*-----------*
Play/Print this puzzle online
Vanhegan Fiendish July 15, 2013
10 posts
• Page 1 of 1
Vanhegan Fiendish July 15, 2013
by ArkieTech » Mon Jul 15, 2013 1:04 am
Play/Print this puzzle online
dan
-
ArkieTech - Posts: 3355
- Joined: 29 May 2006
- Location: NW Arkansas USA
Re: Vanhegan Fiendish July 15, 2013
by Leren » Mon Jul 15, 2013 1:17 am
- Code: Select all
*--------------------------------------------------------------*
| 4679 2 479 | 49 3 c147 |b156 a58 468 |
| 469 3 8 | 2 d19 5 | 16 7 46 |
| 5 1 47 | 6 8 47 | 3 2 9 |
|--------------------+--------------------+--------------------|
| 34 8 2 | 7 e19 14 | 56 f9-5 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 | 49 6 3 | 8 19 2 |
|--------------------+--------------------+--------------------|
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
*--------------------------------------------------------------*
(5) r1c8 = (5-1) r1c7 = r1c6 - r2c5 = (1-9) r4c5 = r4c8 => - 5 r4c8; stte
Leren
- Leren
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Re: Vanhegan Fiendish July 15, 2013
by pjb » Mon Jul 15, 2013 2:50 am
Can't get away from DPs:
(1) r2c7 = (1-9) r2c5 = r1c4 - (9=1) [UR: 47 r13c36] => -1 r1c7, r2c5; stte
Phil
Phil
- Code: Select all
4679 2 d#479 |c49 3 e#147 | 56-1 58 468
469 3 8 | 2 b9-1 5 |a16 7 46
5 1 #47 | 6 8 #47 | 3 2 9
---------------------+----------------------+---------------------
34 8 2 | 7 19 14 | 56 59 36
139 6 139 | 8 5 2 | 7 4 13
147 5 147 | 49 6 3 | 8 19 2
---------------------+----------------------+---------------------
2 4 6 | 1 7 8 | 9 3 5
18 7 5 | 3 2 9 | 4 6 18
138 9 13 | 5 4 6 | 2 18 7
(1) r2c7 = (1-9) r2c5 = r1c4 - (9=1) [UR: 47 r13c36] => -1 r1c7, r2c5; stte
Phil
Phil
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Re: Vanhegan Fiendish July 15, 2013
by ArkieTech » Mon Jul 15, 2013 11:37 am
Need help with notation
- Code: Select all
*-----------------------------------------------------------*
| 4679 2 479 | 49 3 147 | 156 58 468 |
| 469 3 8 | 2 9-1 5 |a16 7 46 |
| 5 1 47 | 6 8 47 | 3 2 9 |
|-------------------+-------------------+-------------------|
| 34 8 2 | 7 1-9 14 |b56 c59 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 | 49 6 3 | 8 19 2 |
|-------------------+-------------------+-------------------|
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
*-----------------------------------------------------------*
(1=6)r2c7-(6=5)r4c7-(5=9)r4c8 => -1r2c5, -9r4c5; ste
dan
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ArkieTech - Posts: 3355
- Joined: 29 May 2006
- Location: NW Arkansas USA
Re: Vanhegan Fiendish July 15, 2013
by tlanglet » Mon Jul 15, 2013 1:45 pm
Another view of the AUR(47)r13c36 is: AUR(47)r13c36[9r1c3=1r1c6]-(1=9)r2c5 => r1c4,r2c1 <> 9
Another solution to the puzzle is:
1r1c7=1r1c6-(1=4)r4c6-(4=9)r6c4-r6c8=(9-5)r4c8=5r1c8 => r1c5<>5
Ted
Another solution to the puzzle is:
- Code: Select all
*-----------------------------------------------------------*
| 4679 2 479 | 49 3 *147 |*156 e58 468 |
| 469 3 8 | 2 19 5 | 16 7 46 |
| 5 1 47 | 6 8 47 | 3 2 9 |
|-------------------+-------------------+-------------------|
| 34 8 2 | 7 19 a14 | 56 d59 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 |b49 6 3 | 8 c19 2 |
|-------------------+-------------------+-------------------|
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
*-----------------------------------------------------------*
1r1c7=1r1c6-(1=4)r4c6-(4=9)r6c4-r6c8=(9-5)r4c8=5r1c8 => r1c5<>5
Ted
- tlanglet
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- Joined: 29 May 2010
Re: Vanhegan Fiendish July 15, 2013
by daj95376 » Mon Jul 15, 2013 1:59 pm
ArkieTech wrote:Need help with notation
- Code: Select all
*-----------------------------------------------------------*
| 4679 2 479 | 49 3 147 | 156 58 468 |
| 469 3 8 | 2 9-1 5 |a16 7 46 |
| 5 1 47 | 6 8 47 | 3 2 9 |
|-------------------+-------------------+-------------------|
| 34 8 2 | 7 1-9 14 |b56 c59 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 | 49 6 3 | 8 19 2 |
|-------------------+-------------------+-------------------|
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
*-----------------------------------------------------------*
(1=6)r2c7-(6=5)r4c7-(5=9)r4c8 => -1r2c5, -9r4c5; ste
You need two chains.
- Code: Select all
(9=1)r2c5 - (1=6)r2c7 - (6=5)r4c7 - (5=9)r4c8 => r4c5<>9
(1=6)r2c7 - (6=5)r4c7 - (5=9)r4c8 - (9=1)r4c5 => r2c5<>1
Or one chain with memory.
- Code: Select all
(9=1)r2c5 - (1=6)r2c7 - (6=5)r4c7 - (5=9)r4c8 - (9=1)r4c5 => r2c5<>1, r4c5<>9
- daj95376
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Re: Vanhegan Fiendish July 15, 2013
by tlanglet » Mon Jul 15, 2013 4:52 pm
daj95376 wrote:ArkieTech wrote:Need help with notation
- Code: Select all
*-----------------------------------------------------------*
| 4679 2 479 | 49 3 147 | 156 58 468 |
| 469 3 8 | 2 9-1 5 |a16 7 46 |
| 5 1 47 | 6 8 47 | 3 2 9 |
|-------------------+-------------------+-------------------|
| 34 8 2 | 7 1-9 14 |b56 c59 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 | 49 6 3 | 8 19 2 |
|-------------------+-------------------+-------------------|
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
*-----------------------------------------------------------*
(1=6)r2c7-(6=5)r4c7-(5=9)r4c8 => -1r2c5, -9r4c5; ste
You need two chains.
- Code: Select all
(9=1)r2c5 - (1=6)r2c7 - (6=5)r4c7 - (5=9)r4c8 => r4c5<>9
(1=6)r2c7 - (6=5)r4c7 - (5=9)r4c8 - (9=1)r4c5 => r2c5<>1
Or one chain with memory.
- Code: Select all
(9=1)r2c5 - (1=6)r2c7 - (6=5)r4c7 - (5=9)r4c8 - (9=1)r4c5 => r2c5<>1, r4c5<>9
How about (1=6)r2c7-(6=591)r4c785 => r2c5<>1
It is short and sweet and solves the puzzle, but does not remove the 9 from r4c5
Ted
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Re: Vanhegan Fiendish July 15, 2013
by Leren » Mon Jul 15, 2013 9:22 pm
- Code: Select all
*--------------------------------------------------------------*
| 4679 2 479 |a49 3 17-4 | 156 58 468 |
| 469 3 8 | 2 b19 5 |c16 7 46 |
| 5 1 47 | 6 8 7-4 | 3 2 9 |
|--------------------+--------------------+--------------------|
| 34 8 2 | 7 d19 d14 |d56 d59 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 | 9-4 6 3 | 8 19 2 |
|--------------------+--------------------+--------------------|
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
*--------------------------------------------------------------*
(4=9) r1c4 - (9=1) r2c5 - (1=6) r2c7 - (6=4) r4c5678) => - 4 r13c6, r6c4; stte
Leren
- Leren
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- Joined: 03 June 2012
Re: Vanhegan Fiendish July 15, 2013
by Marty R. » Mon Jul 15, 2013 11:56 pm
- Code: Select all
+------------+-----------+------------+
| 4679 2 479 | 49 3 147 | 156 58 468 |
| 469 3 8 | 2 19 5 | 16 7 46 |
| 5 1 47 | 6 8 47 | 3 2 9 |
+------------+-----------+------------+
| 34 8 2 | 7 19 14 | 56 59 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 | 49 6 3 | 8 19 2 |
+------------+-----------+------------+
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
+------------+-----------+------------+
Play this puzzle online at the Daily Sudoku site
DP (47) r13c46, world's shortest chain?
(9r1c3=1r1c6)-(1=9)r2c5=>r1c4<>9
- Marty R.
- Posts: 1508
- Joined: 23 October 2012
- Location: Rochester, New York, USA
Re: Vanhegan Fiendish July 15, 2013
by Luke » Wed Jul 17, 2013 4:54 am
Marty R. wrote:
- Code: Select all
+------------+-----------+------------+
| 4679 2 479 | 49 3 147 | 156 58 468 |
| 469 3 8 | 2 19 5 | 16 7 46 |
| 5 1 47 | 6 8 47 | 3 2 9 |
+------------+-----------+------------+
| 34 8 2 | 7 19 14 | 56 59 36 |
| 139 6 139 | 8 5 2 | 7 4 13 |
| 147 5 147 | 49 6 3 | 8 19 2 |
+------------+-----------+------------+
| 2 4 6 | 1 7 8 | 9 3 5 |
| 18 7 5 | 3 2 9 | 4 6 18 |
| 138 9 13 | 5 4 6 | 2 18 7 |
+------------+-----------+------------+
Play this puzzle online at the Daily Sudoku site
DP (47) r13c46, world's shortest chain?
(9r1c3=1r1c6)-(1=9)r2c5=>r1c4<>9
I like to call these "Unique w-wings."
-
Luke - 2015 Supporter
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- Joined: 06 August 2006
- Location: Southern Northern California
10 posts
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