Dan's Daunting October 25, 2013

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Dan's Daunting October 25, 2013

Postby ArkieTech » Thu Oct 24, 2013 11:28 pm

Code: Select all
 *-----------*
 |.3.|...|9..|
 |..8|..6|..5|
 |.74|...|16.|
 |---+---+---|
 |...|36.|...|
 |.26|.9.|75.|
 |...|.47|...|
 |---+---+---|
 |.65|...|23.|
 |8..|5..|6..|
 |..9|...|.4.|
 *-----------*


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Last edited by ArkieTech on Fri Oct 25, 2013 4:40 pm, edited 1 time in total.
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Re: Dan's Daughting October 25, 2013

Postby Leren » Fri Oct 25, 2013 3:15 am

Code: Select all
*--------------------------------------------------------------*
| 6     3     12     | 7     5    A12     | 9     8     4      |
|C12    9     8      | 4     2-1   6      | 3     7     5      |
| 5     7     4      | 89    38    389    | 1     6     2      |
|--------------------+--------------------+--------------------|
| 19    8     7      | 3     6     5      | 4     2     19     |
| 4     2     6      | 18    9     18     | 7     5     3      |
| 139   5     13     | 2     4     7      | 8     19    6      |
|--------------------+--------------------+--------------------|
| 7     6     5      | 189  B18    4      | 2     3     189    |
| 8     4     23     | 5     1237  1239   | 6     19    179    |
|C23    1     9      | 6     2378 S238    | 5     4     78     |
*--------------------------------------------------------------*

3 Petal Death Blossom: (1=2) r1c6 - 2 r9c6; (1=8) r7c5 - 8 r9c6; (1=3) r29c1 - 3 r9c6; => - 1 r2c5; stte

Daughting ?? Did you mean Daunting ?

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Re: Dan's Daughting October 25, 2013

Postby pjb » Fri Oct 25, 2013 5:05 am

Finally free from RFS duties!

Code: Select all
 6      3     a12     | 7      5     b12     | 9      8      4     
 1-2    9      8      | 4     c12     6      | 3      7      5     
 5      7      4      | 89     38     389    | 1      6      2     
 ---------------------+----------------------+---------------------
 19     8      7      | 3      6      5      | 4      2      19     
 4      2      6      | 18     9      18     | 7      5      3     
 139    5      13     | 2      4      7      | 8      19     6     
 ---------------------+----------------------+---------------------
 7      6      5      | 189   d18     4      | 2      3      189   
 8      4      3-2    | 5      1237   1239   | 6      19     179   
f23     1      9      | 6      2378  e238    | 5      4      78     

(2=1) r1c3 - (1=2) r1c6 - r9c6;
(2=1) r1c3 - (1=2) r1c6 - (2=1) r2c5 - (1=8) r7c5 - (28=3) r9c6 - (3=2) r9c1 => -2 r2c1, r8c3; stte

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Re: Dan's Daughting October 25, 2013

Postby daj95376 » Fri Oct 25, 2013 7:01 am

From my solver ... and just because I like the pattern!

Code: Select all
                             (1=2)r1c6
                            /          \
(2)r9c1 = r2c1 - (2=1)r2c5 -            - (28=3)r9c6  =>  r9c1<>3
                            \          /
                             (1=8)r7c5

This makes another solution using the candidates in r9c6.
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Re: Dan's Daughting October 25, 2013

Postby Marty R. » Fri Oct 25, 2013 3:55 pm

Code: Select all
+----------+---------------+----------+
| 6   3 12 | 7   5    12   | 9 8  4   |
| 12  9 8  | 4   12   6    | 3 7  5   |
| 5   7 4  | 89  38   389  | 1 6  2   |
+----------+---------------+----------+
| 19  8 7  | 3   6    5    | 4 2  19  |
| 4   2 6  | 18  9    18   | 7 5  3   |
| 139 5 13 | 2   4    7    | 8 19 6   |
+----------+---------------+----------+
| 7   6 5  | 189 18   4    | 2 3  189 |
| 8   4 23 | 5   1237 1239 | 6 19 179 |
| 23  1 9  | 6   2378 238  | 5 4  78  |
+----------+---------------+----------+

Play this puzzle online at the Daily Sudoku site

Lazy way out, don't have to search for a chain.

1) W-Wing (18), r5c6,r7c5, SL1 in c4=>r9c6<>8
2) Finned X-Wing (2), r18=>r9c6<>2

I think he meant "Daughting", something that exists only in Arkansas-ese. :?: :lol:

Maybe it has something to do with a female child. :idea:
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Re: Dan's Daughting October 25, 2013

Postby ArkieTech » Fri Oct 25, 2013 4:39 pm

Marty R. wrote:I think he meant "Daughting", something that exists only in Arkansas-ese. :?: :lol:

Maybe it has something to do with a female child. :idea:


In Arkansas it is daunting to find a chain in this puzzle. Even if you misspell it. :lol:
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Re: Dan's Daunting October 25, 2013

Postby Marty R. » Fri Oct 25, 2013 5:05 pm

In Arkansas it is daunting to find a chain in this puzzle. Even if you misspell it


I'm sorry you changed it to a real word. A real word is -0- fun when compared to Rat-dat-it, Dinkum and Dinki-Di. :(
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Re: Dan's Daughting October 25, 2013

Postby daj95376 » Fri Oct 25, 2013 5:10 pm

Leren wrote:
Code: Select all
*--------------------------------------------------------------*
| 6     3     12     | 7     5    A12     | 9     8     4      |
|C12    9     8      | 4     2-1   6      | 3     7     5      |
| 5     7     4      | 89    38    389    | 1     6     2      |
|--------------------+--------------------+--------------------|
| 19    8     7      | 3     6     5      | 4     2     19     |
| 4     2     6      | 18    9     18     | 7     5     3      |
| 139   5     13     | 2     4     7      | 8     19    6      |
|--------------------+--------------------+--------------------|
| 7     6     5      | 189  B18    4      | 2     3     189    |
| 8     4     23     | 5     1237  1239   | 6     19    179    |
|C23    1     9      | 6     2378 S238    | 5     4     78     |
*--------------------------------------------------------------*

3 Petal Death Blossom: (1=2) r1c6 - 2 r9c6; (1=8) r7c5 - 8 r9c6; (1=3) r29c1 - 3 r9c6; => - 1 r2c5; stte

Leren,

I don't know anything about Death Blossom solutions, but your solution reminds me of a Kraken Cell (forcing chain) run in reverse.

Code: Select all
(2)r9c6 -             (2=1)r1c6 - (1)r2c5
(3)r9c6 - (3=2)r9c1 - (2=1)r2c1 - (1)r2c5
(8)r9c6 -             (8=1)r7c5 - (1)r2c5
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Re: Dan's Daunting October 25, 2013

Postby Leren » Fri Oct 25, 2013 8:49 pm

daj 95376 wrote; Leren, I don't know anything about Death Blossom solutions, but your solution reminds me of a Kraken Cell (forcing chain) run in reverse.

Dan recently used a similar move here http://forum.enjoysudoku.com/vanhegan-extreme-september-30-2013-t31396.html and called it a Death Blossom so who was I to argue.

As far as I can tell an N-petal Death Blossom is an N-candidate Kraken cell where the individual forcing chains are limited to ALSs, so the most common, a 2 petal Death Blossom, is equivalent to an ALS XY Wing with the middle ALS being a bi-value cell.

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Re: Dan's Daunting October 25, 2013

Postby Leren » Fri Oct 25, 2013 9:39 pm

Marty R Wrote: A real word is -0- fun when compared to Rat-dat-it, Dinkum and Dinki-Di.

Oi! who said Dinkum and Dinki-Di aren't real words :x . Anyway, here are a few fun suggestions for D words:

diddled - contains the most d's (4). Other words have 4 d's but this is only one I know of that starts with d.

detartrated - the longest palindrome beginning (and ending) with d

demethylchlortetracycline - the longest word starting with d

disestablishmentarianism - possibly the second longest word starting with d and meaning: favoring the separation of church and state.

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Re: Dan's Daunting October 25, 2013

Postby tlanglet » Fri Oct 25, 2013 10:30 pm

Code: Select all
 *-----------------------------------------------------------*
 | 6     3     12    | 7     5     12    | 9     8     4     |
 | 12    9     8     | 4     12    6     | 3     7     5     |
 | 5     7     4     | 89    38    389   | 1     6     2     |
 |-------------------+-------------------+-------------------|
 | 19    8     7     | 3     6     5     | 4     2     19    |
 | 4     2     6     | 18    9     18    | 7     5     3     |
 | 139   5     13    | 2     4     7     | 8     19    6     |
 |-------------------+-------------------+-------------------|
 | 7     6     5     | 189   18    4     | 2     3     189   |
 | 8     4     23    | 5     1237  1239  | 6     19    179   |
 | 23    1     9     | 6     2378  238   | 5     4     78    |
 *-----------------------------------------------------------*

As I recently noted, it is sometimes difficult to find an unique solution if you post late. However, I found an one-of-a-kind solution today: An Almost Coloring (2) with & without cell r9c5 containing the digit 2.

r9c5<>2: Coloring (2) => r8c5,r9c6, r1c6, r2c1, r8c3

r9c5=2: (2-7)r9c5*=(7-8)r9c9=8r7c9-(8=12)r72c5**-2r2c1=2r9c1 => r8c5*,r9c6*, r1c6**, r2c1**, r8c3

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Re: Dan's Daughting October 25, 2013

Postby Marty R. » Fri Oct 25, 2013 11:24 pm

daj95376 wrote:From my solver ... and just because I like the pattern!

Code: Select all
                             (1=2)r1c6
                            /          \
(2)r9c1 = r2c1 - (2=1)r2c5 -            - (28=3)r9c6  =>  r9c1<>3
                            \          /
                             (1=8)r7c5

This makes another solution using the candidates in r9c6.


Danny, that's an impressive way of proving a 3!!
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Re: Dan's Daunting October 25, 2013

Postby Marty R. » Fri Oct 25, 2013 11:25 pm

Leren wrote:
Marty R Wrote: A real word is -0- fun when compared to Rat-dat-it, Dinkum and Dinki-Di.

Oi! who said Dinkum and Dinki-Di aren't real words :x . Anyway, here are a few fun suggestions for D words:

diddled - contains the most d's (4). Other words have 4 d's but this is only one I know of that starts with d.

detartrated - the longest palindrome beginning (and ending) with d

demethylchlortetracycline - the longest word starting with d

disestablishmentarianism - possibly the second longest word starting with d and meaning: favoring the separation of church and state.

Leren


Also impressive, as I love words.
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Re: Dan's Daunting October 25, 2013

Postby Leren » Sat Oct 26, 2013 12:05 am

How about Dumbledore - you'd have to be a real wizard to solve a puzzle with that title ;) .

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Re: Dan's Daunting October 25, 2013

Postby Luke » Sat Oct 26, 2013 2:51 am

I'm waiting to see "Dan's Dangler."
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