July 22, 2016

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July 22, 2016

Postby ArkieTech » Thu Jul 21, 2016 11:09 pm

Code: Select all
 *-----------*
 |8..|..3|...|
 |.76|...|..3|
 |...|4..|.79|
 |---+---+---|
 |.2.|64.|.3.|
 |.14|.2.|86.|
 |.9.|.17|.5.|
 |---+---+---|
 |36.|..4|...|
 |2..|...|34.|
 |...|7..|..6|
 *-----------*


Play/Print this puzzle online
dan
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Re: July 22, 2016

Postby Leren » Thu Jul 21, 2016 11:12 pm

Code: Select all
*--------------------------------------------------------------*
| 8     45    259    | 1259  7     3      | 6     12   d24-5   |
| 49    7     6      | 1259  59    12     | 1245  8     3      |
| 1     3     25     | 4     68    68     |a25    7     9      |
|--------------------+--------------------+--------------------|
| 7     2     8      | 6     4     5      | 9     3     1      |
| 5     1     4      | 3     2     9      | 8     6     7      |
| 6     9     3      | 8     1     7      |b24    5    c24     |
|--------------------+--------------------+--------------------|
| 3     6     19     | 25    58    4      | 7     19    28     |
| 2     58    7      | 19    69    16     | 3     4     58     |
| 49    458   159    | 7     3     28     | 125   129   6      |
*--------------------------------------------------------------*

H2 Wing: (5=2) r3c7 - r6c7 = (2-4) r6c9 = (4) r1c9 => - 5 r1c9; stte

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Re: July 22, 2016

Postby pjb » Thu Jul 21, 2016 11:37 pm

Code: Select all
 8       45      259    | 1259   7      3      | 6      12     245   
 49      7       6      | 1259   59     12     | 1245   8      3     
 1       3       25     | 4      68     68     | 25     7      9     
------------------------+----------------------+---------------------
 7       2       8      | 6      4      5      | 9      3      1     
 5       1       4      | 3      2      9      | 8      6      7     
 6       9       3      | 8      1      7      | 24     5      24     
------------------------+----------------------+---------------------
 3       6      *19     | 25     58     4      | 7     *19    a28     
 2       8-5     7      | 19     69     16     | 3      4     a58     
 49      458    *159    | 7      3      28     | 12-5  *129    6     

(5=2)r78c9 - (2=5)UR:r79c38 => 5 r8c2, r9c7; stte

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Re: July 22, 2016

Postby Marty R. » Thu Jul 21, 2016 11:44 pm

Code: Select all
+------------+------------+--------------+
| 8  45  259 | 1259 7  3  | 6    12  245 |
| 49 7   6   | 1259 59 12 | 1245 8   3   |
| 1  3   25  | 4    68 68 | 25   7   9   |
+------------+------------+--------------+
| 7  2   8   | 6    4  5  | 9    3   1   |
| 5  1   4   | 3    2  9  | 8    6   7   |
| 6  9   3   | 8    1  7  | 24   5   24  |
+------------+------------+--------------+
| 3  6   19  | 25   58 4  | 7    19  28  |
| 2  58  7   | 19   69 16 | 3    4   58  |
| 49 458 159 | 7    3  28 | 125  129 6   |
+------------+------------+--------------+

Play this puzzle online at the Daily Sudoku site

M-Wing (12) with transport

(2=1)r2c6-r2c7=(1-2)r1c8=r9c8-r9c6=r7c4=> -2r12c4,r9c6
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Re: July 22, 2016

Postby SteveG48 » Fri Jul 22, 2016 12:34 am

Code: Select all
 *-----------------------------------------------------------*
 | 8     45    259   | 1259  7     3     | 6     12   c245   |
 |e49    7     6     | 1259 d59    12    |b125-4 8     3     |
 | 1     3     25    | 4     68    68    |b25    7     9     |
 *-------------------+-------------------+-------------------|
 | 7     2     8     | 6     4     5     | 9     3     1     |
 | 5     1     4     | 3     2     9     | 8     6     7     |
 | 6     9     3     | 8     1     7     |a24    5     24    |
 *-------------------+-------------------+-------------------|
 | 3     6     19    | 25   d58    4     | 7     19   c28    |
 | 2     58    7     | 19    69    16    | 3     4     58    |
 | 49    458   159   | 7     3     28    |b125   129   6     |
 *-----------------------------------------------------------*


(4=2)r6c7 - (2=145)r239c7 - (4|5=28)r17c9 - (8=59)r27c5 - (9=4)r2c15 => -4 r2c7 ; stte

Or:

Code: Select all
 *-----------------------------------------------------------*
 | 8     45    259   | 1259  7     3     | 6     12   c245   |
 | 49    7     6     | 1259  59    12    | 1245  8     3     |
 | 1     3     25    | 4     68    68    |b25    7     9     |
 *-------------------+-------------------+-------------------|
 | 7     2     8     | 6     4     5     | 9     3     1     |
 | 5     1     4     | 3     2     9     | 8     6     7     |
 | 6     9     3     | 8     1     7     |b24    5   ac24    |
 *-------------------+-------------------+-------------------|
 | 3     6     19    | 25    58    4     | 7     19    8-2   |
 | 2     58    7     | 19    69    16    | 3     4     58    |
 | 49    458   159   | 7     3     28    | 125   129   6     |
 *-----------------------------------------------------------*


(2=4)r6c9 - (4=25)r36c7 - (5=24)r16c9 => -2 r7c9 ; stte
Steve
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Re: July 22, 2016

Postby Kozo Kataya » Fri Jul 22, 2016 2:24 am

There are lots of solving methods. i d' like to present the different one.
Between single-digits 1 and 2, both are interrupted each other.
[if r8c4=1] cause [r1c8 must be 1 and/or 2] => contradiction.
Thus [r8c4<>1], instead [r8c6=1] then stte.
Code: Select all
   A: single-digit 1 and 2         B: if 1r8c4 then 12r1c8
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+
|...|1..|.1.|   |..2|...|.22|      |...|*..|.1.|   |..*|...|.2*|
|...|1.1|1..|   |...|2.2|...|      |...|*.1|*..|   |...|2.*|...|
|1..|...|...|   |..2|...|2..|      |1..|...|...|   |..2|...|*..|
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+
|...|...|..1|   |.2.|...|...|      |...|...|..1|   |.2.|...|...|
|.1.|...|...|   |...|.2.|...|      |.1.|..|...|   |...|.2.|...|
|...|.1.|...|   |...|...|2.2|      |...|.1.|...|   |...|...|2.*|
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+
|..1|...|.1.|   |...|2..|..2|      |..1|...|.*.|   |...|*..|..2|
|...|1.1|...|   |2..|...|...|      |...|1.*|...|   |2..|...|...|
|..1|...|11.|   |...|..2|22.|      |..*|...|1*.|   |...|..2|**.|
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+

Regards kozo
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Re: July 22, 2016

Postby Ngisa » Fri Jul 22, 2016 8:16 am

Code: Select all
+------------+------------+--------------+
| 8  a45  259 | 1259 7  3  | 6    12  b24-5 |
| 49 7   6   | 1259 59 12 | c1245 8   3   |
| 1  3   25  | 4    68 68 | 25   7   9   |
+------------+------------+--------------+
| 7  2   8   | 6    4  5  | 9    3   1   |
| 5  1   4   | 3    2  9  | 8    6   7   |
| 6  9   3   | 8    1  7  | 24   5   24  |
+------------+------------+--------------+
| 3  6   19  | 25   58 4  | 7    19  28  |
| 2  8-5  7   | 19   69 16 | 3    4   e58  |
| 49 458 159 | 7    3  28 | d125  129 6   |
+------------+------------+--------------+

(5=4)r1c2 - r1c9 = (4-1)r2c7 = (1-5)r9c7 = (5)r8c9 => -5 r1c9, r8c2; stte

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Re: July 22, 2016

Postby SteveG48 » Fri Jul 22, 2016 2:45 pm

Kozo Kataya wrote:There are lots of solving methods. i d' like to present the different one.
Between single-digits 1 and 2, both are interrupted each other.
[if r8c4=1] cause [r1c8 must be 1 and/or 2] => contradiction.
Thus [r8c4<>1], instead [r8c6=1] then stte.
Code: Select all
   A: single-digit 1 and 2         B: if 1r8c4 then 12r1c8
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+
|...|1..|.1.|   |..2|...|.22|      |...|*..|.1.|   |..*|...|.2*|
|...|1.1|1..|   |...|2.2|...|      |...|*.1|*..|   |...|2.*|...|
|1..|...|...|   |..2|...|2..|      |1..|...|...|   |..2|...|*..|
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+
|...|...|..1|   |.2.|...|...|      |...|...|..1|   |.2.|...|...|
|.1.|...|...|   |...|.2.|...|      |.1.|..|...|   |...|.2.|...|
|...|.1.|...|   |...|...|2.2|      |...|.1.|...|   |...|...|2.*|
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+
|..1|...|.1.|   |...|2..|..2|      |..1|...|.*.|   |...|*..|..2|
|...|1.1|...|   |2..|...|...|      |...|1.*|...|   |2..|...|...|
|..1|...|11.|   |...|..2|22.|      |..*|...|1*.|   |...|..2|**.|
+---+---+---+   +---+---+---+      +---+---+---+   +---+---+---+

Regards kozo


Hi, Kozo. I know that your solution is correct. For example, 1r1c4 = (1-2)r1c8 = r9c8 - r9c6 = (2-1)r2c6 = 1r12c4 => -1 r8c4 ; stte . However, I don't understand how you're getting there. Your single digit chart doesn't show a 2 at r1c4, and I don't understand how you're using the charts.
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Re: July 22, 2016

Postby bat999 » Fri Jul 22, 2016 6:46 pm

...
Last edited by bat999 on Sun Jul 24, 2016 4:40 pm, edited 1 time in total.
8-)
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Re: July 22, 2016

Postby Sudtyro2 » Fri Jul 22, 2016 7:25 pm

Code: Select all
*-----------------------------------------------------------*
| 8    g45   *259   |g1259  7     3     | 6     12   *24-5  |
| 49    7     6     | 1259  59    12    | 1245  8     3     |
| 1     3    g25a   | 4     68    68    | 25b   7     9     |
|-------------------+-------------------+-------------------|
| 7     2     8     | 6     4     5     | 9     3     1     |
| 5     1     4     | 3     2     9     | 8     6     7     |
| 6     9     3     | 8     1     7     | 24c   5     24d   |
|-------------------+-------------------+-------------------|
| 3     6     19    | 25    58    4     | 7     19    28    |
| 2     58    7     | 19    69    16    | 3     4    *58    |
| 49   g458  *159   | 7     3     28    |*125   129   6     |
*-----------------------------------------------------------*

5-Link Oddagon (5):r1c39,r8c9,r9c37
Code: Select all
Four Guardians(g):
5r3c3 - 2r3c3 = r3c7 - r6c7 = (2-4)r6c9 = 4r1c9 - 5r1c9;
5r1c24                                          - 5r1c9;
5r9c2 - r9c7 = r8c9                             - 5r1c9; stte

Or, Kraken 5s 1-Fish c3\r1 + rfr39c3
Code: Select all
Remote Fins:
5r3c3 - 2r3c3 = r3c7 - r6c7 = (2-4)r6c9 = 4r1c9 - 5r1c9;
5r9c3 - r9c7 = r8c9                             - 5r1c9; stte

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Re: July 22, 2016

Postby Kozo Kataya » Sat Jul 23, 2016 2:46 am

SteveG48 wrote:1. However, I don't understand how you're getting there.
2. Your single digit chart doesn't show a 2 at r1c4, and
3. I don't understand how you're using the charts.

Thank you for your inquiry. Hereunder replies for 1 to 3.
1. Usually at first, check one single-digit only if there are any false candidates without consideration of other digits.
---Secondary, if necessary, check two single-digit's inter-ruption if there are any false.
2. By the first, ( like FISHes) found 2r1c4 and 2r2c7 are false ( means both cause contradiction).
3. Please refer the following charts. Just eliminate relevant candidates step by step.
---Both 1 and 2 at r1c8 are as single =>contradiction as shown charts B and C.
Code: Select all
A: digit 2         B: if r8c4 = 1     C: r2c6 is 1 single
r1c4,r2c7 eliminated                therefore r2c4 is 2 single

+---+---+---+      +---+---+---+      +---+---+---+
|..2|*..|.22|      |...|*..|.1.|      |...|...|.2*|
|...|2.2|*..|      |...|*.1|*..|      |...|2.1|...|
|..2|...|2..|      |1..|...|...|      |..2|...|*..|
+---+---+---+      +---+---+---+      +---+---+---+
|.2.|...|...|      |...|...|..1|      |.2.|...|...|
|...|.2.|...|      |.1.|...|...|      |...|.2.|...|
|...|...|2.2|      |...|.1.|...|      |...|...|2.*|
+---+---+---+      +---+---+---+      +---+---+---+
|...|2..|..2|      |..1|...|.*.|      |...|*..|..2|
|2..|...|...|      |...|1.*|...|      |2..|...|...|
|...|..2|22.|      |..*|...|1*.|      |...|..2|**.|
+---+---+---+      +---+---+---+      +---+---+---+
  [*] marked eliminated candidates

Regards kozo
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