The New Sudoku Players' Forum

[ArkieTech]

Code: Select all

 *-----------*
 |6..|.9.|..8|
 |..8|7.1|3..|
 |.2.|...|.5.|
 |---+---+---|
 |4..|...|..6|
 |.9.|5.8|.2.|
 |...|...|...|
 |---+---+---|
 |..1|.2.|7..|
 |.5.|...|.9.|
 |...|.7.|...|
 *-----------*


Play/Print this puzzle online

[pjb]

Code: Select all

 6       7       5      | 23     9      23     | 4      1      8     
 9       4       8      | 7      5      1      | 3      6      2     
 1       2       3      | 68     48     46     | 9      5      7     
------------------------+----------------------+---------------------
 4       8       2      |b139    13    a379    | 5      37     6     
 3       9       7      | 5      6      8      | 1      2      4     
 5       1       6      | 234    34     2347   | 8      37     9     
------------------------+----------------------+---------------------
 8       6       1      | 39     2     e35-9   | 7      4      35     
 7       5       4      | 68     138    36     | 2      9      13     
 2       3       9      |c14     7     d45     | 6      8      15     


(9)r4c6 = (9-1)r4c4 = (1-4)r9c4 = (4-5)r9c6 = r7c6 => -9 r7c6; stte

Phil

[SteveG48]

Code: Select all

 *------------------------------------------------------------*
 | 6     7     5     | 23    9      2-3   | 4     1     8     |
 | 9     4     8     | 7     5      1     | 3     6     2     |
 | 1     2     3     | 68    48   ad46    | 9     5     7     |
 *-------------------+--------------------+-------------------|
 | 4     8     2     | 139  c13    c79-3  | 5    c37    6     |
 | 3     9     7     | 5     6      8     | 1     2     4     |
 | 5     1     6     | 234   34     247-3 | 8     37    9     |
 *-------------------+--------------------+-------------------|
 | 8     6     1     |b9-3   2    bd359   | 7     4     35    |
 | 7     5     4     |b68   b18-3 ad36    | 2     9     13    |
 | 2     3     9     | 14    7    bd45    | 6     8     15    |
 *------------------------------------------------------------*


(3=46)r38c6 - (4|6=13589)b8p13459 - (1=379)r4c568 - (9=3456)r3789c6 => -3 r146c6,b8p15 ; stte


Typo corrected. Thanks, SpAce.

[Cenoman]

Code: Select all

 +-----------------+---------------------+-----------------+
 |  6    7    5    |  23    9    B23     |  4    1    8    |
 |  9    4    8    |  7     5     1      |  3    6    2    |
 |  1    2    3    |  68    48    46     |  9    5    7    |
 +-----------------+---------------------+-----------------+
 |  4    8    2    | a19+3  13  Ad79+3   |  5    37   6    |
 |  3    9    7    |  5     6     8      |  1    2    4    |
 |  5    1    6    | a24+3  34  ze7+34-2 |  8    37   9    |
 +-----------------+---------------------+-----------------+
 |  8    6    1    | b39    2   Ac59+3   |  7    4    35   |
 |  7    5    4    |  68   a18+3  36     |  2    9    13   |
 |  2    3    9    |  14    7     45     |  6    8    15   |
 +-----------------+---------------------+-----------------+

BUG+6
(3)r46c4|r8c5 - (3=9)r7c4 - r7c6 = (9-7)r4c6 = (7)r6c6 (a,b,c,d,e)
(3)r47c6 - (3=2)r1c6 (A,B)
(34)r6c6 (z)
=> -2 r6c6; ste

[Ngisa]

Code: Select all

+---------------+-----------------------+-----------------+
| 6     7     5 | 23       9       23   | 4     1      8  |
| 9     4     8 | 7        5       1    | 3     6      2  |
| 1     2     3 |b468     e48     a46   | 9     5      7  |
+---------------+-----------------------+-----------------+
| 4     8     2 |f139     f13      379  | 5     37     6  |
| 3     9     7 | 5        6       8    | 1     2      4  |
| 5     1     6 | 234     f34      2347 | 8     37     9  |
+---------------+-----------------------+-----------------+
| 8     6     1 |g39       2      h359  | 7     4      35 |
| 7     5     4 |c1368    d138     36   | 2     9      13 |
| 2     3     9 | 14       7      i5-4  | 6     8      15 |
+---------------+-----------------------+-----------------+


(4=6)r3c6 - r3c4 = (6-8)r8c4 = r8c5 - (8=4)r3c5 - (4=139)r46c5|r4c4 - (9)r7c4 = (9-5)r7c6 = (5)r9c6 => - 4r9c6; stte

Clement

[SpAce]

Code: Select all

.---------.------------------------.-----------.
| 6  7  5 |  23      9       23    | 4  1   8  |
| 9  4  8 |  7       5       1     | 3  6   2  |
| 1  2  3 |  68      48      46    | 9  5   7  |
:---------+------------------------+-----------:
| 4  8  2 |Cc19#3  Dc13      79#3  | 5  37  6  |
| 3  9  7 |  5       6       8     | 1  2   4  |
| 5  1  6 |  24#3    4-3    A27#34 | 8  37  9  |
:---------+------------------------+-----------:
| 8  6  1 |  39      2      a59#3  | 7  4   35 |
| 7  5  4 |  68      18#3    36    | 2  9   13 |
| 2  3  9 |Cb14      7     Bb45    | 6  8   15 |
'---------'------------------------'-----------'

BUG+7

(3)b5p1379,r8c5
||
(3-5)r7c6 = (54-1)r9c46 = (13)r4c45
||
(4)r6c6 - r9c6 = (41)r94c4 - (1=3)r4c5

=> -3 r6c5; stte

[Cenoman]

BUG+7
.../...

Hi Space,
No comment on your variant chains...
FWIW, I have been informed, in my first months in this sub-forum, that number "n" in BUG+n is the non-bivalue cell count, rather than the guardian count.
So, when I wrote "BUG+6", I was not in a senior moment...
Historical legacy, was I told...

[SpAce]

FWIW, I have been informed, in my first months in this sub-forum, that number "n" in BUG+n is the non-bivalue cell count, rather than the guardian count.
So, when I wrote "BUG+6", I was not in a senior moment...
Historical legacy, was I told...

Thank you for that piece of information, Cenoman! I didn't think you made a mistake in the first place. I saw there were two logical possibilities to choose that +value, and guessed from your post that +6 was probably the conventional one. However, +7 made more sense to me so I chose to rebel I'm sure both can be understood, but I can of course change mine if it's considered bad form.

[SpAce]

(3=46)r38c6 - (4|6=13589)b8p13459 - (1=379)r4c568 - (9=3456)r3789c6 => -3 r146c6,b8p15 ; stte

Hi Steve! That's a very nice ALS chain. I need practice with ALSs so I used it to experiment a little. Specifically, I tried to convert it into an equivalent AHS chain:

(3)r8c6 = (32579-4)r14679c6 = (41-9)r94c4 = (972-3)r461c6 = (3)r78c6

Did I succeed?

Edit: typo corrected, thanks to Steve.

[SteveG48]

(3=46)r38c6 - (4|6=13589)b8p13459 - (1=379)r4c568 - (9=3456)r3789c6 => -3 r146c6,b8p15 ; stte

Hi Steve! That's a very nice ALS chain. I need practice with ALSs so I used it to experiment a little. Specifically, I tried to convert it into an equivalent AHS chain:

(3)r8c8 = (32579-4)r14679c6 = (41-9)r94c4 = (972-3)r461c6 = (3)r78c6

Did I succeed?

I like the hidden sets, but (3)r8c8 makes no sense. r8c8 is a given.

[SpAce]

I like the hidden sets, but (3)r8c8 makes no sense. r8c8 is a given.

I must have meant r8c6. Corrected, thanks for spotting! (Btw, your chain had a little typo too -- note the blue 3 in my quote.)

[SteveG48]

I like the hidden sets, but (3)r8c8 makes no sense. r8c8 is a given.

I must have meant r8c6. Corrected, thanks for spotting! (Btw, your chain had a little typo too -- note the blue 3 in my quote.)

Ah! I see it now. I figured it must be a typo, but I'm pretty bad at hidden sets. I couldn't figure out what you meant it to be.