The New Sudoku Players' Forum

[eleven]

Code: Select all

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

[Leren]

Code: Select all

*-----------------------------------------------------------------------*
| 13     36     168     | 8-47  *4568   9       |*45678 *5678   2       |
| 2      4      7       | 3     *568    1       |*568   *568    9       |
| 5      9      68      | 478    468    2       | 1      3      468-7   |
|-----------------------+-----------------------+-----------------------|
| 6      1      3       | 9      7      48      | 248    28     5       |
| 9      278    24      | 5      48     6       | 3      1      478     |
| 47     78     5       | 1      2      3       | 4678   9      4678    |
|-----------------------+-----------------------+-----------------------|
| 37     356    26      | 48     1      48      | 9      2567   367     |
| 8      27     9       | 6      3      5       | 27     4      1       |
| 14     356    14      | 2      9      7       |*568   *568    368     |
*-----------------------------------------------------------------------*

Two 8 Cell DPs (5678+4) and (4568+7) using the same cells r23c578+ r9c78: Either r1c5 or r1c7 = 4 and either r1c7 or r1c8 = 7 => -47 r1c4, - 7 r3c9; stte

Leren

[eleven]

Very nice !
A bit different from mine.

[Luke]

Code: Select all

*-----------------------------------------------------------------------*
| 13     36     168     | 8-47  *4568   9       |*45678 *5678   2       |
| 2      4      7       | 3     *568    1       |*568   *568    9       |
| 5      9      68      | 478    468    2       | 1      3      468-7   |
|-----------------------+-----------------------+-----------------------|
| 6      1      3       | 9      7      48      | 248    28     5       |
| 9      278    24      | 5      48     6       | 3      1      478     |
| 47     78     5       | 1      2      3       | 4678   9      4678    |
|-----------------------+-----------------------+-----------------------|
| 37     356    26      | 48     1      48      | 9      2567   367     |
| 8      27     9       | 6      3      5       | 27     4      1       |
| 14     356    14      | 2      9      7       |*568   *568    368     |
*-----------------------------------------------------------------------*

Two 8 Cell DPs (5678+4) and (4568+7) using the same cells r23c578+ r9c78: Either r1c5 or r1c7 = 4 and either r1c7 or r1c8 = 7 => -47 r1c4, - 7 r3c9; stte

Very clever, Leren. I'm getting around to all these Muggys as time permits, and on this one I tried to work something with (4)=(7) and didn't get a very useful elim. At least I recognized the pattern, but no cigar for me.

eleven, you mentioned your approach was a "bit different." Let us know how so, please.

[eleven]

eleven, you mentioned your approach was a "bit different." Let us know how so, please.

Good question, Luke, this was a (lucky) mistake.
Either i copied the wrong puzzle (i checked manually about 35 candidate puzzles, found with a quickly written search, which left non basics grids containing a 3 digit MUG with max. 2 extra candidates) or for some reason i thought, that a 7 in r3c4 would solve it (as i did, when i went through the scrambled puzzles again).
Sorry, when i wasted your time to find, what is not there.

[Added:] Btw i also had tried to find examples for the T6 UA, but nothing of interest after hours of search (also not, when combined with a 2 digit UA). On the other hand the big MUG puzzles dont't seem to be very rare.