The New Sudoku Players' Forum

by **ArkieTech** » Wed Jan 04, 2017 12:29 am

Code: Select all: *-----------* |..5|2..|6.7| |8..|.6.|...| |...|7..|..8| |---+---+---| |24.|6..|.31| |...|..1|...| |1..|.9.|8..| |---+---+---| |...|...|...| |76.|8..|2..| |...|..5|3.4| *-----------*

by **SteveG48** » Wed Jan 04, 2017 12:51 am

Code: Select all: *-----------------------------------------------------------* | 34 39 5 | 2 1 8 | 6 49 7 | | 8 27 27 | 9 6 4 | 1 5 3 | | 46 19 146 | 7 5 3 | 49 2 8 | *-------------------+-------------------+-------------------| | 2 4 9 | 6 8 7 | 5 3 1 | | 356 3578 3678 | 345 a34 1 | 9-4 479 2 | | 1 357 c37 | 35-4 9 2 | 8 d47 6 | *-------------------+-------------------+-------------------| | 345 135 134 | 34 2 6 | 7 8 9 | | 7 6 c34 | 8 b34 9 | 2 1 5 | | 9 28 28 | 1 7 5 | 3 6 4 | *-----------------------------------------------------------*

4r5c5 = r8c5 - (4=37)r68c3 - (7=4)r6c8 => -4 r5c7,r6c4 ; stte

by **Marty R.** » Wed Jan 04, 2017 2:19 am

Code: Select all: +---------------+----------+----------+ | 34 39 5 | 2 1 8 | 6 49 7 | | 8 27 27 | 9 6 4 | 1 5 3 | | 46 19 146 | 7 5 3 | 49 2 8 | +---------------+----------+----------+ | 2 4 9 | 6 8 7 | 5 3 1 | | 356 3578 3678 | 345 34 1 | 49 479 2 | | 1 357 37 | 345 9 2 | 8 47 6 | +---------------+----------+----------+ | 345 135 134 | 34 2 6 | 7 8 9 | | 7 6 34 | 8 34 9 | 2 1 5 | | 9 28 28 | 1 7 5 | 3 6 4 | +---------------+----------+----------+

Play this puzzle online at the Daily Sudoku site

DP (27-78-28)r259c23 externals => 7r5c8

by **Cenoman** » Wed Jan 04, 2017 2:37 pm

Code: Select all: +---------------------+-----------------+-----------------+ | 34 39 5 | 2 1 8 | 6 49 7 | | 8 a27 a27 | 9 6 4 | 1 5 3 | | 46 19 146 | 7 5 3 | 49 2 8 | +---------------------+-----------------+-----------------+ | 2 4 9 | 6 8 7 | 5 3 1 | | 356 a3578 a3678 | 345 34 1 | 49 b49+7 2 | | 1 357 37 | 345 9 2 | 8 47 6 | +---------------------+-----------------+-----------------+ | 345 135 134 | 34 2 6 | 7 8 9 | | 7 6 34 | 8 34 9 | 2 1 5 | | 9 a28 a28 | 1 7 5 | 3 6 4 | +---------------------+-----------------+-----------------+

DP(278)r259c23 = (7)r5c8 => +7 r5c8; stte

Do you call this deadly pattern a UR ? I do, but I have doubts...)
Cenoman.

by **SteveG48** » Wed Jan 04, 2017 3:18 pm

Cenoman wrote:DP(278)r259c23 = (7)r5c8 => +7 r5c8; stte

Do you call this deadly pattern a UR ? I do, but I have doubts...)

It's a DP, but I wouldn't call it a UR.

by **Sudtyro2** » Wed Jan 04, 2017 7:51 pm

Code: Select all: *-----------------------------------------------------------* | 34 b39 5 | 2 1 8 | 6 b49 7 | | 8 27 27 | 9 6 4 | 1 5 3 | | 46 19 146 | 7 5 3 | 49 2 8 | *-------------------+-------------------+-------------------| | 2 4 9 | 6 8 7 | 5 3 1 | | 356 3578 3678 | 345 34 1 | 49 479 2 | | 1 a357 c37 |A345 9 2 | 8 c47 6 | *-------------------+-------------------+-------------------| | 345 135 134 |B34 2 6 | 7 8 9 | | 7 6 4-3 | 8 C34 9 | 2 1 5 | | 9 28 28 | 1 7 5 | 3 6 4 | *-----------------------------------------------------------*

Kraken (3)r6.

Code: Select all: 3r6c2 - (3=94)r1c28 - (4=73)r6c38 - 3r8c3; 3r6c3 - 3r8c3; 3r6c4 - r7c4 = r8c5 - 3r8c3; stte

Note contradiction in first chain at 3r6c23. I think that's OK.

SteveC

by **Marty R.** » Wed Jan 04, 2017 9:03 pm

Do you call this deadly pattern a UR ? I do, but I have doubts...)

Just one man's opinion. I limit my use of the UR terminology to four-cell patterns that are defined types of UR such as type 1, 2, 3 and 4.

January 4, 2017