The New Sudoku Players' Forum

by **Leren** » Tue May 22, 2018 10:00 pm

Code: Select all: *-----------* |...|...|85.| |...|.6.|...| |..2|...|...| |---+---+---| |84.|...|..6| |.5.|..4|...| |...|7..|..1| |---+---+---| |..6|.3.|..7| |..1|...|...| |...|..5|.4.| *-----------*

by **morl** » Tue May 22, 2018 10:30 pm

Code: Select all: 6 1 4 | 239 29 7 | 8 5 39-2 379 39 5 | 8 6 b239 |a279 1 4 379 8 2 | 5 4 1 | 79 6 39 ------------------------+----------------------+--------------------- 8 4 79 | 239 1 239 | 5 279 6 1 5 379 | 6 29 4 | 239 2379 8 2 6 39 | 7 5 8 | 4 39 1 ------------------------+----------------------+--------------------- 5 d29 6 | 4 3 c29 | 1 8 7 4 7 1 | 29 8 6 | 39-2 239 5 39 e239 8 | 1 7 5 | 6 4 f29

(2)r2c7 = r2c6 - r7c6 = r7c2 - r9c2 = r9c9 => -2r1c9, r8c7 ste

by **ArkieTech** » Tue May 22, 2018 11:41 pm

Code: Select all: *-----------------------------------------------------------* | 6 1 4 |*239 *29 7 | 8 5 *239 | | 379 39 5 | 8 6 39-2 | 279 1 4 | | 379 8 2 | 5 4 1 | 79 6 39 | *-------------------+-------------------+-------------------| | 8 4 79 | 239 1 239 | 5 279 6 | | 1 5 379 | 6 29 4 | 239 2379 8 | | 2 6 39 | 7 5 8 | 4 39 1 | *-------------------+-------------------+-------------------| | 5 *29 6 | 4 3 *29 | 1 8 7 | | 4 7 1 | 29 8 6 | 239 239 5 | | 39 *239 8 | 1 7 5 | 6 4 *29 | *-----------------------------------------------------------* [sf:2r179c269b2p12]-2r2c6; ste

by **SteveG48** » Wed May 23, 2018 12:16 am

Code: Select all: *-----------------------------------------------------------* | 6 1 4 |c239 c29 7 | 8 5 d239 | | 379 a39 5 | 8 6 b239 | 279 1 4 | | 379 8 2 | 5 4 1 | 79 6 39 | *-------------------+-------------------+-------------------| | 8 4 79 | 239 1 239 | 5 279 6 | | 1 5 379 | 6 29 4 | 239 2379 8 | | 2 6 39 | 7 5 8 | 4 39 1 | *-------------------+-------------------+-------------------| | 5 2-9 6 | 4 3 a29 | 1 8 7 | | 4 7 1 | 29 8 6 | 239 239 5 | |f39 f239 8 | 1 7 5 | 6 4 e29 | *-----------------------------------------------------------*

(9=23)r2c2,r7c6 - (2|3=9)r2c6 - r1c45 = r1c9 - r9c9 = r9c12 => -9 r7c2 ; stte

by **Cenoman** » Wed May 23, 2018 8:13 am

Code: Select all: +--------------------+-------------------+---------------------+ | 6 1 4 | 239 29 7 | 8 5 39-2 | | 379* 39 5 | 8 6 239 | a279* 1 4 | | 379* 8 2 | 5 4 1 | 79* 6 39 | +--------------------+-------------------+---------------------+ | 8 4 79 | 239 1 239 | 5 279 6 | | 1 5 379 | 6 29 4 | 239 2379 8 | | 2 6 39 | 7 5 8 | 4 39 1 | +--------------------+-------------------+---------------------+ | 5 29 6 | 4 3 29 | 1 8 7 | | 4 7 1 | 29 8 6 | 239 239 5 | | b39 239 8 | 1 7 5 | 6 4 c29 | +--------------------+-------------------+---------------------+

UR(79)r23c17 using mixed internal-external
(2)r2c7==(9)r9c1 - (9=2)r9c9 => -2 r1c9; ste

by **Leren** » Wed May 23, 2018 9:19 am

Code: Select all: *-----------------------------------------------* | 6 1 4 | 239 29 7 | 8 5 39-2 | |*79+3b 39 5 | 8 6 239 |*79+2a 1 4 | |*79+3b 8 2 | 5 4 1 |*79 6 39 | |----------------+------------+-----------------| | 8 4 79 | 239 1 239 | 5 279 6 | | 1 5 379 | 6 29 4 | 239 2379 8 | | 2 6 39 | 7 5 8 | 4 39 1 | |----------------+------------+-----------------| | 5 29 6 | 4 3 29 | 1 8 7 | | 4 7 1 | 29 8 6 | 39-2 239 5 | | 39c 239d 8 | 1 7 5 | 6 4 29e | *-----------------------------------------------*

Using the same UR : (2) r2c7 = UR = 3 r23c1 - r9c1 = (3-2) r9c2 = (2) r9c9 => - 2 r1c9, r8c7; stte

Link to the original puzzle is here. Leren

by **pjb** » Wed May 23, 2018 11:18 am

Code: Select all: 6 1 4 | 239 29 7 | 8 5 d239 379 39 5 | 8 6 b239 |c279 1 4 379 8 2 | 5 4 1 | 79 6 39 ------------------------+----------------------+--------------------- 8 4 79 | 239 1 239 | 5 279 6 1 5 379 | 6 29 4 | 239 2379 8 2 6 39 | 7 5 8 | 4 39 1 ------------------------+----------------------+--------------------- 5 29 6 | 4 3 a29 | 1 8 7 4 7 1 | 2-9 8 6 |f239 f239 5 39 239 8 | 1 7 5 | 6 4 e29

Slightly different:
(9=2)r7c6 - r2c6 = r2c7 - r1c9 = r9c9 - (2=39)r8c78 => -9 r8c4; stte

Phil

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