The New Sudoku Players' Forum

by **ArkieTech** » Thu Jan 11, 2018 12:42 pm

Code: Select all: *-----------* |.6.|45.|2..| |35.|...|.9.| |...|9.7|...| |---+---+---| |.4.|...|..9| |5.2|...|1.8| |8..|...|.7.| |---+---+---| |...|1.9|...| |.8.|...|.62| |..6|.38|.1.| *-----------*

by **pjb** » Thu Jan 11, 2018 1:37 pm

Code: Select all: 79 6 79 | 4 5 3 | 2 8 1 3 5 8 | 6 12 12 | 47 9 47 12 12 4 | 9 8 7 | 36 5 36 ------------------------+----------------------+--------------------- 6 4 37 | 8 c17 b15 |a35 2 9 5 379 2 |d37 49 6 | 1 4-3 8 8 139 139 | 35 249 24 | 3456 7 3456 ------------------------+----------------------+--------------------- 247 237 5 | 1 6 9 | 8 34 347 19 8 139 | 57 47 45 | 39 6 2 479 79 6 | 2 3 8 | 4579 1 457

(3=5)r4c7 - (5=1)r4c6 - (1=7)r4c5 - (7=3)r5c4 => -3 r5c8; stte

Phil

by **rjamil** » Thu Jan 11, 2018 2:10 pm

Nice WXYZ-Wings move by Phil.

Code: Select all: +-------------+-----------+-----------+ | 79 6 79 | 4 5 3 | 2 8 1 | | 3 5 8 | 6 12 12 | 47 9 47 | | 12 12 4 | 9 8 7 | 6 5 3 | +-------------+-----------+-----------+ | 6 4 37 | 8 17 15 | 35 2 9 | | 5 379 2 |-37 49 6 | 1 c34 8 | | 8 139 19 |b35 249 24 |a45 7 6 | +-------------+-----------+-----------+ | 247 237 5 | 1 6 9 | 8 34 47 | | 19 8 139 | 57 47 45 | 39 6 2 | | 479 79 6 | 2 3 8 | 479 1 5 | +-------------+-----------+-----------+

Similarly, XY-Wings r6c47, r5c8 => -3 @ r5c4; stte

by **Cenoman** » Thu Jan 11, 2018 5:10 pm

Code: Select all: +--------------------+------------------+---------------------+ | 79 6 79 | 4 5 3 | 2 8 1 | | 3 5 8 | 6 12 12 | 47 9 47 | | 12 12 4 | 9 8 7 | 36* 5 36* | +--------------------+------------------+---------------------+ | 6 4 37 | 8 17 b15 | a35 2 9 | | 5 379 2 | B37 49 6 | 1 A34 8 | | 8 139 139 | 35 249 24 | 3456* 7 3456* | +--------------------+------------------+---------------------+ | 247 237 5 | 1 6 9 | 8 34 347 | | 19 8 139 | C57 D7-4 c45 | 39 6 2 | | 479 79 6 | 2 3 8 | 4579 1 457 | +--------------------+------------------+---------------------+

UR(36)r36c79 using externals (b6)
(3-5)r4c7 = r4c6 - (5=4)r8c6
(3)r5c8 - (3=7)r5c4 - r8c4 = (7)r8c5
=> -4 r8c5; stte

by **Leren** » Thu Jan 11, 2018 7:45 pm

Code: Select all: *--------------------------------------------* | 79 6 79 | 4 5 3 | 2 8 1 | | 3 5 8 | 6 12 12 | 47 9 47 | | 12 12 4 | 9 8 7 | 36 5 36 | |-------------+-------------+----------------| | 6 4 37 | 8 17 15B |a35A 2 9 | | 5 379 2 |d37D 49 6 | 1 4-5 8 | | 8 139 139 |c35C 249 24 |b3456 7 b3456 | |-------------+-------------+----------------| | 247 237 5 | 1 6 9 | 8 34 347 | | 19 8 139 | 57 47 45 | 39 6 2 | | 479 79 6 | 2 3 8 | 4579 1 457 | *--------------------------------------------* M Wing Type 7A : (3=5) r4c7 - r6c79 = (5-3) r6c4 = (3) r5c4 => - 5 r5c8; stte, or M Wing Type 7B : (3=5) r4c7 - r4c6 = (5-3) r6c4 = (3) r5c4 => - 5 r5c8; stte

Leren

by **Sudtyro2** » Thu Jan 11, 2018 8:23 pm

Code: Select all: +--------------+---------------+-----------------+ | 79 6 79 | 4 5 3 | 2 8 1 | | 3 5 8 | 6 12 b12 | 47 9 47 | | 12 12 4 | 9 8 7 | 36 5 36 | +--------------+---------------+-----------------+ | 6 4 37 | 8 17 b15 | c35 2 9 | | 5 379 2 | 37 49 6 | 1 34 8 | | 8 139 139 | 35 249 b24 | a3456 7 3456 | +--------------+---------------+-----------------+ | 247 237 5 | 1 6 9 | 8 34 347 | | 19 8 139 | 57 47 45 | 9-3 6 2 | | 479 79 6 | 2 3 8 | 4579 1 457 | +--------------+---------------+-----------------+

Simple coloring leads to Kraken cell (3456)r6c7.

Code: Select all: 4r6c7 - (4=125)r246c6 - (5=3)r4c7 - 3r8c7; 5r6c7 - (5=3)r4c7 - 3r8c7; 6r6c7 - (6=3)r3c7 - 3r8c7; 3r6c7 - 3r8c7; stte.

SteveC

by **Marty R.** » Thu Jan 11, 2018 9:55 pm

Code: Select all: ┌────────────────────┬────────────────────┬────────────────────┐ │ 79 6 79 │ 4 5 3 │ 2 8 1 │ │ │ │ │ │ 3 5 8 │ 6 12 12 │ 47 9 47 │ │ │ │ │ │ 12 12 4 │ 9 8 7 │ 36 5 36 │ ├────────────────────┼────────────────────┼────────────────────┤ │ 6 4 37 │ 8 17 15 │ 35 2 9 │ │ │ │ │ │ 5 379 2 │ 37 49 6 │ 1 34 8 │ │ │ │ │ │ 8 139 139 │ 35 249 24 │ 3456 7 3456 │ ├────────────────────┼────────────────────┼────────────────────┤ │ 247 237 5 │ 1 6 9 │ 8 34 347 │ │ │ │ │ │ 19 8 139 │ 57 47 45 │ 39 6 2 │ │ │ │ │ │ 479 79 6 │ 2 3 8 │ 4579 1 457 │ └────────────────────┴────────────────────┴────────────────────┘

M-Wing (37) (3=7)r4c3-r4c5=(7-3)r5c4=r6c4=> -3r6c23

by **SteveG48** » Thu Jan 11, 2018 11:52 pm

Code: Select all: *-----------------------------------------------------------* | 79 6 79 | 4 5 3 | 2 8 1 | | 3 5 8 | 6 12 12 | 47 9 47 | | 12 12 4 | 9 8 7 | 36 5 36 | *-------------------+-------------------+-------------------| | 6 4 7-3 | 8 17 15 | 35 2 9 | | 5 a379 2 | 37 49 6 | 1 34 8 | | 8 a139 a139 | 35 249 24 | 3456 7 3456 | *-------------------+-------------------+-------------------| | 247 237 5 | 1 6 9 | 8 34 347 | |b19 8 b139 | 57 47 45 | 39 6 2 | | 479 b79 6 | 2 3 8 | 4579 1 457 | *-----------------------------------------------------------*

(3=179)b4p589 - (7=139)b7p468 => -3 r4c3 ; stte

by **Ngisa** » Fri Jan 12, 2018 9:02 am

Code: Select all: +-----------------------+------------------------+------------------------+ | 79 6 79 | 4 5 3 | 2 8 1 | | 3 5 8 | 6 12 12 | 47 9 47 | | 12 12 4 | 9 8 7 | 36 5 36 | +-----------------------+------------------------+------------------------+ | 6 4 c137 | 8 17 15 | d35 2 9 | | 5 b379 2 | 37 479 6 | 1 34 8 | | 8 139 139 | 35 1249 1245 | 3456 7 3456 | +-----------------------+------------------------+------------------------+ | 247 237 5 | 1 6 9 | 8 34 347 | | 19 8 139 | 57 47 45 | e39 6 2 | | 479 a79 6 | 2 3 8 | 457-9 1 457 | +-----------------------+------------------------+------------------------+

(9=7)r9c2 - r5c2 = (7-3)r4c3 = r4c7 - (3=9)r8c7 => -9 r9c7; stte

Clement

January 11, 2018