The New Sudoku Players' Forum

by **ArkieTech** » Tue Jun 11, 2019 10:28 am

Code: Select all: *-----------* |...|3.7|..4| |8..|...|..6| |.5.|.4.|.9.| |---+---+---| |53.|...|9..| |7.8|...|3.1| |..1|...|.57| |---+---+---| |.6.|.7.|.2.| |4..|...|..5| |1..|6.9|...| *-----------*

by **Leren** » Tue Jun 11, 2019 10:38 am

Code: Select all: *--------------------------------------------------* | 29-6 1 29-6 | 3 f26 7 | 5 8 4 | | 8 47 347 | 1259 129 125 | 127 c13 6 | |a26 5 37 |e128 4 e128-6 |d127 9 b23 | |---------------+--------------------+-------------| | 5 3 246 | 7 1268 12468 | 9 46 28 | | 7 249 8 | 2459 269 2456 | 3 46 1 | | 269 249 1 | 2489 23689 23468 | 28 5 7 | |---------------+--------------------+-------------| | 3 6 5 | 148 7 148 | 18 2 9 | | 4 789 79 | 128 1238 1238 | 6 17 5 | | 1 278 27 | 6 5 9 | 4 37 38 | *--------------------------------------------------*

(6=2) r3c1 - (2=3) r3c9 - (3=1) r2c8 - r3c7 = (18-6) r3c46 = (6) r1c5 => - 6 r1c13, r3c6; stte

Leren

by **Cenoman** » Tue Jun 11, 2019 12:48 pm

Code: Select all: +--------------------+-------------------------+------------------+ | 269 1 269 | 3 26 7 | 5 8 4 | | 8 c47 c347 | 1259 129 125 | b127 13 6 | | 6-2 5 d37 | 128 4 1268 | a127* 9 da23* | +--------------------+-------------------------+------------------+ | 5 3 246 | 7 1268 12468 | 9 46 a28* | | 7 249 8 | 2459 269 2456 | 3 46 1 | | 269 249 1 | 2489 23689 23468 | a28* 5 7 | +--------------------+-------------------------+------------------+ | 3 6 5 | 148 7 148 | 18 2 9 | | 4 789 79 | 128 1238 1238 | 6 17 5 | | 1 278 27 | 6 5 9 | 4 37 38 | +--------------------+-------------------------+------------------+

Almost skyscraper
[(2)r3c7*=r6c7-r4c9=r3c9] = (2-7)r2c7 = r2c23 - (73=2)r3c39 => -2 r3c1; ste

by **Ngisa** » Tue Jun 11, 2019 1:17 pm

Code: Select all: +--------------------+-------------------------+-----------------+ | 269 1 d269 | 3 e26 7 | 5 8 4 | | 8 a47 b347 |f1259 f129 f125 |g127 13 6 | | 26 5 3-7 | 128 4 1268 |h127 9 23 | +--------------------+-------------------------+-----------------+ | 5 3 c246 | 7 1268 12468 | 9 46 28 | | 7 249 8 | 2459 269 2456 | 3 46 1 | | 269 249 1 | 2489 23689 23468 | 28 5 7 | +--------------------+-------------------------+-----------------+ | 3 6 5 | 148 7 148 | 18 2 9 | | 4 789 79 | 128 1238 1238 | 6 17 5 | | 1 278 27 | 6 5 9 | 4 37 38 | +--------------------+-------------------------+-----------------+

(7=4)r2c2 - r2c3 = (4-6)r4c3 = r1c3 - (6=2)r1c5 - r2c456 = (2-7)r2c7 = (7)r3c7 => - 7r3c3; stte

Clement

by **SteveG48** » Tue Jun 11, 2019 1:38 pm

Code: Select all: *--------------------------------------------------------------------* | 269 1 269 | 3 26 7 | 5 8 4 | | 8 d47 47-3 | 1259 129 125 | 127 a13 6 | |b26 5 ad37 | 128 4 1268 |b127 9 2-3 | *----------------------+----------------------+----------------------| | 5 3 246 | 7 1268 12468 | 9 46 28 | | 7 c249 8 | 2459 269 2456 | 3 46 1 | |c269 c249 1 | 2489 23689 23468 | 28 5 7 | *----------------------+----------------------+----------------------| | 3 6 5 | 148 7 148 | 18 2 9 | | 4 789 79 | 128 1238 1238 | 6 17 5 | | 1 278 27 | 6 5 9 | 4 37 38 | *--------------------------------------------------------------------*

(3=17)r2c8,r3c3 - (1|7=26)r3c17 - (6=249)b4p578 - (4=37)b1p59 => -3 r2c3,r3c9 ; stte

by **eleven** » Tue Jun 11, 2019 3:51 pm

Shortcut of Cenoman's:

Code: Select all: *-----------------------------------------------------------------* | 269 1 269 | 3 26 7 | 5 8 4 | | 8 47 347 | 1259 129 125 | 17-2 b13 6 | | 6-2 5 a37 | 18-2 4 168-2 | a127 9 ba23 | |--------------------+-------------------------+------------------| | 5 3 246 | 7 1268 12468 | 9 46 28 | | 7 249 8 | 2459 269 2456 | 3 46 1 | | 269 249 1 | 2489 23689 23468 | 28 5 7 | |--------------------+-------------------------+------------------| | 3 6 5 | 148 7 148 | 18 2 9 | | 4 789 79 | 128 1238 1238 | 6 17 5 | | 1 278 27 | 6 5 9 | 4 37 38 | *-----------------------------------------------------------------*

(2=1)r3c379 - (1=2)b3p59 => -2r3c146, r2c7; stte

(or: 4 cells, 4 digits 1237, only 3 can be twice in r2c8&r3c3, then 2r3c9 => 2r3c89)

by **SpAce** » Tue Jun 11, 2019 7:31 pm

Code: Select all: .---------------.--------------------.--------------------. | 269 1 269 | 3 26 7 | 5 8 4 | | 8 47 347 | 1259 129 125 | a1[7]-2 13 6 | | 26 5 b37 | 128 4 1268 | b127 9 b(2)3 | :---------------+--------------------+--------------------: | 5 3 246 | 7 1268 12468 | 9 46 28 | | 7 249 8 | 2459 269 2456 | 3 46 1 | | 269 249 1 | 2489 23689 23468 | 28 5 7 | :---------------+--------------------+--------------------: | 3 6 5 | 148 7 148 | 18 2 9 | | 4 789 79 | 128 1238 1238 | 6 17 5 | | 1 278 27 | 6 5 9 | 4 37 38 | '---------------'--------------------'--------------------'

H3-Wing:

(7)r2c7 = (732)r3c739 => -2 r2c7; btte

or:

Code: Select all: .------------------.----------------------.-----------------. | 269 1 269 | 3 26 7 | 5 8 4 | | 8 47 347 | 1259 129 125 | c127 13 6 | | a[6]-2 5 37 | b128 4 b1268 | c127 9 c(2)3 | :------------------+----------------------+-----------------: | 5 3 246 | 7 1268 12468 | 9 46 28 | | 7 249 8 | 2459 269 2456 | 3 46 1 | | 269 249 1 | 2489 23689 23468 | 28 5 7 | :------------------+----------------------+-----------------: | 3 6 5 | 148 7 148 | 18 2 9 | | 4 789 79 | 128 1238 1238 | 6 17 5 | | 1 278 27 | 6 5 9 | 4 37 38 | '------------------'----------------------'-----------------'

(6)r3c1 = (68-1)r3c64 = (172)b3p749 => -2 r3c1; stte

Edits: added pattern name, added stte solution.

by **Cenoman** » Tue Jun 11, 2019 7:53 pm

eleven wrote:(2=1)r3c379 - (1=2)b3p59 => -2r3c146, r2c7; stte

Nice !
I am disappointed to have missed it ...

June 11, 2019