The New Sudoku Players' Forum

by **ArkieTech** » Fri Aug 19, 2016 10:29 pm

Code: Select all: *-----------* |..4|...|.28| |.3.|6.8|..7| |..7|...|3.5| |---+---+---| |...|..4|.3.| |.2.|7.9|.5.| |.4.|2..|...| |---+---+---| |4.3|...|6..| |7..|1.3|.4.| |59.|...|7..| *-----------*

by **SteveG48** » Fri Aug 19, 2016 11:26 pm

Code: Select all: *--------------------------------------------------------------------* | 6 5 4 | 3 179 17 | 19 2 8 | | 2 3 d19 | 6 5 8 | 4 e19 7 | |c189 18 7 |b49 1249 12 | 3 6 5 | *----------------------+----------------------+----------------------| | 189 7 15689 | 58 168 4 | 2 3 169 | | 138 2 168 | 7 1368 9 | 18 5 4 | | 1389 4 15689 | 2 1368 156 | 189 7 169 | *----------------------+----------------------+----------------------| | 4 18 3 | 589 2789 257 | 6 f189 129 | | 7 6 8-2 | 1 289 3 | 5 4 g29 | | 5 9 a128 |a48 2468 26 | 7 a18 3 | *--------------------------------------------------------------------*

(2=148)r9c348 - (4=9)r3c4 - r3c1 = r2c3 - r2c8 = r7c8 - (9=2)r8c9 => -2 r8c3 ; stte

by **Leren** » Fri Aug 19, 2016 11:40 pm

Code: Select all: *--------------------------------------------------------------* | 6 5 4 | 3 179 17 | 19 2 8 | | 2 3 a19 | 6 5 8 | 4 b19 7 | | 189 18 7 | 49 1249 12 | 3 6 5 | |--------------------+--------------------+--------------------| | 189 7 15689 | 58 168 4 | 2 3 169 | | 138 2 168 | 7 1368 9 | 18 5 4 | | 1389 4 15689 | 2 1368 156 | 189 7 169 | |--------------------+--------------------+--------------------| | 4 18 3 | 589 2789 257 | 6 c189 129 | | 7 6 e28 | 1 289 3 | 5 4 d29 | | 5 9 f28-1 | 48 2468 26 | 7 18 3 | *--------------------------------------------------------------*

(1) r2c3 = (1-9) r2c8 = r7c8 - (9=2) r8c9 - r8c3 = (2) r9c3 => - 1 r9c3; stte

Leren

by **JC Van Hay** » Sat Aug 20, 2016 12:04 am

Code: Select all: +-------------------+----------------+------------------+ | 6 5 4 | 3 179 17 | 19 2 8 | | 2 3 19 | 6 5 8 | 4 19 7 | | 189 18 7 | 49 1249 12 | 3 6 5 | +-------------------+----------------+------------------+ | 189 7 15689 | 58 168 4 | 2 3 16-9 | | 138 2 168 | 7 1368 9 | 18 5 4 | | 1389 4 15689 | 2 1368 156 | 189 7 16-9 | +-------------------+----------------+------------------+ | 4 (18) 3 | 589 2789 257 | 6 18-9 (129) | | 7 6 (28) | 1 289 3 | 5 4 (29) | | 5 9 128 | 48 2468 26 | 7 18 3 | +-------------------+----------------+------------------+

[9r78c9==1r7c9-(1=8)r7c2-8r8c3==9r8c9]-9r7c8.r46c9; stte
or
[9r7c9=XYWing(128)r7c29.r8c3-(2=9)r8c9]-9r7c8.r46c9: stte

by **pjb** » Sat Aug 20, 2016 12:15 am

Code: Select all: 6 5 4 | 3 179 17 | 19 2 8 2 3 19 | 6 5 8 | 4 a19 7 189 18 7 | 49 1249 12 | 3 6 5 ------------------------+----------------------+--------------------- 189 7 15689 | 58 168 4 | 2 3 169 138 2 168 | 7 1368 9 | 18 5 4 1389 4 15689 | 2 1368 156 | 189 7 169 ------------------------+----------------------+--------------------- 4 18 3 | 589 2789 257 | 6 18-9 129 7 6 d28 | 1 289 3 | 5 4 e29 5 9 c128 | 48 2468 26 | 7 b18 3

(9=1)r2c8 - r9c8 = (1-2)r9c3 = r8c3 - (2=9)r8c9 => -9 r7c8; stte

Phil

by **bat999** » Sat Aug 20, 2016 10:13 am

Code: Select all: .--------------------.----------------.-----------------. | 6 5 4 | 3 179 17 | 19 2 8 | | 2 3 e19 | 6 5 8 | 4 d19 7 | | 189 8-1 7 | 49 1249 12 | 3 6 5 | :--------------------+----------------+-----------------: | 189 7 15689 | 58 168 4 | 2 3 169 | | 138 2 168 | 7 1368 9 | 18 5 4 | | 1389 4 15689 | 2 1368 156 | 189 7 169 | :--------------------+----------------+-----------------: | 4 a18 3 | 589 2789 257 | 6 c189 129 | | 7 6 b28 | 1 289 3 | 5 4 b29 | | 5 9 28-1 | 48 2468 26 | 7 18 3 | '--------------------'----------------'-----------------'

(1=8)r7c2 - (8=9)r8c39 - r7c8 = r2c8 -(9=1)r2c3 => -1 r3c2,r9c3; stte

by **Ngisa** » Sat Aug 20, 2016 12:08 pm

Code: Select all: +---------------+--------------+-------------+ | 6 5 4 | 3 179 17 | 19* 2 8 | | 2 3 19 | 6 5 8 | 4 19 7 | | 189 18 7 | 49 1249 12 | 3 6 5 | +---------------+--------------+-------------+ | 189 7 15689 | 58 168 4 | 2 3 169 | | 138 2 168 | 7 1368 9 | 18 5 4 | | 1389 4 15689 | 2 1368 156 | 189* 7 169 | +---------------+--------------+-------------+ | 4 1-8 3 | 589 2789 257 | 6 189 129 | | 7 6 28 | 1 289 3 | 5 4 29 | | 5 9 128 | 48 2468 26 | 7 18 3 | +---------------+--------------+-------------+

{8}r7c2
8r7c2 - (8=1)r3c2 - (1=9)r2c3 - r2c8 = (9)r1c7
8r7c2 - (8=2)r8c3 - (2=9)r8c9 - r46c9 =(9)r6c7 => - 8r7c2; stte

Clement

by **Sudtyro2** » Sat Aug 20, 2016 7:08 pm

Code: Select all: *--------------------------------------------------------------* | 6 5 4 | 3 *179 17 |*19 2 8 | | 2 3 19 | 6 5 8 | 4 *19 7 | | 189 18 7 | 49 1249# 12 | 3 6 5 | |--------------------+--------------------+--------------------| | 189 7 15689 | 58 168 4 | 2 3 169 | | 138 2 168 | 7 1368 9 | 18 5 4 | | 1389 4 15689 | 2 1368 156 | 189 7 169 | |--------------------+--------------------+--------------------| | 4 c18 3 | 589# *2789 257 | 6 *18-9f 129# | | 7 6 b28 | 1 a289# 3 | 5 4 29 | | 5 9 d128 | 48 2468 26 | 7 e18 3 | *--------------------------------------------------------------*

In 9s, 5-Link Oddagon(*) and four Guardians(#):

Code: Select all: (9-8)r8c5 = r8c3 - (8=1)r7c2 - r9c3 = (1-8)r9c8 = 8r7c8 - 9r7c8; 9r3c5 - r3c4 = r7c4 - 9r7c8; 9r7c49 - 9r7c8; stte

Or, the related Kraken 1x1 Fish c5\r7 + rfr138c5:

Code: Select all: (9-8)r8c5 = r8c3 - (8=1)r7c2 - r9c3 = (1-8)r9c8 = 8r7c8 - 9r7c8; 9r3c5 - r3c4 = r7c4 - 9r7c8; 9r1c5 - r1c7 = r2c8 - 9r7c8; stte

SteveC

August 20, 2016