The New Sudoku Players' Forum

by **ArkieTech** » Mon Jan 07, 2019 12:14 pm

Code: Select all: *-----------* |1..|.8.|.64| |.9.|...|.18| |.3.|.4.|2..| |---+---+---| |4..|72.|.3.| |...|...|...| |.7.|.94|..1| |---+---+---| |..7|.1.|.5.| |58.|...|.4.| |62.|.3.|..9| *-----------*

by **SpAce** » Mon Jan 07, 2019 1:13 pm

Code: Select all: .----------------.-------------------.---------------------. | 1 5 2 | sB39+ 8 B39+7 | taA7#39 6 4 | | 7 9 4 | 235 6 23 | u35 1 8 | | 8 3 6 | 159 4 B(1)79 | 2 tb79 tb57 | :----------------+-------------------+---------------------: | 4 uc(1)6 589 | 7 2 #(8)-1 | 589 3 uc56 | | 29 16 89 | 38+1 5 38+1 | 4 2789 67 | | 23 7 358 | 6 9 4 | 58 28 1 | :----------------+-------------------+---------------------: | 39 4 7 | 89+2 1 89+2 | 6 5 23 | | 5 8 39 | r2#9 7 6 | 1 4 23 | | 6 2 1 | 4 3 5 | 78 78 9 | '----------------'-------------------'---------------------' DP[389]r157c46+5 using externals (#8)r4c6 || (#3)r1c7 - (3=971)b2p139 A-B || (#9)r1c7 - (9=75)r3c89 - (5=61)r4c92 a-c || (#9)r8c4 - (9=3)r1c4 - (3=795)b3p189 - (5=61)r4c92 r-u => -1 r4c6; stte

...or the same elimination a bit more simply:

Code: Select all: .---------------.----------------.-----------------. | 1 5 2 | 39 8 379 | 379 6 4 | | 7 9 4 | 235 6 23 | 35 1 8 | | 8 3 6 | 159 4 b(1)79 | 2 b79 b57 | :---------------+----------------+-----------------: | 4 a(1)6 589 | 7 2 8-1 | 589 3 a56 | | 29 16 89 | 138 5 138 | 4 2789 67 | | 23 7 358 | 6 9 4 | 58 28 1 | :---------------+----------------+-----------------: | 39 4 7 | 289 1 289 | 6 5 23 | | 5 8 39 | 29 7 6 | 1 4 23 | | 6 2 1 | 4 3 5 | 78 78 9 | '---------------'----------------'-----------------'

(1=65)r4c29 - (5=791)r3c986 => -1 r4c6; stte

by **SteveG48** » Mon Jan 07, 2019 3:19 pm

Code: Select all: *-----------------------------------------------------------* | 1 5 2 | 39 8 379 | 379 6 4 | | 7 9 4 | 235 6 23 | 35 1 8 | | 8 3 6 | 159 4 d179 | 2 d79 5-7 | *-------------------+-------------------+-------------------| | 4 16 589 | 7 2 c18 | 589 3 56 | | 29 a16 89 |b138 5 b138 | 4 2789 a67 | | 23 7 358 | 6 9 4 | 58 28 1 | *-------------------+-------------------+-------------------| | 39 4 7 | 289 1 289 | 6 5 23 | | 5 8 39 | 29 7 6 | 1 4 23 | | 6 2 1 | 4 3 5 | 78 78 9 | *-----------------------------------------------------------*

(7=16)r5c29 - 1r5c46 = r4c6 - (1=79)r3c68 => -7 r3c9 ; stte

by **Ngisa** » Mon Jan 07, 2019 5:32 pm

Code: Select all: +------------------+------------------+--------------------+ | 1 5 2 |g39 8 379 |h379 6 4 | | 7 9 4 | 235 6 23 |i3-5 1 8 | | 8 3 6 | 159 4 179 | 2 79 57 | +------------------+------------------+--------------------+ | 4 16 589 | 7 2 18 | 589 3 56 | |c29 16 389 | 138 5 138 | 4 b2789 67 | | 23 7 358 | 6 9 4 |a58 a28 1 | +------------------+------------------+--------------------+ |d39 4 7 |e289 1 e289 | 6 5 23 | | 5 8 39 |f29 7 6 | 1 4 23 | | 6 2 1 | 4 3 5 | 78 78 9 | +------------------+------------------+--------------------+

(5=82)r6c78 - (2)r5c8 = (2-9)r5c1 = r7c1 - r7c46 = r8c4 - (9=3)r1c4 - r1c7 = (3)r2c7 => - 5r2c7; stte

Clement

by **Cenoman** » Mon Jan 07, 2019 10:49 pm

Code: Select all: +------------------+-------------------+--------------------+ | 1 5 2 | 39 8 379 | 379 6 4 | | 7 9 4 | 235 6 23 | 35 1 8 | | 8 3 6 | e19-5 4 179 | 2 79 a57 | +------------------+-------------------+--------------------+ | 4 16 589 | 7 2 18 | 589 3 56 | | 29 c16 89 | d138 5 138 | 4 2789 b67 | | 23 7 358 | 6 9 4 | 58 28 1 | +------------------+-------------------+--------------------+ | 39 4 7 | 289 1 289 | 6 5 23 | | 5 8 39 | 29 7 6 | 1 4 23 | | 6 2 1 | 4 3 5 | 78 78 9 | +------------------+-------------------+--------------------+

(5=7)r3c9 - (7=6)r5c9 - (6=1)r5c2 - r5c4 = (1)r3c4 => -5 r3c4; ste

January 7, 2019