The New Sudoku Players' Forum

by **ArkieTech** » Tue Mar 10, 2015 11:50 pm

Code: Select all: *-----------* |..2|.4.|.76| |.4.|...|5..| |...|3.2|.1.| |---+---+---| |...|..3|.54| |7.5|...|9.3| |63.|9..|...| |---+---+---| |.2.|6.8|...| |..3|...|.2.| |56.|.1.|3..| *-----------*

by **SteveG48** » Wed Mar 11, 2015 12:29 am

Code: Select all: *--------------------------------------------------* | 3 5-1 2 |g15 4 9 | 8 7 6 | |a19 4 a179 | 7-1 8 6 | 5 3 2 | | 8 57 6 | 3 57 2 | 4 1 9 | *----------------+----------------+----------------| | 2 9 d18 | 78 6 3 | 17 5 4 | | 7 e18 5 |g48 2 14 | 9 6 3 | | 6 3 4 | 9 57 157 | 2 8 17 | *----------------+----------------+----------------| |b149 2 c179 | 6 3 8 | 17 49 5 | |b14 f178 3 |g457 9 457 | 6 2 178 | | 5 6 789 | 2 1 47 | 3 49 78 | *--------------------------------------------------*

(1)r2c13 = (1*)r78c1 - r7c3 = r4c3 - (1=8**)r5c2 - (8*1=7)r7c2 - (7**8=451)r157 => -1 r1c2,r2c4 ; stte

by **Marty R.** » Wed Mar 11, 2015 12:36 am

Code: Select all: *--------------------------------------------------* | 3 5-1 2 |g15 4 9 | 8 7 6 | |a19 4 179 | 7-1 8 6 | 5 3 2 | | 8 57 6 | 3 57 2 | 4 1 9 | *----------------+----------------+----------------| | 2 9 d18 | 78 6 3 | 17 5 4 | | 7 e18 5 |g48 2 14 | 9 6 3 | | 6 3 4 | 9 57 157 | 2 8 17 | *----------------+----------------+----------------| |b149 2 c179 | 6 3 8 | 17 49 5 | |b14 f178 3 |g457 9 457 | 6 2 178 | | 5 6 789 | 2 1 47 | 3 49 78 | *--------------------------------------------------*

I lost my online grid, but it's the same as Steve's, so I copied his.

XY-Chain: (1=4)r5c6-(4=8)r5c4-(8=7)r4c4-(7=1)r2c4-r1c4=1r1c2=>r5c2<>1

by **pjb** » Wed Mar 11, 2015 1:43 am

Code: Select all: 3 15 2 | 15 4 9 | 8 7 6 19 4 179 | 17 8 6 | 5 3 2 8 57 6 | 3 57 2 | 4 1 9 ------------------------+----------------------+--------------------- 2 9 18 | 78 6 3 | 17 5 4 7 18 5 | 48 2 14 | 9 6 3 6 3 4 | 9 57 157 | 2 8 17 ------------------------+----------------------+--------------------- 149 2 a179 | 6 3 8 |b17 49 5 14 d18-7 3 | 457 9 457 | 6 2 c178 5 6 789 | 2 1 47 | 3 49 78

(7)r7c3 = (7-1)r7c7 = (1-8)r8c9 = r8c2 => -7 r8c2; stte

Phil

by **gurth** » Wed Mar 11, 2015 12:33 pm

by **Ngisa** » Wed Mar 11, 2015 4:12 pm

Code: Select all: +-------------+------------+-----------+ | 3 b15 2 | c15 4 9 | 8 7 6 | | 19 4 179 | c17 8 6 | 5 3 2 | | 8 57 6 | 3 57 2 | 4 1 9 | +-------------+------------+-----------+ | 2 9 1-8 | c78 6 3 | 17 5 4 | | 7 a18 5 | 48 2 14 | 9 6 3 | | 6 3 4 | 9 57 157 | 2 8 17 | +-------------+------------+-----------+ | 149 2 179 | 6 3 8 | 17 49 5 | | 14 178 3 | 457 9 457 | 6 2 178 | | 5 6 789 | 2 1 47 | 3 49 78 | +-------------+------------+-----------+

(8=1)r5c2-(1=5)r1c2-(5=8)r124c4 => -8r4c3; stte

by **Leren** » Sat Mar 14, 2015 3:42 am

Code: Select all: *--------------------------------------------------------------* | 3 e15 2 |d15 4 9 | 8 7 6 | | 19 4 79-1 |c17 8 6 | 5 3 2 | | 8 57 6 | 3 57 2 | 4 1 9 | |--------------------+--------------------+--------------------| | 2 9 a18 |b78 6 3 | 17 5 4 | | 7 8-1 5 | 48 2 14 | 9 6 3 | | 6 3 4 | 9 57 157 | 2 8 17 | |--------------------+--------------------+--------------------| | 149 2 179 | 6 3 8 | 17 49 5 | | 14 178 3 | 457 9 457 | 6 2 178 | | 5 6 789 | 2 1 47 | 3 49 78 | *--------------------------------------------------------------*

XY Wing with transport : (1=8) r4c3 - (8=7) r4c4 - (7=1) r2c4 - r1c4 = (1) r1c2 => - 1 r2c3, r5c2; stte

Leren

March 11, 2015