The New Sudoku Players' Forum

by **ArkieTech** » Sat Jun 29, 2013 12:15 am

Code: Select all: *-----------* |...|..2|.37| |...|38.|...| |...|...|5.9| |---+---+---| |7..|..9|...| |..2|458|6..| |...|2..|..4| |---+---+---| |3.1|...|...| |...|.64|...| |27.|9..|...| *-----------*

by **Leren** » Sat Jun 29, 2013 1:00 am

Code: Select all: *--------------------------------------------------------------* | 4 b168 68 | 5 9 2 | 18 3 7 | | 59 259 579 | 3 8 167 | 124 1246 126 | |a18 23 37 | 7-1 4 167 | 5 1268 9 | |--------------------+--------------------+--------------------| | 7 13458 3458 | 6 13 9 | 1238 1258 12358 | | 19 139 2 | 4 5 8 | 6 7 13 | | 6 1358 358 | 2 7 13 | 1389 1589 4 | |--------------------+--------------------+--------------------| | 3 c46 1 | 8 2 e57 | 479 4569 d56 | | 589 589 589 |f17 6 4 | 1237 12 123 | | 2 7 46 | 9 13 135 | 148 14568 1568 | *--------------------------------------------------------------*

(1) r3c1 = (1-6) r1c2 = r7c2 - (6=5) r7c9 - (5=7) r7c6 - (7=1) r8c4 => - 1 r3c4; stte

Leren

by **tlanglet** » Sat Jun 29, 2013 3:08 am

Code: Select all: *--------------------------------------------------------------------* | 4 168 b68 | 5 9 2 | 18 3 7 | | 59 259 579 | 3 8 167 | 124 1246 126 | |a18 23 37 |-17 4 167 | 5 1268 9 | |----------------------+----------------------+----------------------| | 7 13458 3458 | 6 13 9 | 1238 1258 12358 | | 19 139 2 | 4 5 8 | 6 7 13 | | 6 1358 358 | 2 7 13 | 1389 1589 4 | |----------------------+----------------------+----------------------| | 3 c46 1 | 8 2 c57 | 479 4569 c56 | | 589 589 589 |d17 6 4 | 1237 12 123 | | 2 7 b46 | 9 13 135 | 148 14568 1568 | *--------------------------------------------------------------------*

(1=8)r3c1-(8=64)r19c3-(4=657)7c296-(7=1)r8c4 => r3c4<>1

Ted

by **pjb** » Sat Jun 29, 2013 6:06 am

Code: Select all: 4 c168 68 | 5 9 2 | 18 3 7 59 259 579 | 3 8 16-7 | 124 1246 126 b18 23 37 |a17 4 16-7 | 5 1268 9 ---------------------+----------------------+--------------------- 7 13458 3458 | 6 13 9 | 1238 1258 12358 19 139 2 | 4 5 8 | 6 7 13 6 1358 358 | 2 7 13 | 1389 1589 4 ---------------------+----------------------+--------------------- 3 d46 1 | 8 2 f57 | 479 4569 e56 589 589 589 | 1-7 6 4 | 1237 12 123 2 7 46 | 9 13 135 | 148 14568 1568

(7=1) r3c4 - r3c1 = (1-6) r1c2 = r7c2 - (6=5) r7c9 - (5=7) r7c6 => -7 r23c6, -7 r8c4; stte
Phil

by **ArkieTech** » Sat Jun 29, 2013 10:15 am

Code: Select all: *--------------------------------------------------------------------* | 4 168 b68 | 5 9 2 | 18 3 7 | | 59 259 579 | 3 8 167 | 124 1246 126 | |a18 23 37 |a17 4 167 | 5 1268 9 | |----------------------+----------------------+----------------------| | 7 13458 3458 | 6 13 9 | 1238 1258 12358 | | 19 139 2 | 4 5 8 | 6 7 13 | | 6 1358 358 | 2 7 13 | 1389 1589 4 | |----------------------+----------------------+----------------------| | 3 46 1 | 8 2 57 | 479 4569 c56 | | 589 589 589 | 1-7 6 4 |c1237 c12 c123 | | 2 7 b46 | 9 13 135 |c148 c14568 c1568 | *--------------------------------------------------------------------* (7=8)r3c14-(8=4)r19c3-(4=7)r89c789,r7c9 => -7r8c4; ste

by **Marty R.** » Sat Jun 29, 2013 4:48 pm

XY-Chain, very similar to Phil's solution but with a couple of different cells and same eliminations.

AU Tough June 29, 2013