The New Sudoku Players' Forum

by **ArkieTech** » Mon Oct 14, 2013 12:21 am

Code: Select all: *-----------* |1..|.6.|...| |..4|7.3|...| |...|...|.14| |---+---+---| |.98|..6|...| |.7.|.3.|.2.| |...|1..|59.| |---+---+---| |72.|...|...| |...|6.4|3..| |...|.8.|..5| *-----------*

by **Leren** » Mon Oct 14, 2013 1:17 am

Code: Select all: *--------------------------------------------------------------* | 1 58 2579 | 4 6 2589 | 2789 358 23789 | | 2689 568 4 | 7 1 3 | 2689 58 2689 | | 23689 3568 23579 | 2589 29 2589 | 26789 1 4 | |--------------------+--------------------+--------------------| | 25 9 8 |b25 47 6 | 147 34 137 | | 56-4 7 1 |c589 3 c589 |c468 2 c68 | | 2346 346 23 | 1 47 28 | 5 9 678 | |--------------------+--------------------+--------------------| | 7 2 6 | 3 5 1 | 489 48 89 | | 89 158 59 | 6 29 4 | 3 7 12 | |a349 134 a39 |a29 8 7 | 12 6 5 | *--------------------------------------------------------------*

Death Blossom/ALS XY Wing: (4=2) r9c134 - (2=5) r4c4 - (5=4) r5c4679 => - 4 r5c1; stte

Leren

by **pjb** » Mon Oct 14, 2013 2:44 am

A chain to the same elimination:

Code: Select all: 1 58 2579 | 4 6 2589 | 2789 358 23789 2689 568 4 | 7 1 3 | 2689 58 2689 23689 3568 23579 | 2589 29 2589 | 26789 1 4 ---------------------+----------------------+--------------------- f25 9 8 |e25 47 6 | 147 34 137 g56-4 7 1 | 589 3 589 |h468 2 68 2346 a346 23 | 1 47 28 | 5 9 678 ---------------------+----------------------+--------------------- 7 2 6 | 3 5 1 | 489 48 89 89 158 59 | 6 29 4 | 3 7 12 349 b134 39 |d29 8 7 |c12 6 5

(4) r6c2 = (4-1) r9c2 = (1-2) r9c7 = r9c4 - (2=5) r4c4 - r4c1 = (5-4) r5c1 = r5c7 => -4 r5c1; stte

Phil

by **tlanglet** » Tue Oct 15, 2013 1:55 pm

I found the identical path posted by Phil, and did not have the motivation to pursue an alternate....

Ted

AU Tough October 14, 2013