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by **ArkieTech** » Sun Jul 17, 2016 11:08 pm

Code: Select all: *-----------* |..5|92.|..4| |1..|..4|.76| |...|...|3..| |---+---+---| |75.|6..|...| |...|2.9|...| |...|..1|.82| |---+---+---| |..8|...|...| |21.|4..|..8| |6..|.35|9..| *-----------*

by **pjb** » Sun Jul 17, 2016 11:54 pm

Code: Select all: 3 67 5 | 9 2 67 | 8 1 4 1 8 9 | 3 5 4 | 2 7 6 4 2 67 | 17 16 8 | 3 9 5 ------------------------+----------------------+--------------------- 7 5 2 | 6 8 3 | 1 4 9 8 46 1 | 2 47 9 |*567 *356 a37 9 3 46 | 5 47 1 | 6-7 8 2 ------------------------+----------------------+--------------------- 5 9 8 | 17 16 2 | 4 36 37 2 1 3 | 4 9 67 |*567 *56 8 6 47 47 | 8 3 5 | 9 2 1

Using UR r58c78: (3)r5c8 = (7)r58c7
(7=3)r5c9 - (3=7)UR => -7 r6c7; stte

Phil

by **Leren** » Mon Jul 18, 2016 1:02 am

Code: Select all: *--------------------------------------------------------------* | 3 A67 5 | 9 2 B67 | 8 1 4 | | 1 8 9 | 3 5 4 | 2 7 6 | | 4 2 B67 | 17 16 8 | 3 9 5 | |--------------------+--------------------+--------------------| | 7 5 2 | 6 8 3 | 1 4 9 | | 8 46 1 | 2 47 9 | 567 356 37 | | 9 3 46 | 5 47 1 |B67 8 2 | |--------------------+--------------------+--------------------| | 5 9 8 | 17 16 2 | 4 36 37 | | 2 1 3 | 4 9 A67 | 5-67 56 8 | | 6 47 47 | 8 3 5 | 9 2 1 | *--------------------------------------------------------------*

Remote Pairs {67} Cells r1c2 r8c6 + ve parity (A) / r1c6 r3c3 r6c7 - ve parity (B) => - 67 r8c7; stte

Leren

by **Marty R.** » Mon Jul 18, 2016 1:22 am

Code: Select all: +---------+----------+------------+ | 3 67 5 | 9 2 67 | 8 1 4 | | 1 8 9 | 3 5 4 | 2 7 6 | | 4 2 67 | 17 16 8 | 3 9 5 | +---------+----------+------------+ | 7 5 2 | 6 8 3 | 1 4 9 | | 8 46 1 | 2 47 9 | 567 356 37 | | 9 3 46 | 5 47 1 | 67 8 2 | +---------+----------+------------+ | 5 9 8 | 17 16 2 | 4 36 37 | | 2 1 3 | 4 9 67 | 567 56 8 | | 6 47 47 | 8 3 5 | 9 2 1 | +---------+----------+------------+

Play this puzzle online at the Daily Sudoku site

UR (56)r58c78

37r5c78=7r8c7

(37=4)r5c7895

7r8c7-(7=356)b9p235-(65=3)r578c8-(3=74)r5c95=> 4r5c5

by **Ngisa** » Mon Jul 18, 2016 7:49 am

Code: Select all: +---------+-----------+------------+ | 3 67 5 | 9 2 67 | 8 1 4 | | 1 8 9 | 3 5 4 | 2 7 6 | | 4 2 f67 | e17 167 8 | 3 9 5 | +---------+-----------+------------+ | 7 5 2 | 6 8 3 | 1 4 9 | | 8 6-4 1 | 2 a47 9 | 567 356 b37 | | 9 3 g46 | 5 47 1 | 67 8 2 | +---------+-----------+------------+ | 5 9 8 | d17 16 2 | 4 36 c37 | | 2 1 3 | 4 9 67 | 567 56 8 | | 6 47 47 | 8 3 5 | 9 2 1 | +---------+-----------+------------+

XY-Chain:
(4=7)r5c5 - (7=3)r5c9 - (3=7)r7c9 - (7=1)r7c4 - (1=7)r3c4 - (7=6)r3c3 - (6=4)r6c3 => -4 r5c2; stte

Clement

by **Marty R.** » Mon Jul 18, 2016 6:15 pm

Using UR r58c78: (3)r5c8 = (7)r58c7
(7=3)r5c9 - (3=7)UR => -7 r6c7; stte

Nice work, Phil. I like those mid-chain UR insertions.

by **SteveG48** » Mon Jul 18, 2016 9:25 pm

Code: Select all: *--------------------------------------------------* | 3 67 5 | 9 2 67 | 8 1 4 | | 1 8 9 | 3 5 4 | 2 7 6 | | 4 2 67 | 17 16 8 | 3 9 5 | *----------------+----------------+----------------| | 7 5 2 | 6 8 3 | 1 4 9 | | 8 46 1 | 2 47 9 |a567 b356 3-7 | | 9 3 46 | 5 47 1 |c67 8 2 | *----------------+----------------+----------------| | 5 9 8 | 17 16 2 | 4 36 37 | | 2 1 3 | 4 9 67 |b56-7 56 8 | | 6 47 47 | 8 3 5 | 9 2 1 | *--------------------------------------------------*

7r5c7 = (6)(r5c8,r8c7)[BUG+3] - (6=7)r6c7 => -7 r5c9,r8c7 ; stte

July 18, 2016