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by **ArkieTech** » Sat Dec 02, 2017 11:18 pm

Code: Select all: *-----------* |.97|...|...| |6..|.32|.4.| |.2.|91.|...| |---+---+---| |...|5..|.96| |5.1|...|2.3| |93.|..6|...| |---+---+---| |...|.85|.2.| |.7.|36.|..8| |...|...|63.| *-----------*

by **eleven** » Sat Dec 02, 2017 11:34 pm

Code: Select all: *--------------------------------------------------------------* | 148 9 7 | 6 5 48 | 3 a18 2 | | 6 158 58 | 78 3 2 | 789 4 179 | | 48 2 3 | 9 1 c478 | b578 6 b57 | |----------------------+------------------+--------------------| | 7 48 48 | 5 2 3 | 1 9 6 | | 5 6 1 | 48 49 89 | 2 7 3 | | 9 3 2 | 1 7 6 | 458 58 45 | |----------------------+------------------+--------------------| | 3 14 6 | 47 8 5 | 479 2 1479 | | 2 7 459 | 3 6 e19 | 45 5-1 8 | | 18 1458 4589 | 2 49 d179 | 6 3 1457 | *--------------------------------------------------------------*

(1=8)r1c8-(8=7)r3c79-r3c6=(7-1)r9c6=r8c6 => -1r8c8, stte

by **SteveG48** » Sat Dec 02, 2017 11:42 pm

Code: Select all: *-----------------------------------------------------------* | 148 9 7 | 6 5 48 | 3 18 2 | | 6 b158 58 | 78 3 2 | 789 4 c179 | | 48 2 3 | 9 1 478 | 578 6 57 | *-------------------+-------------------+-------------------| | 7 48 48 | 5 2 3 | 1 9 6 | | 5 6 1 | 48 49 89 | 2 7 3 | | 9 3 2 | 1 7 6 | 458 58 45 | *-------------------+-------------------+-------------------| | 3 a14 6 | 7-4 8 5 | 479 2 d1479 | | 2 7 459 | 3 6 f19 | 45 e15 8 | | 18 158-4 589-4 | 2 f49 179 | 6 3 d1457 | *-----------------------------------------------------------*

(4=1)r7c2 - r2c2 = r2c9 - r79c9 = r8c8 - (1=49)b8p68 => -4 r7c4,r9c23 ; stte

by **Marty R.** » Sun Dec 03, 2017 1:20 am

Code: Select all: +---------------+-----------+-------------+ | 148 9 7 | 6 5 48 | 3 18 2 | | 6 158 58 | 78 3 2 | 789 4 179 | | 48 2 3 | 9 1 478 | 578 6 57 | +---------------+-----------+-------------+ | 7 48 48 | 5 2 3 | 1 9 6 | | 5 6 1 | 48 49 89 | 2 7 3 | | 9 3 2 | 1 7 6 | 458 58 45 | +---------------+-----------+-------------+ | 3 14 6 | 47 8 5 | 479 2 1479 | | 2 7 459 | 3 6 19 | 45 15 8 | | 18 1458 4589 | 2 49 179 | 6 3 1457 | +---------------+-----------+-------------+

Play this puzzle online at the Daily Sudoku site

UR (48)r13c16 internals
1r1c1=7r3c6
1r1c1-r1c8=r8c8-(1=98)r85c6
7r3c6-(7=198)r985c6= > 8r5c6

by **pjb** » Sun Dec 03, 2017 3:18 am

Code: Select all: 148 9 7 | 6 5 b48 | 3 a18 2 6 158 58 | 78 3 2 | 789 4 179 48 2 3 | 9 1 b478 |a578 6 a57 ------------------------+----------------------+--------------------- 7 48 48 | 5 2 3 | 1 9 6 5 6 1 | 48 49 b89 | 2 7 3 9 3 2 | 1 7 6 | 458 58 45 ------------------------+----------------------+--------------------- 3 14 6 | 47 8 5 | 479 2 1479 2 7 459 | 3 6 b19 | 45 5-1 8 18 1458 4589 | 2 49 179 | 6 3 1457

(1=7)r1c8,r3c79 - (7=1)r1358c6 => -1 r8c8; stte
or
(7)r7c4 = (7-1)r9c6 = r8c6 - r8c8 = r1c8 - (1=7)UR:r13c16 => -7 r2c4, r9c6; stte

Phil

by **Cenoman** » Sun Dec 03, 2017 11:09 am

Code: Select all: +----------------------+------------------+--------------------+ | b148* 9 7 | 6 5 48* | 3 c18 2 | | 6 158 58 | 78 3 2 | 789 4 179 | | 48* 2 3 | 9 1 a478* | 578 6 57 | +----------------------+------------------+--------------------+ | 7 48 48 | 5 2 3 | 1 9 6 | | 5 6 1 | 48 49 89 | 2 7 3 | | 9 3 2 | 1 7 6 | 458 58 45 | +----------------------+------------------+--------------------+ | 3 14 6 | 47 8 5 | 479 2 1479 | | 2 7 459 | 3 6 e19 | 45 d15 8 | | 18 1458 4589 | 2 49 f179 | 6 3 1457 | +----------------------+------------------+--------------------+

UR: (48)r13c16 using internals, with simple coloring of the 1's
(7)r3c6==(1)r1c1 - (1)r1c8 = r8c8 - r8c6 = (1)r9c6 => -7 r9c6; stte

or

Code: Select all: +----------------------+------------------+--------------------+ | 148 9 7 | 6 5 48 | 3 f18 2 | | 6 158 58 | a78 3 2 | 789 4 179 | | 48 2 3 | 9 1 Cb478 | D578 6 D57 | +----------------------+------------------+--------------------+ | 7 48 48 | 5 2 3 | 1 9 6 | | 5 6 1 | 48 49 89 | 2 7 3 | | 9 3 2 | 1 7 6 | 458 58 45 | +----------------------+------------------+--------------------+ | 3 14 6 | A47 8 5 | 479 2 1479 | | 2 7 459 | 3 6 d19 | 45 e15 8 | | 18 1458 4589 | 2 49 Bc179 | 6 3 1457 | +----------------------+------------------+--------------------+

UR(79)r27c79 using externals:
(7)r2c4 - r3c6 = (7-1)r9c6 = r8c6 - r8c8 = r1c8
(7)r7c4 - r9c6 = r3c6 - (7=8)r3c79
=> -8 r1c8; stte

Cenoman

by **Ngisa** » Sun Dec 03, 2017 10:34 pm

Code: Select all: +-------------------------+---------------------+------------------------+ |f148 9 7 | 6 5 48 | 3 e18 2 | | 6 g158 58 | 78 3 2 | 789 4 179 | | 48 2 3 | 9 1 478 | 578 6 57 | +-------------------------+---------------------+------------------------+ | 7 48 48 | 5 2 3 | 1 9 6 | | 5 6 1 |a48 49 b89 | 2 7 3 | | 9 3 2 | 1 7 6 | 458 58 45 | +-------------------------+---------------------+------------------------+ | 3 h14 6 | 7-4 8 5 | 479 2 1479 | | 2 7 459 | 3 6 c19 | 45 d15 8 | | 148 1458 4589 | 2 49 179 | 6 3 1457 | +-------------------------+---------------------+------------------------+

(4=8)r5c4 - (8=9)r5c6 - (9=1)r8c6 - r8c8 = r1c8 - r1c1 = r2c2 - (1=4)r7c2 => -4 r7c4; stte

Clement

December 3, 2017