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by **ArkieTech** » Sat Apr 11, 2015 11:19 pm

Code: Select all: *-----------* |6..|...|...| |.1.|6.5|27.| |3.5|.42|...| |---+---+---| |.64|..9|...| |...|4.3|...| |...|7..|59.| |---+---+---| |...|56.|1.3| |.36|2.8|.5.| |...|...|..2| *-----------*

by **Leren** » Sat Apr 11, 2015 11:52 pm

Code: Select all: *--------------------------------------------------------------* | 6 289 289 | 189 178 17 | 3 4 5 | | 4 1 89 | 6 3 5 | 2 7 89 | | 3 7 5 | 89 4 2 | 689 1 689 | |--------------------+--------------------+--------------------| |a25 6 4 | 18 25 9 | 78 3 178 | |c15789 589 1789 | 4 158 3 | 68 2 168 | |c128 b28 3 | 7 128 6 | 5 9 4 | |--------------------+--------------------+--------------------| | 279 249 279 | 5 6 47 | 1 8 3 | | 17 3 6 | 2 179 8 | 4 5 79 | |d178-5 458 178 | 3 179 147 | 79 6 2 | *--------------------------------------------------------------*

(5=2) r4c1 - (2=8) r6c2 - r56c1 = (8) r9c1 => - 5 r9c1; stte

Leren

by **Marty R.** » Sun Apr 12, 2015 12:09 am

Code: Select all: +----------------+-------------+-----------+ | 6 289 289 | 189 178 17 | 3 4 5 | | 4 1 89 | 6 3 5 | 2 7 89 | | 3 7 5 | 89 4 2 | 689 1 689 | +----------------+-------------+-----------+ | 25 6 4 | 18 25 9 | 78 3 178 | | 15789 589 1789 | 4 158 3 | 68 2 168 | | 128 28 3 | 7 128 6 | 5 9 4 | +----------------+-------------+-----------+ | 279 249 279 | 5 6 47 | 1 8 3 | | 17 3 6 | 2 179 8 | 4 5 79 | | 1578 458 178 | 3 179 147 | 79 6 2 | +----------------+-------------+-----------+

Play this puzzle online at the Daily Sudoku site

DP (68)r35c79: 1r5c9=9r3c79-(9=8)r3c4-(8=1)r4c4=>r4c9,r5c5<>1

by **SteveG48** » Sun Apr 12, 2015 12:30 am

Code: Select all: *--------------------------------------------------------------------* | 6 d289 c289 | 189 178 1-7 | 3 4 5 | | 4 1 c89 | 6 3 5 | 2 7 89 | | 3 7 5 | 89 4 2 | 689 1 689 | *----------------------+----------------------+----------------------| |e25 6 4 | 18 25 9 | 78 3 178 | | 15789 e589 1789 | 4 158 3 | 68 2 168 | | 128 e28 3 | 7 128 6 | 5 9 4 | *----------------------+----------------------+----------------------| |b279 bf249 b279 | 5 6 af47 | 1 8 3 | | 17 3 6 | 2 19-7 8 | 4 5 79 | | 1578 458 b178 | 3 19-7 a147 | 79 6 2 | *--------------------------------------------------------------------*

(7=14)r79c6 - (14=2798)r7c123,r9c3 - (8)r12c3 = r1c2 - (8=529)r4c1,r56c2 - (29=47)r7c26 => -7 r1c6,r89c5 ; stte

by **pjb** » Sun Apr 12, 2015 2:23 am

Code: Select all: 6 289 289 | 189 178 17 | 3 4 5 4 1 89 | 6 3 5 | 2 7 89 3 7 5 | 89 4 2 | 689 1 689 ------------------------+----------------------+--------------------- ac25 6 4 | 18 25 9 | 78 3 178 c15789 589 1789 | 4 158 3 | 68 2 168 c128 b28 3 | 7 128 6 | 5 9 4 ------------------------+----------------------+--------------------- c279 249 279 | 5 6 47 | 1 8 3 c17 3 6 | 2 179 8 | 4 5 79 178-5 458 178 | 3 179 147 | 79 6 2

(5=2)r4c1 - (2=8)r6c2 - (8=12579)r45678c1 => -5 r9c1; stte

Phil

by **Sudtyro2** » Sun Apr 12, 2015 1:04 pm

Code: Select all: *--------------------------------------------------------------* | 6 289 289 | 189 178 17 | 3 4 5 | | 4 1 89 | 6 3 5 | 2 7 89 | | 3 7 5 |*89 4 2 | 68+9 1 68+9 | |--------------------+--------------------+--------------------| | 25 6 4 | 1-8 25 9 |*78 3 *178 | | 15789 589 1789 | 4 158 3 | 68 2 68+1 | | 128 28 3 | 7 128 6 | 5 9 4 | |--------------------+--------------------+--------------------| | 279 249 279 | 5 6 47 | 1 8 3 | | 17 3 6 | 2 179 8 | 4 5 79 | | 1578 458 178 | 3 179 147 | 79 6 2 | *--------------------------------------------------------------*

Hope this is right...
Marty's DP(68)r35c79, but using “externals” on the 8s:
8r3c4 = 8r4c79 => -8r4c4; stte

SteveC

April 12, 2015