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by **ArkieTech** » Thu Oct 20, 2016 11:04 pm

Code: Select all: *-----------* |198|.7.|5..| |.5.|..1|...| |..2|...|...| |---+---+---| |3..|7..|8..| |2.9|4.6|7.3| |..6|..8|..9| |---+---+---| |...|...|6..| |...|2..|.7.| |..4|.1.|298| *-----------*

by **Leren** » Thu Oct 20, 2016 11:34 pm

Code: Select all: *-----------------------------------------------------* | 1 9 8 | 6 7 b34 | 5 a34 2 | | 467 5 37 | 38 2 1 | 9 348 67 | | 467 36 2 | 9 c48 5 | 1 d48-3 67 | |-----------------+-----------------+-----------------| | 3 4 1 | 7 9 2 | 8 6 5 | | 2 8 9 | 4 5 6 | 7 1 3 | | 5 7 6 | 1 3 8 | 4 2 9 | |-----------------+-----------------+-----------------| | 9 2 37 | 38 48 347 | 6 5 1 | | 8 1 5 | 2 6 9 | 3 7 4 | | 67 36 4 | 5 1 37 | 2 9 8 | *-----------------------------------------------------*

H2 Wing: (3=4) r1c8 - r1c6 = (4-8) r3c5 = (8) r3c8 => - 3 r3c8; stte

Leren

by **SteveG48** » Thu Oct 20, 2016 11:42 pm

Code: Select all: *--------------------------------------------------* | 1 9 8 | 6 7 4-3 | 5 34 2 | | 467 5 37 | 38 2 1 | 9 348 67 | |c467 c36 2 | 9 c48 5 | 1 348 c67 | *----------------+----------------+----------------| | 3 4 1 | 7 9 2 | 8 6 5 | | 2 8 9 | 4 5 6 | 7 1 3 | | 5 7 6 | 1 3 8 | 4 2 9 | *----------------+----------------+----------------| | 9 2 37 | 38 d48 d347 | 6 5 1 | | 8 1 5 | 2 6 9 | 3 7 4 | | 67 b36 4 | 5 1 ad37 | 2 9 8 | *--------------------------------------------------*

3r9c6 = r9c2 - (3=4678)r3c1259 - (8=347)b8p239 => -3 r1c6 ; stte

Or shorter:

Code: Select all: *--------------------------------------------------* | 1 9 8 | 6 7 34 | 5 34 2 | | 467 5 7-3 |b38 2 1 | 9 348 67 | |a467 a36 2 | 9 a48 5 | 1 348 a67 | *----------------+----------------+----------------| | 3 4 1 | 7 9 2 | 8 6 5 | | 2 8 9 | 4 5 6 | 7 1 3 | | 5 7 6 | 1 3 8 | 4 2 9 | *----------------+----------------+----------------| | 9 2 37 | 38 48 347 | 6 5 1 | | 8 1 5 | 2 6 9 | 3 7 4 | | 67 36 4 | 5 1 37 | 2 9 8 | *--------------------------------------------------*

(3=4678)r3c1259 - (8=3)r2c4 => -3 r2c3 ; stte

by **Marty R.** » Fri Oct 21, 2016 12:34 am

Code: Select all: +-----------+-----------+----------+ | 1 9 8 | 6 7 34 | 5 34 2 | | 467 5 37 | 38 2 1 | 9 348 67 | | 467 36 2 | 9 48 5 | 1 348 67 | +-----------+-----------+----------+ | 3 4 1 | 7 9 2 | 8 6 5 | | 2 8 9 | 4 5 6 | 7 1 3 | | 5 7 6 | 1 3 8 | 4 2 9 | +-----------+-----------+----------+ | 9 2 37 | 38 48 347 | 6 5 1 | | 8 1 5 | 2 6 9 | 3 7 4 | | 67 36 4 | 5 1 37 | 2 9 8 | +-----------+-----------+----------+

Play this puzzle online at the Daily Sudoku site

1) X-Wing (3) c34=> -3r2c8, r7c6
2) XY-Wing (38-4) pivot r2c4, pincers r1c6, r2c8=> -4r1c8

by **pjb** » Fri Oct 21, 2016 1:34 am

Code: Select all: 1 9 8 | 6 7 34 | 5 34 2 b467 5 b37 |b38 2 1 | 9 348 b67 67-4 36 2 | 9 a48 5 | 1 348 67 ------------------------+----------------------+--------------------- 3 4 1 | 7 9 2 | 8 6 5 2 8 9 | 4 5 6 | 7 1 3 5 7 6 | 1 3 8 | 4 2 9 ------------------------+----------------------+--------------------- 9 2 37 | 38 48 347 | 6 5 1 8 1 5 | 2 6 9 | 3 7 4 67 36 4 | 5 1 37 | 2 9 8

(4=8)r3c5 - (8=4)r2c1349 => -4 r3c1; stte

Phil

by **Ngisa** » Fri Oct 21, 2016 5:24 pm

Code: Select all: +-----------+-----------+----------+ | 1 9 8 | 6 7 34 | 5 34 2 | | 467 5 37 | a38 2 1 | 9 b348 67 | | 467 d36 2 | 9 48 5 | 1 c348 67 | +-----------+-----------+----------+ | 3 4 1 | 7 9 2 | 8 6 5 | | 2 8 9 | 4 5 6 | 7 1 3 | | 5 7 6 | 1 3 8 | 4 2 9 | +-----------+-----------+----------+ | 9 2 f37 | 8-3 48 347 | 6 5 1 | | 8 1 5 | 2 6 9 | 3 7 4 | | 67 e36 4 | 5 1 37 | 2 9 8 | +-----------+-----------+----------+

(3=8)r2c4 - r2c8 = (8-3)r3c8 = r3c2 - r9c2 = (3)r7c3 => -3 r7c4; stte

Clement

October 21, 2016