The New Sudoku Players' Forum

by **ArkieTech** » Sat Feb 08, 2014 12:13 am

Code: Select all: *-----------* |1..|.7.|3..| |...|..3|.19| |..3|.29|8..| |---+---+---| |7..|..5|..2| |.3.|...|.6.| |6..|3..|..1| |---+---+---| |..1|75.|6..| |48.|6..|...| |..6|.8.|..3| *-----------*

by **SteveG48** » Sat Feb 08, 2014 12:37 am

Code: Select all: *-----------------------------------------------------------* | 1 24 9 | 8 7 6 | 3 245 e45 | | 8 6 b27 | 5 4 3 |c27 1 9 | | 5 47 3 | 1 2 9 | 8 d47 6 | *-------------------+-------------------+-------------------| | 7 1 8 | 4 6 5 | 9 3 2 | | 9 3 45 | 2 1 78 | 457 6 4578 | | 6 25 245 | 3 9 78 | 457 4578 1 | *-------------------+-------------------+-------------------| | 3 9 1 | 7 5 24 | 6 248 48 | | 4 8 a57 | 6 3 12 | 12 9 7-5 | | 2 57 6 | 9 8 14 | 1457 457 3 | *-----------------------------------------------------------*

(5=7)r8c3 - r2c3 = r2c7 - (7=4)r3c8 - (4=5)r1c9 => -5 r8c9 ; stte

by **Leren** » Sat Feb 08, 2014 12:39 am

Code: Select all: *--------------------------------------------------------------* | 1 b24 9 | 8 7 6 | 3 245 a45 | | 8 6 27 | 5 4 3 | 27 1 9 | | 5 47 3 | 1 2 9 | 8 47 6 | |--------------------+--------------------+--------------------| | 7 1 8 | 4 6 5 | 9 3 2 | | 9 3 45 | 2 1 78 | 457 6 4578 | | 6 c25 245 | 3 9 78 | 457 4578 1 | |--------------------+--------------------+--------------------| | 3 9 1 | 7 5 24 | 6 248 48 | | 4 8 e57 | 6 3 12 | 12 9 7-5 | | 2 d57 6 | 9 8 14 | 1457 457 3 | *--------------------------------------------------------------*

(5=4) r1c9 - (4=2) r1c2 - (2=5) r6c2 - r9c2 = (5) r8c3 => - 5 r8c9; stte

Leren

by **pjb** » Sat Feb 08, 2014 12:45 am

Code: Select all: 1 a24 9 | 8 7 6 | 3 245 45 8 6 b7-2 | 5 4 3 |c27 1 9 5 47 3 | 1 2 9 | 8 47 6 ---------------------+----------------------+--------------------- 7 1 8 | 4 6 5 | 9 3 2 9 3 d45 | 2 1 78 |d457 6 4578 6 5-2 d245 | 3 9 78 |d457 4578 1 ---------------------+----------------------+--------------------- 3 9 1 | 7 5 24 | 6 248 48 4 8 57 | 6 3 12 | 12 9 57 2 57 6 | 9 8 14 | 1457 457 3

(2) r1c2 = r2c3 - (2=7) r2c7 - (7=2) UR:r56c37 => -2 r2c3, r6c2; stte

Phil

by **tlanglet** » Sat Feb 08, 2014 2:33 am

Code: Select all: *-----------------------------------------------------------* | 1 24 9 | 8 7 6 | 3 245 45 | | 8 6 7-2 | 5 4 3 |*27 1 9 | | 5 47 3 | 1 2 9 | 8 47 6 | |-------------------+-------------------+-------------------| | 7 1 8 | 4 6 5 | 9 3 2 | | 9 3 *45 | 2 1 78 |*45=7 6 4578 | | 6 25 *45=2 | 3 9 78 |*45=7 4578 1 | |-------------------+-------------------+-------------------| | 3 9 1 | 7 5 24 | 6 248 48 | | 4 8 57 | 6 3 12 | 12 9 57 | | 2 57 6 | 9 8 14 | 1457 457 3 | *-----------------------------------------------------------*

AUR(45)r56c37[2r6c3=7r56c7-(7=2)r2c7 => r2c3<>2

Ted

by **pjb** » Sat Feb 08, 2014 5:16 am

Steve and Leren - 2 minutes from a dead heat with same solution!
Phil

by **ArkieTech** » Sat Feb 08, 2014 1:19 pm

Code: Select all: *-----------------------------------------------------------* | 1 24 9 | 8 7 6 | 3 245 b45 | | 8 6 27 | 5 4 3 | 27 1 9 | | 5 4-7 3 | 1 2 9 | 8 a47 6 | |-------------------+-------------------+-------------------| | 7 1 8 | 4 6 5 | 9 3 2 | | 9 3 45 | 2 1 78 | 457 6 4578 | | 6 25 245 | 3 9 78 | 457 4578 1 | |-------------------+-------------------+-------------------| | 3 9 1 | 7 5 24 | 6 248 48 | | 4 8 c57 | 6 3 12 | 12 9 b57 | | 2 d57 6 | 9 8 14 | 1457 45-7 3 | *-----------------------------------------------------------* (7=4)r3c8-(4=7)r18c9-r8c3=7r9c2 => -7r3c2,r9c8; ste

by **Ngisa** » Sat Feb 08, 2014 2:05 pm

Code: Select all: +----------+--------+----------------+ | 1 2-4 9 | 8 7 6 | 3 245 a45 | | 8 6 27 | 5 4 3 | 27 1 9 | | 5 e47 3 | 1 2 9 | 8 47 6 | +----------+--------+----------------+ | 7 1 8 | 4 6 5 | 9 3 2 | | 9 3 45 | 2 1 78 | 457 6 4578 | | 6 25 245 | 3 9 78 | 457 4578 1 | +----------+--------+----------------+ | 3 9 1 | 7 5 24 | 6 248 48 | | 4 8 c57 | 6 3 12 | 12 9 b57 | | 2 d57 6 | 9 8 14 | 1457 457 3 | +----------+--------+----------------+

XY Chain: (4=5)r1c9-(5=7)r8c9-(7=5)r8c2-(5=7)r9c2-(7=4)r3c2 => -4r1c1; stte.

by **Marty R.** » Sat Feb 08, 2014 5:54 pm

Code: Select all: +----------+--------+----------------+ | 1 24 9 | 8 7 6 | 3 245 45 | | 8 6 27 | 5 4 3 | 27 1 9 | | 5 47 3 | 1 2 9 | 8 47 6 | +----------+--------+----------------+ | 7 1 8 | 4 6 5 | 9 3 2 | | 9 3 45 | 2 1 78 | 457 6 4578 | | 6 25 245 | 3 9 78 | 457 4578 1 | +----------+--------+----------------+ | 3 9 1 | 7 5 24 | 6 248 48 | | 4 8 57 | 6 3 12 | 12 9 57 | | 2 57 6 | 9 8 14 | 1457 457 3 | +----------+--------+----------------+

Play this puzzle online at the Daily Sudoku site

XY-Wing Chain, 47-57-57-57-45: (4=7)r3c2-r9c2=r8c3-(7=5)r8c9-(5=4)r1c9=>r1c2,r3c8<>4

February 8, 2014