The New Sudoku Players' Forum

by **daj95376** » Fri Apr 26, 2013 1:21 am

Code: Select all: +-----------------------+ | 1 3 . | . . 6 | . . . | | 8 9 . | . 5 . | 4 . . | | . . 4 | . . . | . . . | |-------+-------+-------| | . . . | 2 . . | 5 . . | | . 1 . | . . . | . . 4 | | 5 . . | . . . | 3 9 2 | |-------+-------+-------| | . 8 . | 5 . 2 | 7 . 6 | | . . . | . . 9 | . 2 . | | . . . | . 7 4 | 9 . 8 | +-----------------------+

Play this puzzle online at the Daily Sudoku site

by **ArkieTech** » Fri Apr 26, 2013 2:40 am

Code: Select all: *--------------------------------------------------------------------* | 1 3 5-7 | 48 248 6 | 28 c57 9 | | 8 9 2 | 137 5 137 | 4 6 137 | |a67 567 4 | 13789 12389 1378 | 28 135-7 135-7 | |----------------------+----------------------+----------------------| | 34679 467 36789 | 2 34689 378 | 5 178 17 | | 2 1 3789 | 3789 389 5 | 6 78 4 | | 5 467 678 | 14678 1468 178 | 3 9 2 | |----------------------+----------------------+----------------------| | 39 8 139 | 5 13 2 | 7 4 6 | | 3467 4567 3567 | 368 368 9 | 1 2 35 | |b36 2 1356 | 136 7 4 | 9 b35 8 | *--------------------------------------------------------------------* als xy-wing (7=6)r3c1-(6=5)r9c18-(5=7)r1c8 => -7r1c3,r3c89; ste

by **Leren** » Fri Apr 26, 2013 4:09 am

Code: Select all: *--------------------------------------------------------------* | 1 3 a57 | 48 248 6 | 28 7-5 9 | | 8 9 2 | 137 5 137 | 4 6 137 | |a67 567 4 | 13789 12389 1378 | 28 1357 1357 | |--------------------+--------------------+--------------------| | 34679 467 36789 | 2 34689 378 | 5 178 17 | | 2 1 3789 | 3789 389 5 | 6 78 4 | | 5 467 678 | 14678 1468 178 | 3 9 2 | |--------------------+--------------------+--------------------| | 39 8 139 | 5 13 2 | 7 4 6 | | 3467 4567 3567 | 368 368 9 | 1 2 35 | |b36 2 136-5 | 136 7 4 | 9 b35 8 | *--------------------------------------------------------------*

als-xz rule; x = 6, z = 5 : (5=6) r1c3, r3c1 - (6=5) r9c18 => -5 r1c8, r9c3; stte

Leren

by **pjb** » Fri Apr 26, 2013 4:49 am

A discontinuous loop:

(5) r9c3 - r1c3 = (5-6) r3c2 = r3c1 - (6=3) r9c1 - (3=5) r9c8 - r9c3 => r9c3 <> 5; stte

Phil

by **Marty R.** » Fri Apr 26, 2013 1:15 pm

Code: Select all: +------------------+------------------+--------------+ | 1 3 57 | 48 248 6 | 28 57 9 | | 8 9 2 | 137 5 137 | 4 6 137 | | 67 567 4 | 13789 12389 1378 | 28 1357 1357 | +------------------+------------------+--------------+ | 34679 467 36789 | 2 34689 378 | 5 178 17 | | 2 1 3789 | 3789 389 5 | 6 78 4 | | 5 467 678 | 14678 1468 178 | 3 9 2 | +------------------+------------------+--------------+ | 39 8 139 | 5 13 2 | 7 4 6 | | 3467 4567 3567 | 368 368 9 | 1 2 35 | | 36 2 1356 | 136 7 4 | 9 35 8 | +------------------+------------------+--------------+

Play this puzzle online at the Daily Sudoku site

XY-Chain (5=3)r9c8-(3=6)r9c1-(6=7)r3c1-(7=5)r1c3=>r1c8,r9c3<>5

There Was a Time: 04/26/13