The New Sudoku Players' Forum

by **ArkieTech** » Mon May 19, 2014 11:13 pm

Code: Select all: *-----------* |...|..6|.4.| |4..|218|...| |.7.|.9.|.6.| |---+---+---| |2..|...|395| |9..|.4.|..6| |613|...|..7| |---+---+---| |.3.|.2.|.5.| |...|135|..2| |.9.|6..|...| *-----------*

by **Leren** » Tue May 20, 2014 12:22 am

Code: Select all: *--------------------------------------------------------------* | 138 2 1589 | 357 57 6 | 158 4 189 | | 4 56 569 | 2 1 8 | 57 37 39 | | 138 7 158 | 345 9 34 | 2 6 18 | |--------------------+--------------------+--------------------| | 2 48 47 | 78 6 1 | 3 9 5 | | 9 58 57 | 378 4 237 |B18 128 6 | | 6 1 3 | 589 58c 29 | 4 2-8 7 | |--------------------+--------------------+--------------------| | 178 3 18 | 4789 2 479 | 6 5 48 | | 78 46 46 | 1 3 5 | 9 C78 2 | | 5 9 2 | 6 78b 47 |A178a 1378 1348 | *--------------------------------------------------------------*

XYZ Wing (17-8) Base Cell r9c7, Pincers r5c7, r8c8; 8 in r9c7 transported to r6c5 => - 8 r6c8; stte

Leren

by **SteveG48** » Tue May 20, 2014 1:00 am

Code: Select all: *-----------------------------------------------------------* | 138 2 1589 | 357 57 6 | 158 4 189 | | 4 56 569 | 2 1 8 | 57 37 39 | | 138 7 158 | 345 9 3-4 | 2 6 18 | *-------------------+-------------------+-------------------| | 2 48 47 | 78 6 1 | 3 9 5 | | 9 58 57 | 378 4 237 |b18 128 6 | | 6 1 3 | 589 58 c29 | 4 b28 7 | *-------------------+-------------------+-------------------| | 178 3 18 | 4789 2 d479 | 6 5 48 | | 78 46 46 | 1 3 5 | 9 78 2 | | 5 9 2 | 6 a78 ad47 |a178 1378 1348 | *-----------------------------------------------------------*

(4=178)r9c567 - (1=28)r5c7,r6c8 - (2=9)r6c6 - (9=47)r79c6 => -4 r3c6 ; stte

by **tlanglet** » Tue May 20, 2014 2:10 am

Code: Select all: *-----------------------------------------------------------* | 138 2 1589 | 357 57 6 | 158 4 189 | | 4 56 569 | 2 1 8 | 57 37 39 | | 138 7 158 | 345 9 34 | 2 6 18 | |-------------------+-------------------+-------------------| | 2 48 47 | 78 6 1 | 3 9 5 | | 9 58 57 | 378 4 237 |*18 128 6 | | 6 1 3 | 589 c58 29 | 4 2-8 7 | |-------------------+-------------------+-------------------| | 178 3 18 | 4789 2 479 | 6 5 48 | | 78 46 46 | 1 3 5 | 9 *78 2 | | 5 9 2 | 6 b78 47 |*17=8 1378 1348 | *-----------------------------------------------------------*

Single step AXY-wing( 17-8) with pivot (17=8)r9c7, pincers (18)r5c7 & (78)r8c8 => r6c8<>8

xy-wing(17-8)=8r9c7-8r9c5=8r6c5 => r6c8<>8

Ted

by **JC Van Hay** » Tue May 20, 2014 6:40 am

Code: Select all: +---------------+---------------+----------------------+ | 138 2 1589 | 357 57 6 | 158 4 189 | | 4 56 569 | 2 1 8 | 57 (37) 39 | | 138 7 158 | 345 9 34 | 2 6 18 | +---------------+---------------+----------------------+ | 2 48 47 | 78 6 1 | 3 9 5 | | 9 58 57 | 378 4 237 | 18 128 6 | | 6 1 3 | 589 58 29 | 4 28 7 | +---------------+---------------+----------------------+ | 178 3 18 | 4789 2 479 | 6 5 4-8 | | 78 46 46 | 1 3 5 | 9 (78) 2 | | 5 9 2 | 6 78 47 | (178) (1378) 134-8 | +---------------+---------------+----------------------+

[(178=3)r8c8,r9c78-(3=78)r28c8]-8r79c8; ste

by **Leren** » Tue May 20, 2014 8:02 am

Code: Select all: *--------------------------------------------------------------* | 138 2 1589 | 357 57 6 | 158 4 b189 | | 4 56 569 | 2 1 8 | 57 b37 b39 | | 138 7 158 | 345 9 34 | 2 6 b18 | |--------------------+--------------------+--------------------| | 2 48 47 | 78 6 1 | 3 9 5 | | 9 58 57 | 378 4 237 | 18 128 6 | | 6 1 3 | 589 58 29 | 4 28 7 | |--------------------+--------------------+--------------------| | 178 3 18 | 4789 2 479 | 6 5 4-8 | | 78 46 46 | 1 3 5 | 9 a78 2 | | 5 9 2 | 6 78 47 | 178 1378 134-8 | *--------------------------------------------------------------*

ALS XZ Rule: X = 7, Z = 8: (8=7) r8c8 - (7=8) r2c8, r123c9 => - 8 r79c9; stte

Leren

by **Leren** » Tue May 20, 2014 8:05 am

JC Van Hay wrote: [(178=3)r8c8,r9c78-(3=78)r28c8]-8r79c8; ste

Typo : [(178=3)r8c8,r9c78-(3=78)r28c8]-8r79c9
Leren

by **Ngisa** » Tue May 20, 2014 11:22 pm

Code: Select all: +-------------+-------------+---------------+ | 138 2 1589 | 357 57 6 | 158 4 f189 | | 4 56 569 | 2 1 8 | 57 d37 e39 | | 138 7 158 | 345 9 34 | 2 6 f18 | +-------------+-------------+---------------+ | 2 48 47 | 78 6 1 | 3 9 5 | | 9 58 57 | 378 4 237 | 18 128 6 | | 6 1 3 | 589 58 29 | 4 28 7 | +-------------+-------------+---------------+ | 178 3 18 | 789-4 2 79-4 | 6 5 g48 | | 78 46 46 | 1 3 5 | 9 c78 2 | | 5 9 2 | 6 78 a47 | b178 b1378 1348 | +-------------+-------------+---------------+

(4=7)r9c6-r9c78=(7)r8c8-(7=3)r2c8-(3=9)r2c9-(9=18)r13c9-(8=4)r7c9 => -4r7c46 stte.

by **Marty R.** » Wed May 21, 2014 4:53 pm

Leren, very nice. I've used the XYZ transport a few times but never transported the XYZ cell.

Code: Select all: +-------------+-------------+---------------+ | 138 2 1589 | 357 57 6 | 158 4 189 | | 4 56 569 | 2 1 8 | 57 37 39 | | 138 7 158 | 345 9 34 | 2 6 18 | +-------------+-------------+---------------+ | 2 48 47 | 78 6 1 | 3 9 5 | | 9 58 57 | 378 4 237 | 18 128 6 | | 6 1 3 | 589 58 29 | 4 28 7 | +-------------+-------------+---------------+ | 178 3 18 | 4789 2 479 | 6 5 48 | | 78 46 46 | 1 3 5 | 9 78 2 | | 5 9 2 | 6 78 47 | 178 1378 1348 | +-------------+-------------+---------------+

Play this puzzle online at the Daily Sudoku site

(4=8)r7c9-(81=37)r8c8, r9c78 contradiction c8=>r7c9<>8

May 20, 2014