The New Sudoku Players' Forum

by **ArkieTech** » Tue Feb 21, 2017 12:45 am

Code: Select all: *-----------* |...|.38|4.9| |3..|7..|.2.| |.8.|..2|7..| |---+---+---| |6..|..1|3..| |4..|.6.|..5| |..8|3..|..4| |---+---+---| |..7|9..|.5.| |.2.|..7|..1| |5.6|18.|...| *-----------*

by **SteveG48** » Tue Feb 21, 2017 1:09 am

Code: Select all: *--------------------------------------------------------------------* | 7 56 2 | 56 3 8 | 4 1 9 | | 3 1469 149 | 7 19 46 | 5 2 8 | | 19 8 45 | 45 19 2 | 7 36 36 | *----------------------+----------------------+----------------------| | 6 ad579 ad59 | 28 4 1 | 3 c78-9 a27 | | 4 137 13 | 28 6 9 | 128 78 5 | | 2 c1-9 8 | 3 7 5 | 169 69 4 | *----------------------+----------------------+----------------------| | 18 134 7 | 9 2 346 | 68 5 36 | | 89 2 349 | 46 5 7 | 689 34689 1 | | 5 b349 6 | 1 8 b34 | 29 b3479 b27 | *--------------------------------------------------------------------*

(9=257)r4c239 - (2=3479)r9c2689 - (9r6c2)&(9r4c8) = 9r4c23 => -9 r6c2,r4c8 ; stte

by **Leren** » Tue Feb 21, 2017 1:43 am

Code: Select all: *------------------------------------------------------------------------* | 7 b56 2 | a56 3 8 | 4 1 9 | | 3 b1469 149 | 7 19 46 | 5 2 8 | | 19 8 45 | 45 19 2 | 7 36 36 | |-----------------------+------------------------+-----------------------| | 6 579 59 | 28 4 1 | 3 789 27 | | 4 137 13 | 28 6 9 | 128 78 5 | | 2 b19 8 | 3 7 5 | 169 69 4 | |-----------------------+------------------------+-----------------------| | 18 b134 7 | 9 2 346 | 68 5 36 | |c89 2 c349 |ca46 5 7 |c689 3689-4 1 | | 5 b349 6 | 1 8 34 | 29 3479 27 | *------------------------------------------------------------------------*

ALS XY Wing: (4=5) r18c4 - (5=3) r12679c2 - (3=4) r8c1347 => - 4 r8c8; stte

by **pjb** » Tue Feb 21, 2017 6:05 am

Code: Select all: 7 56 2 | 56 3 8 | 4 1 9 3 1469 149 | 7 19 46 | 5 2 8 19 8 c45 |b45 19 2 | 7 36 36 ------------------------+----------------------+--------------------- 6 579 d59 | 28 4 1 | 3 789 27 4 137 f13 | 28 6 9 | 128 78 5 2 e19 8 | 3 7 5 | 169 69 4 ------------------------+----------------------+--------------------- 18 134 7 | 9 2 346 | 68 5 36 89 2 g349 |a46 5 7 | 689 h3689-4 1 5 349 6 | 1 8 34 | 29 3479 27

(4)r8c4 = r3c4 -(4=5)r3c3 - (5=9)r4c3 - (9=1)r6c2 - (1=3)r5c3 - r8c3 = (3-4)r8c8 => -4 r8c8; stte

Phil

by **Ngisa** » Tue Feb 21, 2017 11:22 am

Code: Select all: +-------------+-----------+--------------+ | 7 56 2 | 56 3 8 | 4 1 9 | | 3 1469 149 | 7 19 46 | 5 2 8 | | 19 8 f45 | e45 19 2 | 7 36 36 | +-------------+-----------+--------------+ | 6 579 g59 | 28 4 1 | 3 789 27 | | 4 137 13 | 28 6 9 | 128 78 5 | | 2 1-9 8 | 3 7 5 | 169 69 4 | +-------------+-----------+--------------+ | 18 134 7 | 9 2 346 | 68 5 36 | | 89 2 34-9 | d46 5 7 | 689 c34689 1 | | 5 a349 6 | 1 8 a34 | 29 b3479 27 | +-------------+-----------+--------------+

(9=34)r9c26 - (4)r9c8 = r8c8 - r8c4 = r3c4 - (4=5)r3c3 - (5=9)r4c3 => - 9 r6c2, r8c3; stte

Clement

by **eleven** » Tue Feb 21, 2017 8:09 pm

Code: Select all: *--------------------------------------------------* | 7 56 2 | 56 3 8 | 4 1 9 | | 3 1469 a149 | 7 19 46 | 5 2 8 | | 19 8 a#45 | #45 19 2 | 7 36 36 | |----------------+---------------+-----------------| | 6 579 b59 | 28 4 1 | 3 789 27 | | 4 137 b13 | 28 6 9 | 128 78 5 | | 2 b19 8 | 3 7 5 | 169 69 4 | |----------------+---------------+-----------------| | 18 134 7 | 9 2 346 | 68 5 36 | | 89 2 #349 | #46 5 7 | 689 3689-4 1 | | 5 349 6 | 1 8 34 | 29 3479 27 | *--------------------------------------------------*

X-wing 4r38c34 = 45r23c3-(5=39)r45c3,r6c2-(3|9r8c3) => -4r8c8
or
(4=3|9)r8c3-(39=5)r45c3,r6c2-(5=4)r3c3-r3c4=r8c4 => -4r8c8
resp.

by **JC Van Hay** » Tue Feb 21, 2017 9:58 pm

Code: Select all: +-----------------+---------------+--------------------+ | 7 56 2 | 56 3 8 | 4 1 9 | | 3 1469 149 | 7 19 46 | 5 2 8 | | 19 8 45 | 45 19 2 | 7 36 36 | +-----------------+---------------+--------------------+ | 6 57(9) 5(9) | (28) 4 1 | 3 7(89) 7(2) | | 4 137 13 | 28 6 9 | 128 78 5 | | 2 1-9 8 | 3 7 5 | 169 69 4 | +-----------------+---------------+--------------------+ | 18 134 7 | 9 2 346 | 68 5 36 | | 89 2 349 | 46 5 7 | 689 34689 1 | | 5 34(9) 6 | 1 8 34 | (29) 347(9) 7(2) | +-----------------+---------------+--------------------+

[XWing(9r9c2*8, 9r4c238)=*(9-2)r9c7=2r9c9-2r4c9=HP(28-9)r4c48=9r4c23]-(9=1)r6c2; stte

by **bat999** » Tue Feb 21, 2017 11:22 pm

Code: Select all: .------------------.---------------.-----------------. | 7 56 2 | 56 3 8 | 4 1 9 | | 3 1469 149 | 7 19 46 | 5 2 8 | | 19 8 a45 | b45 19 2 | 7 36 36 | :------------------+---------------+-----------------: | 6 57-9 a59 | 28 4 1 | 3 789 27 | | 4 137 3 | 28 6 9 | 128 78 5 | | 2 1-9 8 | 3 7 5 | 169 69 4 | :------------------+---------------+-----------------: | 18 134 7 | 9 2 346 | 68 5 36 | | 89 2 34-9 | c46 5 7 | 689 d34689 1 | | 5 f349 6 | 1 8 f34 | 29 e3479 27 | '------------------'---------------'-----------------'

(9=4)r34c3 - r3c4 = r8c4 - r8c8 = r9c8 - (4=9)r9c26 => -9 r46c2,r8c3; stte

February 21, 2017