The New Sudoku Players' Forum

by **ArkieTech** » Fri Jan 18, 2019 12:01 pm

Code: Select all: *-----------* |4.1|3..|9..| |.3.|..6|...| |.7.|5..|..1| |---+---+---| |.1.|.3.|..5| |..8|275|1..| |5..|.6.|.8.| |---+---+---| |1..|..3|.6.| |...|6..|.9.| |..9|..7|5.8| *-----------*

by **SpAce** » Fri Jan 18, 2019 12:15 pm

Code: Select all: .------------.---------.--------------------. | 4 5 1 | 3 8 2 | 9 7 6 | | 9 3 2 | 7 1 6 | 8 5 4 | | 8 7 6 | 5 4 9 | 23 23 1 | :------------+---------+--------------------: | 27 1 47 | 9 3 8 | 6 24 5 | | 6 49 8 | 2 7 5 | 1 34 39 | | 5 29 3 | 1 6 4 | 7-2 8 79+(2) | :------------+---------+--------------------: | 1 24 5 | 8 9 3 | 47+(2) 6 7-2 | | 27 8 47 | 6 5 1 | 34+(2) 9 3-2 | | 3 6 9 | 4 2 7 | 5 1 8 | '------------'---------'--------------------'

(2)r6c9 =BUG+3= (2)r78c7 => -2 r6c7,r78c9; stte

by **Ngisa** » Fri Jan 18, 2019 1:49 pm

Code: Select all: +----------------+-------------+-------------------+ | 4 5 1 | 3 8 2 | 9 7 6 | | 9 3 2 | 7 1 6 | 8 5 4 | | 8 7 6 | 5 4 9 | 23 23 1 | +----------------+-------------+-------------------+ | 27 1 47 | 9 3 8 | 6 24 5 | | 6 a49 8 | 2 7 5 | 1 34 a39 | | 5 29 3 | 1 6 4 | 27 8 279 | +----------------+-------------+-------------------+ | 1 2-4 5 | 8 9 3 |d247 6 27 | | 27 8 47 | 6 5 1 |c2347 9 b237 | | 3 6 9 | 4 2 7 | 5 1 8 | +----------------+-------------+-------------------+

(4=93)r5c29 - (3)r8c9 = (3-4)r8c7 = (4)r7c7 => - 4r7c2; stte

Clement

by **SteveG48** » Fri Jan 18, 2019 2:45 pm

Code: Select all: *--------------------------------------------------* | 4 5 1 | 3 8 2 | 9 7 6 | | 9 3 2 | 7 1 6 | 8 5 4 | | 8 7 6 | 5 4 9 | 23 23 1 | *----------------+----------------+----------------| |b27 1 47 | 9 3 8 | 6 24 5 | | 6 49 8 | 2 7 5 | 1 34 39 | | 5 b29 3 | 1 6 4 | 27 8 c279 | *----------------+----------------+----------------| | 1 24 5 | 8 9 3 | 247 6 c27 | |a27 8 47 | 6 5 1 | 234 9 3-2 | | 3 6 9 | 4 2 7 | 5 1 8 | *--------------------------------------------------*

2r8c1 = (29)b4p18 - (9=27)r67c9 => -2 r8c9 ; stte

by **Cenoman** » Fri Jan 18, 2019 4:16 pm

Code: Select all: +-----------------+-----------------+-------------------+ | 4 5 1 | 3 8 2 | 9 7 6 | | 9 3 2 | 7 1 6 | 8 5 4 | | 8 7 6 | 5 4 9 | 23 23 1 | +-----------------+-----------------+-------------------+ | 27 1 47 | 9 3 8 | 6 24 5 | | 6 b49 8 | 2 7 5 | 1 34 c39 | | 5 29 3 | 1 6 4 | 27 8 279 | +-----------------+-----------------+-------------------+ | 1 a24 5 | 8 9 3 | 47-2 6 7-2 | | 7-2 8 47 | 6 5 1 | 234 9 d23 | | 3 6 9 | 4 2 7 | 5 1 8 | +-----------------+-----------------+-------------------+

XY-chain (2=4)r7c2 - (4=9)r5c2 - (9=3)r5c9 - (3=2)r8c2 => -2r8c1, r7c79; ste

by **Sudtyro2** » Fri Jan 18, 2019 5:02 pm

Code: Select all: +--------------+-------------+------------------+ | 4 5 1 | 3 8 2 | 9 7 6 | | 9 3 2 | 7 1 6 | 8 5 4 | | 8 7 6 | 5 4 9 | 3-2* 23* 1 | +--------------+-------------+------------------+ | 27* 1 47 | 9 3 8 | 6 24* 5 | | 6 49 8 | 2 7 5 | 1 34 39 | | 5 29* 3 | 1 6 4 | ad27# 8 c279 | +--------------+-------------+------------------+ | 1 24* 5 | 8 9 3 | 247* 6 b27# | | 27 8 47 | 6 5 1 | a234# 9 23 | | 3 6 9 | 4 2 7 | 5 1 8 | +--------------+-------------+------------------+

In 2s, a 7-link oddagon(*) having three guardians(#):
2r68c7 == (2-7)r7c9 = r6c9 - (7=2)r6c7 => -2r3c7; stte

SteveC

January 18, 2019