The New Sudoku Players' Forum

by **ArkieTech** » Fri Mar 30, 2018 1:24 pm

Code: Select all: *-----------* |..4|.31|.5.| |...|...|1..| |.62|7..|.9.| |---+---+---| |6.3|8..|4..| |.9.|.4.|.8.| |..8|..2|6.5| |---+---+---| |.1.|..8|53.| |..6|...|...| |.4.|12.|7..| *-----------*

by **Marty R.** » Fri Mar 30, 2018 2:52 pm

Code: Select all: ┌────────────────────┬────────────────────┬────────────────────┐ │ 79 8 4 │ 69 3 1 │ 2 5 67 │ │ │ │ │ │ 3579 35 579 │ 2 8 69 │ 1 47 467 │ │ │ │ │ │ 1 6 2 │ 7 5 4 │ 8 9 3 │ ├────────────────────┼────────────────────┼────────────────────┤ │ 6 25 3 │ 8 1 57 │ 4 27 9 │ │ │ │ │ │ 25 9 1 │ 56 4 567 │ 3 8 27 │ │ │ │ │ │ 4 7 8 │ 3 9 2 │ 6 1 5 │ ├────────────────────┼────────────────────┼────────────────────┤ │ 279 1 79 │ 49 6 8 │ 5 3 24 │ │ │ │ │ │ 8 235 6 │ 45 7 35 │ 9 24 1 │ │ │ │ │ │ 359 4 59 │ 1 2 359 │ 7 6 8 │ └────────────────────┴────────────────────┴────────────────────┘

Kite (5) hinged b5
5r4c2=r8c4-(5=234)r8c268-(4=72)r24c8-(2=5)r4c2=> 5r4c2

by **Ngisa** » Fri Mar 30, 2018 4:13 pm

Code: Select all: +-----------------------+------------------+------------------+ |a79 8 4 | 69 3 1 | 2 5 6-7 | |b3579 35 b579 | 2 8 c69 | 1 47 467 | | 1 6 2 | 7 5 4 | 8 9 3 | +-----------------------+------------------+------------------+ | 6 25 3 | 8 1 d57 | 4 e27 9 | | 25 9 1 | 56 4 567 | 3 8 f27 | | 4 7 8 | 3 9 2 | 6 1 5 | +-----------------------+------------------+------------------+ | 279 1 79 | 49 6 8 | 5 3 24 | | 8 235 6 | 45 7 d35 | 9 24 1 | | 359 4 59 | 1 2 d359 | 7 6 8 | +-----------------------+------------------+------------------+

(7=9)r1c1 - r2c13 = r2c6 - (9=7)r489c6 - r4c8 = (7)r5c9 => -7 r1c9; stte

Clement

by **SteveG48** » Fri Mar 30, 2018 6:02 pm

Code: Select all: *-----------------------------------------------------------* | 79 8 4 | 69 3 1 | 2 5 67 | | 3579 35 579 | 2 8 69 | 1 47 467 | | 1 6 2 | 7 5 4 | 8 9 3 | *-------------------+-------------------+-------------------| | 6 5-2 3 | 8 1 a57 | 4 a27 9 | | 25 9 1 | 56 4 567 | 3 8 27 | | 4 7 8 | 3 9 2 | 6 1 5 | *-------------------+-------------------+-------------------| | 279 1 79 | 49 6 8 | 5 3 24 | | 8 c235 6 | 45 7 b35 | 9 4-2 1 | | 359 4 c59 | 1 2 b359 | 7 6 8 | *-----------------------------------------------------------*

(2=57)r4c68 - (5=39)r89c6 - (3|9=25)b7c59 => -2 r4c2,r8c8 ; stte

by **Marty R.** » Fri Mar 30, 2018 6:42 pm

Code: Select all: +--------------------------------------------------------------+ ¦ 79 8 4 ¦ 69 3 1 ¦ 2 5 67 ¦ ¦ ¦ ¦ ¦ ¦ 3579 35 579 ¦ 2 8 69 ¦ 1 47 467 ¦ ¦ ¦ ¦ ¦ ¦ 1 6 2 ¦ 7 5 4 ¦ 8 9 3 ¦ +--------------------+--------------------+--------------------¦ ¦ 6 25 3 ¦ 8 1 57 ¦ 4 27 9 ¦ ¦ ¦ ¦ ¦ ¦ 25 9 1 ¦ 56 4 567 ¦ 3 8 27 ¦ ¦ ¦ ¦ ¦ ¦ 4 7 8 ¦ 3 9 2 ¦ 6 1 5 ¦ +--------------------+--------------------+--------------------¦ ¦ 279 1 79 ¦ 49 6 8 ¦ 5 3 24 ¦ ¦ ¦ ¦ ¦ ¦ 8 235 6 ¦ 45 7 35 ¦ 9 24 1 ¦ ¦ ¦ ¦ ¦ ¦ 359 4 59 ¦ 1 2 359 ¦ 7 6 8 ¦ +--------------------------------------------------------------+

Alternate: DP (79)r27c13 externals
7r1c1=9r1c1
7r1c1-(7=6)r1c9-(6=94)r17c4
9r1c1-(9=67)r1c49-(7=42)r28c8-(2=75)r4c86-(5=694)r157c4=> 4r7c4

by **Cenoman** » Fri Mar 30, 2018 8:04 pm

Code: Select all: +---------------------+------------------+------------------+ | 79 8 4 | 9-6 3 1 | 2 5 a67 | | 3579 35 579 | 2 8 69 | 1 47 467 | | 1 6 2 | 7 5 4 | 8 9 3 | +---------------------+------------------+------------------+ | 6 25 3 | 8 1 57 | 4 27 9 | | c25 9 1 | d56 4 567 | 3 8 b27 | | 4 7 8 | 3 9 2 | 6 1 5 | +---------------------+------------------+------------------+ | 279 1 79 | 49 6 8 | 5 3 24 | | 8 235 6 | 45 7 35 | 9 24 1 | | 359 4 59 | 1 2 359 | 7 6 8 | +---------------------+------------------+------------------+

XY-chain (6=7)r1c9 - (7=2)r5c9 - (2=5)r5c1 - (5=6)r5c4 => -6 r1c4; stte

by **Sudtyro2** » Fri Mar 30, 2018 8:07 pm

Code: Select all: +-----------------+---------------+--------------+ | 79 8 4 | 69 3 1 | 2 5 67 | | 3579 c35# 579 | 2 8 69 | 1 47 467 | | 1 6 2 | 7 5 4 | 8 9 3 | +-----------------+---------------+--------------+ | 6 d25* 3 | 8 1 57* | 4 27 9 | |e25 9 1 | 6-5* 4 567# | 3 8 27 | | 4 7 8 | 3 9 2 | 6 1 5 | +-----------------+---------------+--------------+ | 279 1 79 | 49 6 8 | 5 3 24 | | 8 b235* 6 | 45* 7 a35# | 9 24 1 | | 359 4 59 | 1 2 359 | 7 6 8 | +-----------------+---------------+--------------+

In 5s, a 5-link Oddagon(*), having three Guardians(#):

Code: Select all: (5-3)r8c6 = r8c2 - (3=5)r2c2 - r4c2 = r5c1 - 5r5c4; abcde 5r2c2 - r4c2 = r5c1 - 5r5c4; 5r5c6 - 5r5c4; stte

SteveC

by **pjb** » Fri Mar 30, 2018 11:25 pm

Code: Select all: 79 8 4 | 69 3 1 | 2 5 67 3579 35 579 | 2 8 69 | 1 47 467 1 6 2 | 7 5 4 | 8 9 3 ------------------------+----------------------+--------------------- 6 25 3 | 8 1 a57 | 4 b27 9 25 9 1 | 6-5 4 567 | 3 8 27 4 7 8 | 3 9 2 | 6 1 5 ------------------------+----------------------+--------------------- 279 1 79 | 49 6 8 | 5 3 24 8 235 6 |d45 7 3-5 | 9 c24 1 359 4 59 | 1 2 39-5 | 7 6 8

(5=7)r4c6 - (7=2)r4c8 - (2=4)r8c8 - (4=5)r8c4 => -5 r89c6, r5c4; stte

Phil

March 30, 2018