The New Sudoku Players' Forum

by **ArkieTech** » Thu Apr 12, 2018 12:55 pm

Code: Select all: *-----------* |...|..4|315| |.6.|8..|...| |...|.1.|.7.| |---+---+---| |...|..8|.47| |3..|...|..1| |25.|7..|...| |---+---+---| |.8.|.6.|...| |...|..2|.8.| |794|3..|...| *-----------*

by **SteveG48** » Thu Apr 12, 2018 2:03 pm

Code: Select all: *--------------------------------------------------* | 8 7 9 | 6 2 4 | 3 1 5 | | 15 6 135 | 8 57 37 | 24 29 249 | | 4 2 35 | 59 1 39 | 6 7 8 | *----------------+----------------+----------------| | 9 1 6 | 25 3 8 |b25 4 7 | | 3 4 7 | 259 a59 6 | 8 a25 1 | | 2 5 8 | 7 4 1 | 9 36 36 | *----------------+----------------+----------------| | 15 8 2 | 14 6 79 |c457 359 349 | | 6 3 15 | 14 7-9 2 |c457 8 c49 | | 7 9 4 | 3 8 5 | 1 26 26 | *--------------------------------------------------*

(9=25)r5c58 - (2=5)r4c7 - (5=479)b9p146 => -9 r8c5 ; stte

by **Ngisa** » Thu Apr 12, 2018 2:52 pm

Code: Select all: +------------------+-------------------+---------------------+ | 8 7 9 | 6 2 4 | 3 1 5 | | 15 6 135 | 8 57 37 |c24 29 b249 | | 4 2 35 | 59 1 39 | 6 7 8 | +------------------+-------------------+---------------------+ | 9 1 6 |e25 3 8 |d25 4 7 | | 3 4 7 | 259 f59 6 | 8 25 1 | | 2 5 8 | 7 4 1 | 9 36 36 | +------------------+-------------------+---------------------+ | 15 8 2 | 14 6 79 | 457 359 349 | | 6 3 15 | 14 7-9 2 | 457 8 a49 | | 7 9 4 | 3 8 5 | 1 26 26 | +------------------+-------------------+---------------------+

(9=4) - r2c9 = (4-2)r2c7 = r4c7 - (2=5)r4c4 - (5=9)r5c5 => - 9r8c5; stte

Clement

by **Cenoman** » Thu Apr 12, 2018 3:01 pm

Code: Select all: +------------------+------------------+--------------------+ | 8 7 9 | 6 2 4 | 3 1 5 | | 15 6 135 | 8 57 37 | 24 29* a249* | | 4 2 35 | 59 1 39 | 6 7 8 | +------------------+------------------+--------------------+ | 9 1 6 | 25 3 8 | 25 4 7 | | 3 4 7 | 259 59 6 | 8 25 1 | | 2 5 8 | 7 4 1 | 9 36* 36* | +------------------+------------------+--------------------+ | 15 8 2 | 14 6 79 | 457 359* 349* | | 6 3 15 | 14 79 2 | 457 8 b9-4 | | 7 9 4 | 3 8 5 | 1 26* 26* | +------------------+------------------+--------------------+

DP(2369)r2679c89 using mixed internal-external (4)r2c9==(9)r8c9 =>-4r8c9; stte

by **Marty R.** » Thu Apr 12, 2018 6:30 pm

Code: Select all: ┌─────────────────┬─────────────────┬─────────────────┐ │ 8 7 9 │ 6 2 4 │ 3 1 5 │ │ │ │ │ │ 15 6 135 │ 8 57 37 │ 24 29 249 │ │ │ │ │ │ 4 2 35 │ 59 1 39 │ 6 7 8 │ ├─────────────────┼─────────────────┼─────────────────┤ │ 9 1 6 │ 25 3 8 │ 25 4 7 │ │ │ │ │ │ 3 4 7 │ 259 59 6 │ 8 25 1 │ │ │ │ │ │ 2 5 8 │ 7 4 1 │ 9 36 36 │ ├─────────────────┼─────────────────┼─────────────────┤ │ 15 8 2 │ 14 6 79 │ 457 359 349 │ │ │ │ │ │ 6 3 15 │ 14 79 2 │ 457 8 49 │ │ │ │ │ │ 7 9 4 │ 3 8 5 │ 1 26 26 │ └─────────────────┴─────────────────┴─────────────────┘

Kite (5) hinged b1
5r7c1=r3c4
5r7c1-(5=149)r8c349
5r3c4-(5=2)r4c4-r4c7=r2c7-(2=94)r2c89-(4=9)r8c9=> 9r8c9

by **pjb** » Fri Apr 13, 2018 12:43 am

Code: Select all: 8 7 9 | 6 2 4 | 3 1 5 15 6 135 | 8 57 37 | 24 29 249 4 2 35 | 59 1 39 | 6 7 8 ------------------------+----------------------+--------------------- 9 1 6 |c25 3 8 |a25 4 7 3 4 7 | 259 d59 6 | 8 25 1 2 5 8 | 7 4 1 | 9 36 36 ------------------------+----------------------+--------------------- 15 8 2 | 14 6 79* |a457* 359 349 6 3 15 | 14 7-9 2 | 457 8 49* 7 9 4 | 3 8 5 | 1 26 26

Almost xy-wing at r8c9, r7c67 : (5)r7c7 - (5=2)r4c7 - (2=5)r4c4 - (5=9)r5c5, => -9 r8c5; stte

Phil

April 12, 2018