The New Sudoku Players' Forum

by **ArkieTech** » Sat Mar 10, 2018 12:12 pm

Code: Select all: *-----------* |.9.|...|45.| |..8|.7.|...| |..4|5..|...| |---+---+---| |..2|...|.8.| |8..|..6|..7| |...|.23|.9.| |---+---+---| |1.9|...|6..| |..3|..1|5..| |6..|.8.|...| *-----------*

by **Cenoman** » Sat Mar 10, 2018 5:34 pm

Code: Select all: +------------------+-------------------+------------------+ | 237 9 67 | C126 36 8 | 4 5 B123 | | a235* b15 8 | 2-1 7 4 | 9 6 A123* | | 23* 16 4 | 5 369 29 | 8 7 A123* | +------------------+-------------------+------------------+ | 9 56 2 | 4 1 7 | 3 8 56 | | 8 3 1 | 9 5 6 | 2 4 7 | | 457 47 67 | 8 2 3 | 1 9 56 | +------------------+-------------------+------------------+ | 1 27 9 | 27 4 5 | 6 3 8 | | 47 8 3 | 67 69 1 | 5 2 49 | | 6 24 5 | 3 8 29 | 7 1 49 | +------------------+-------------------+------------------+

UR(23)r23c19 using internals
(5)r2c1 - (5=1)r2c2
(1)r23c9 - r1c9 = (1)r1c4
=> -1 r2c4; stte

by **Sudtyro2** » Sat Mar 10, 2018 5:45 pm

Code: Select all: +---------------+----------------+--------------+ | 237 9 7-6 | *126 36 8 | 4 5 *123 | | 235 15 8 | *12 7 4 | 9 6 *123 | | 23 16B 4 | 5 369 b29 | 8 7 a123A | +---------------+----------------+--------------+ | 9 56 2 | 4 1 7 | 3 8 56 | | 8 3 1 | 9 5 6 | 2 4 7 | | 457 e47 e67 | 8 2 3 | 1 9 56 | +---------------+----------------+--------------+ | 1 27 9 | 27 4 5 | 6 3 8 | | 47 8 3 | 67 69 1 | 5 2 49 | | 6 d24 5 | 3 8 c29 | 7 1 49 | +---------------+----------------+--------------+

Nice one, Cenoman. Now, here's the hard way...
Almost UR(12)r12c49, using internal 6r1c4 and box externals (12)r3c9.

Code: Select all: 2r3c9 - r3c6 = r9c6 - (2=4)r9c2 - (4=76)r6c23 - 6r1c3; 1r3c9 - (1=6)r3c2 - 6r1c3; 6r1c4 - 6r1c3; stte

SteveC

by **Marty R.** » Sat Mar 10, 2018 6:37 pm

Code: Select all: ┌─────────────────┬─────────────────┬─────────────────┐ │ 237 9 67 │ 126 36 8 │ 4 5 123 │ │ │ │ │ │ 235 15 8 │ 12 7 4 │ 9 6 123 │ │ │ │ │ │ 23 16 4 │ 5 369 29 │ 8 7 123 │ ├─────────────────┼─────────────────┼─────────────────┤ │ 9 56 2 │ 4 1 7 │ 3 8 56 │ │ │ │ │ │ 8 3 1 │ 9 5 6 │ 2 4 7 │ │ │ │ │ │ 457 47 67 │ 8 2 3 │ 1 9 56 │ ├─────────────────┼─────────────────┼─────────────────┤ │ 1 27 9 │ 27 4 5 │ 6 3 8 │ │ │ │ │ │ 47 8 3 │ 67 69 1 │ 5 2 49 │ │ │ │ │ │ 6 24 5 │ 3 8 29 │ 7 1 49 │ └─────────────────┴─────────────────┴─────────────────┘

Kite (6) hinged b2
6r3c2=r8c4
6r3c2-(6=7)r1c3
6r8c4-(6=497)r8c591-r1c1=r1c3=> 7r1c3

by **pjb** » Sat Mar 10, 2018 9:35 pm

Code: Select all: 23-7 9 a67 |b126 36 8 | 4 5 123 235 15 8 | 12 7 4 | 9 6 123 23 16 4 | 5 369 29 | 8 7 123 ------------------------+----------------------+--------------------- 9 56 2 | 4 1 7 | 3 8 56 8 3 1 | 9 5 6 | 2 4 7 457 47 67 | 8 2 3 | 1 9 56 ------------------------+----------------------+--------------------- 1 27 9 | 27 4 5 | 6 3 8 d47 8 3 |c67 69 1 | 5 2 49 6 24 5 | 3 8 29 | 7 1 49

(7=6)r1c3 - r1c4 = (6-7)r8c4 = r8c1 => -7, r1c1; stte

Phil

by **SteveG48** » Sun Mar 11, 2018 2:42 am

Code: Select all: *--------------------------------------------------* | 237 9 7-6 |a126 36 8 | 4 5 123 | | 235 15 8 |a12 7 4 | 9 6 123 | | 23 16 4 | 5 369 29 | 8 7 123 | *----------------+----------------+----------------| | 9 56 2 | 4 1 7 | 3 8 56 | | 8 3 1 | 9 5 6 | 2 4 7 | | 457 c47 c67 | 8 2 3 | 1 9 56 | *----------------+----------------+----------------| | 1 b27 9 |a27 4 5 | 6 3 8 | | 47 8 3 | 67 69 1 | 5 2 49 | | 6 24 5 | 3 8 29 | 7 1 49 | *--------------------------------------------------*

(6=127)r127c4 - 7r7c2 = (67)r6c23 => -6 r1c3 ; stte

March 10, 2018