The New Sudoku Players' Forum

by **tarek** » Thu Jan 02, 2020 7:34 am

Code: Select all: +-------+-------+-------+ | 8 . . | . 1 . | . 7 . | | . . . | . . 9 | . . 4 | | . . 5 | 6 . . | . . . | +-------+-------+-------+ | . . . | . 2 . | . 3 . | | 6 7 . | . . 4 | . . 8 | | . . 1 | . . . | 9 . . | +-------+-------+-------+ | . 6 . | 8 . . | 4 . . | | . 5 2 | . 9 . | . . . | | 3 . . | . 7 . | . . 6 | +-------+-------+-------+ 8...1..7......9..4..56.........2..3.67...4..8..1...9...6.8..4...52.9....3...7...6

by **eleven** » Thu Jan 02, 2020 12:18 pm

Code: Select all: *---------------------------------------------------------------* | 8 4 6 | 235 1 b235 | 35 7 9 | | 12 d12 37 | 357 8 9 | 35 6 4 | | c79 c39 5 | 6 4 b37 | 8 12 12 | |-------------------+---------------------+---------------------| | 459 89 48 | 1579 2 1578 | 6 3 157 | | 6 7 39 | 1359 35 4 | 12 125 8 | | 25 c238 1 | 357 6 b3578 | 9 4 57 | |-------------------+---------------------+---------------------| | 179 6 79 | 8 35 a1235 | 4 1259 1235 | | 14 5 2 | 134 9 6 | 7 8 13 | | 3 89-1 48 |a#12+45 7 a#12+5 | #12 1259 6 | *---------------------------------------------------------------*

12r9c467 = 45r9c46 & 2r7c6 - (2|5=378)r136c6 - (7|8=932)r3c12,r5c2 - (2=1)r2c2 => -1r9c2, stte

by **Mauriès Robert** » Thu Jan 02, 2020 9:07 pm

Hi,
Here's my resolution with TDP to eliminate 1r9c2.
P'(1r9c678) : -1r9c678-> ---- ->8r9c2 (see diagram) => -1r9c2.

Code: Select all: -1r9c678->2r9c7-------> -------------------8r6c6-> \ \ \ / / / \ \-------->5r9c6-->\-->3r1c6->7r3c6->3r3c2------->2r6c2->1r2c2->8r9c2 \ \ / \ \ / ------------------>9r9c8------------------------------->

Robert

January 2, 2020