The New Sudoku Players' Forum

by **urhegyi** » Sun Apr 16, 2023 9:59 pm

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

by **jco** » Sun Apr 16, 2023 11:16 pm

After basics

Code: Select all: .--------------------------------------------------------------------. | 6 b1458 c459 | 348 19 2 | 39 7 1349 | | 14789 2 479 | 3478 19 78 | 6 5 1349 | | 1479 14 3 | 47 5 6 | 8 2 149 | |----------------------+----------------------+----------------------| | 149 134 49 | 2 6 5 | 39 8 7 | | 2 7 6 | 9 8 3 | 4 1 5 | | 59 35 8 | 1 7 4 | 2 6 39 | |----------------------+----------------------+----------------------| | 3 6 2 | 5 4 1 | 7 9 8 | | 57-8 9 d57 | 6 3 e78 | 1 4 2 | | 478 a48 1 | 7-8 2 9 | 5 3 6 | '--------------------------------------------------------------------'

(8)r9c2 = (8-5)r1c2 = (5)r1c3 - (5=7)r8c3 - (7=8)r8c6 => -8 r9c4, r8c1; ste

by **Leren** » Mon Apr 17, 2023 1:08 am

Code: Select all: *---------------------------------------------* | 6 d1458 c459 |e348 19 2 | 39 7 1349 | | 14789 2 479 | 3478 19 7-8 | 6 5 1349 | | 1479 14 3 | 47 5 6 | 8 2 149 | |------------------+--------------+-----------| | 149 134 49 | 2 6 5 | 39 8 7 | | 2 7 6 | 9 8 3 | 4 1 5 | | 59 35 8 | 1 7 4 | 2 6 39 | |------------------+--------------+-----------| | 3 6 2 | 5 4 1 | 7 9 8 | | 578 9 b57 | 6 3 a78 | 1 4 2 | | 478 48 1 | 7-8 2 9 | 5 3 6 | *---------------------------------------------*

(8=7) r8c6 - (7=5) r8c3 - r1c3 = (5-8) r1c2 = (8) r1c4 => - 8 r2c6, r9c4; stte

Leren

2 x-wings, 3 xy-wings, 1 xyz-wing in the same puzzle