The New Sudoku Players' Forum

by **tarek** » Wed Jan 15, 2020 11:34 am

Code: Select all: +-------+-------+-------+ | . . 6 | . 9 . | 1 3 . | | . . . | . 2 5 | . 9 . | | 1 . 2 | . . 6 | . . . | +-------+-------+-------+ | . . . | . . . | . 8 . | | 8 3 . | . 5 7 | . . . | | . 1 5 | . 8 3 | . . . | +-------+-------+-------+ | 3 . . | . . . | . 6 9 | | 2 4 . | 6 . . | 3 . . | | . . . | . . . | 7 . 4 | +-------+-------+-------+ ..6.9.13.....25.9.1.2..6..........8.83..57....15.83...3......6924.6..3........7.4

by **Ajò Dimonios** » Wed Jan 15, 2020 12:54 pm

Code: Select all: +------------+-------------+------------+ | 45 58 6 | 7 9 48 | 1 3 2 | | 47 78 3 | 1 2 5 | 468 9 68 | | 1 9 2 | 38 34 6 | 48 7 5 | +------------+-------------+------------+ | 79 2 479 | 49 6 1 | 5 8 3 | | 8 3 49 | 249 5 7 | 269 124 16 | | 6 1 5 | 249 8 3 | 29 24 7 | +------------+-------------+------------+ | 3 57 178 | 58 147 248 | 28 6 9 | | 2 4 1789 | 6 17 89 | 3 5 18 | | 59 6 189 | 358 13 289 | 7 12 4 | +------------+-------------+------------+

4r1c1=r1c6-r3c5=r3c7-r2c7=(4-7)r2c1=(7-8)r2c2=8r2c79-8r3c7=8r3c4-(8=5)r7c4-5r7c2=5r1c2 =>-5r1c1=>stte

by **Ngisa** » Wed Jan 15, 2020 1:34 pm

Code: Select all: +--------------------+--------------------+------------------+ |c45 d58 6 | 7 9 c48 | 1 3 2 | | 47 78 3 | 1 2 5 | 468 9 68 | | 1 9 2 | 38 b34 6 |a48 7 5 | +--------------------+--------------------+------------------+ | 79 2 479 | 49 6 1 | 5 8 3 | | 8 3 49 | 249 5 7 | 269 124 16 | | 6 1 5 | 249 8 3 | 29 24 7 | +--------------------+--------------------+------------------+ | 3 e57 178 |e58 147 248 | 2-8 6 9 | | 2 4 1789 | 6 17 89 | 3 5 18 | | 59 6 189 | 358 13 289 | 7 12 4 | +--------------------+--------------------+------------------+

(8=4)r3c7 - r3c5 = (45)r1c61 - (5)r1c2 = (58)r7c24 => - 8r7c7; stte

Clement

by **Cenoman** » Wed Jan 15, 2020 3:05 pm

Code: Select all: +-------------------+--------------------+-------------------+ | 45 a58 6 | 7 9 b48 | 1 3 2 | | 47 78 3 | 1 2 5 | 468 9 68 | | 1 9 2 | c38 34 6 | 48 7 5 | +-------------------+--------------------+-------------------+ | 79 2 479 | 49 6 1 | 5 8 3 | | 8 3 49 | 249 5 7 | 269 124 16 | | 6 1 5 | 249 8 3 | 29 24 7 | +-------------------+--------------------+-------------------+ | 3 7-5 178 | d58 147 248 | 28 6 9 | | 2 4 1789 | 6 17 89 | 3 5 18 | | 59 6 189 | 358 13 289 | 7 12 4 | +-------------------+--------------------+-------------------+

W-wing (5=8)r1c2 - r1c6 = r3c4 - (8=5)r7c4 => -5 r7c2; ste

by **Mauriès Robert** » Wed Jan 15, 2020 3:50 pm

Hi all,
My resolution with TDP and an anti-track.
P'(8r7c4) : -8r7c4->5r7c4->7r7c2->8r2c2->8r3c7 => -8r3c7, stte.
Robert

by **rjamil** » Wed Jan 15, 2020 6:42 pm

Code: Select all: +----------------+----------------+------------------+ | 45 (58) 6 | 7 9 48 | 1 3 2 | | 47 78 3 | 1 2 5 | (468) 9 6[8] | | 1 9 2 | 3-8 34 6 | 4[8] 7 5 | +----------------+----------------+------------------+ | 79 2 479 | 49 6 1 | 5 8 3 | | 8 3 49 | 249 5 7 | 269 124 16 | | 6 1 5 | 249 8 3 | 29 24 7 | +----------------+----------------+------------------+ | 3 (57) 178 | (58) 147 248 | 2[-8] 6 9 | | 2 4 1789 | 6 17 9-8 | (3) 5 1[8] | | 59 6 189 | 358 13 289 | 7 12 4 | +----------------+----------------+------------------+

XY-Wing Transport: 578 @ r7c24 r2c2 Reduced ERI 8 @ b3r2c7 and Reduced[/Minimal] ERI 8 @ b9r8c7 => -8 @ r7c7 r3c4 r8c6; stte

R. Jamil

by **pjb** » Wed Jan 15, 2020 10:16 pm

Code: Select all: 45 b58 6 | 7 9 a48 | 1 3 2 47 78 3 | 1 2 5 | 468 9 68 1 9 2 | 3-8 34 6 | 48 7 5 ------------------------+----------------------+--------------------- 79 2 479 | 49 6 1 | 5 8 3 8 3 49 | 249 5 7 | 269 124 16 6 1 5 | 249 8 3 | 29 24 7 ------------------------+----------------------+--------------------- 3 c57 178 |d58 147 24-8 | 28 6 9 2 4 1789 | 6 17 9-8 | 3 5 18 59 6 189 | 358 13 29-8 | 7 12 4

(8)r1c6 = (8-5)r1c2 = r7c2 - (5=8)r7c4 => -8 r3c4, r789c6; stte

Phil

January 15, 2020