The New Sudoku Players' Forum

by **tarek** » Tue Mar 10, 2020 8:26 pm

Code: Select all: +-------+-------+-------+ | 8 . . | . . 7 | . . . | | . 3 . | 5 4 . | 9 . . | | . . 7 | . . . | . 3 1 | +-------+-------+-------+ | . . 9 | . . 6 | . . 4 | | . . . | . 3 . | . . . | | 3 . . | 2 . . | 7 . . | +-------+-------+-------+ | 2 1 . | . . . | 5 . . | | . . 8 | . 5 4 | . 9 . | | . . . | 8 . . | . . 6 | +-------+-------+-------+ 8....7....3.54.9....7....31..9..6..4....3....3..2..7..21....5....8.54.9....8....6

by **Cenoman** » Tue Mar 10, 2020 10:08 pm

Code: Select all: +--------------------+-----------------+------------------+ | 8 9 16 | 3 16 7 | 4 5 2 | | 16 3 2 | 5 4 18* | 9 68* 7 | | 4 5 7 | 9 68* 2 | 68 3 1 | +--------------------+-----------------+------------------+ | 5 b28 9 | 7 18* 6 | 3 128* 4 | | 167 2678 16 | 4 3 5 | d68 c268 9 | | 3 a68 4 | 2 9 18 | 7 c18-6 5 | +--------------------+-----------------+------------------+ | 2 1 3 | 6 7 9 | 5 4 8 | | 67 67 8 | 1 5 4 | 2 9 3 | | 9 4 5 | 8 2 3 | 1 7 6 | +--------------------+-----------------+------------------+

5-link oddagon (8)r24, c58, b2 with three guardians:
(6=8)r6c2 - (8)r4c2 == (8)r56c8 - (8=6)r5c7 => -6 r6c8; ste

by **SteveG48** » Tue Mar 10, 2020 10:58 pm

Code: Select all: *-----------------------------------------------------------* | 8 9 d16 | 3 16 7 | 4 5 2 | |e16 3 2 | 5 4 e18 | 9 6-8 7 | | 4 5 7 | 9 68 2 | 68 3 1 | *-------------------+-------------------+-------------------| | 5 28 9 | 7 18 6 | 3 a128 4 | |b167 b2678 c16 | 4 3 5 |b68 b268 9 | | 3 68 4 | 2 9 18 | 7 a168 5 | *-------------------+-------------------+-------------------| | 2 1 3 | 6 7 9 | 5 4 8 | | 67 67 8 | 1 5 4 | 2 9 3 | | 9 4 5 | 8 2 3 | 1 7 6 | *-----------------------------------------------------------*

8r46c8 =BUG+5= 6r5c128|(86)r5c27 - 6r5c3 = r1c3 - (6=18)r2c16 => -8 r2c8 ; stte

by **pjb** » Tue Mar 10, 2020 11:02 pm

Code: Select all: 8 9 16 | 3 16 7 | 4 5 2 16 3 2 | 5 4 b18 | 9 a68 7 4 5 7 | 9 68 2 | 68 3 1 ------------------------+----------------------+--------------------- 5 28 9 | 7 18 6 | 3 128 4 167 2678 16 | 4 3 5 | 68 268 9 3 68 4 | 2 9 c18 | 7 d18-6 5 ------------------------+----------------------+--------------------- 2 1 3 | 6 7 9 | 5 4 8 67 67 8 | 1 5 4 | 2 9 3 9 4 5 | 8 2 3 | 1 7 6

(6=8)r2c8 - (8=1)r2c6 - r6c6 = r6c8 => -6 r6c8; stte

Phil

by **Leren** » Wed Mar 11, 2020 8:36 am

Code: Select all: *--------------------------------------* | 8 9 16 | 3 16 7 | 4 5 2 | | 16 3 2 | 5 4 b18 | 9 a68 7 | | 4 5 7 | 9 68 2 | 68 3 1 | |--------------+----------+------------| | 5 28 9 | 7 18 6 | 3 128 4 | | 167 2678 16 | 4 3 5 | 68 268 9 | | 3 d68 4 | 2 9 c18 | 7 18-6 5 | |--------------+----------+------------| | 2 1 3 | 6 7 9 | 5 4 8 | | 67 67 8 | 1 5 4 | 2 9 3 | | 9 4 5 | 8 2 3 | 1 7 6 | *--------------------------------------*

W Wing : (6=8) r2c8 - r2c6 = r6c6 - (8=6) r6c2 => - 6 r6c8; stte

Leren

by **Ngisa** » Wed Mar 11, 2020 11:20 am

Code: Select all: +---------------------+-------------------+------------------+ | 8 9 6-1| 3 a16 7 | 4 5 2 | | 16 3 2 | 5 4 18 | 9 68 7 | | 4 5 7 | 9 68 2 | 68 3 1 | +---------------------+-------------------+------------------+ | 5 28 9 | 7 b18 6 | 3 c128 4 | | 167 2678 f16 | 4 3 5 | 68 268 9 | | 3 e68 4 | 2 9 18 | 7 d168 5 | +---------------------+-------------------+------------------+ | 2 1 3 | 6 7 9 | 5 4 8 | | 67 67 8 | 1 5 4 | 2 9 3 | | 9 4 5 | 8 2 3 | 1 7 6 | +---------------------+-------------------+------------------+

(1)r1c5 = r4c5 - r4c8 = (1-6)r6c8 = r6c2 - (6=1)r5c3 => - 1r1c3; stte

Clement

by **Mauriès Robert** » Wed Mar 11, 2020 3:47 pm

Hi all,
Resolution with an anti-track from 6r6c2 :
P'(6r6c2): -6r6c2->8r6c2->1r6c6->8r2c6->6r2c8 => -6r6c8, stte.
Robert

March 10, 2020