The New Sudoku Players' Forum

by **tarek** » Tue Jan 21, 2020 1:51 pm

Code: Select all: +-------+-------+-------+ | . . . | . . 9 | 1 5 . | | 2 . . | 3 . . | . . . | | 6 . . | . 5 . | . . . | +-------+-------+-------+ | 4 . . | 9 . 5 | . 2 . | | . . 9 | . . . | 6 . . | | . 2 . | 7 . 4 | . . 8 | +-------+-------+-------+ | . . . | . 3 . | . . 1 | | . . . | . . 6 | . . 2 | | . 8 7 | 4 . . | . . . | +-------+-------+-------+ .....915.2..3.....6...5....4..9.5.2...9...6...2.7.4..8....3...1.....6..2.874.....

by **SteveG48** » Tue Jan 21, 2020 2:41 pm

Code: Select all: *-----------------------------------------------------------* | 78 347 348 | 6 2 9 | 1 5 347 | | 2 579 15 | 3 4 17 | 78 c68 679 | | 6 3479 134 | 8 5 17 | 2 3-4 3479 | *-------------------+-------------------+-------------------| | 4 1 68 | 9 68 5 | 37 2 37 | | 78 57 9 | 2 18 3 | 6 ac14 5-4 | | 35 2 356 | 7 16 4 |a59 ac19 8 | *-------------------+-------------------+-------------------| | 9 6 2 | 5 3 8 | 4 7 1 | | 35 345 345 | 1 7 6 | 89 c89 2 | | 1 8 7 | 4 9 2 |b35 c36 356 | *-----------------------------------------------------------*

(4=195)b6p578 - (5=3)r9c7 - (3=16894)r25689c8 => -4 r3c8,r5c9 ; stte

by **Cenoman** » Tue Jan 21, 2020 3:57 pm

Code: Select all: +--------------------+-----------------+-------------------+ | 78 347 348 | 6 2 9 | 1 5 347 | | 2 579 15 | 3 4 17 | b78 c68 679 | | 6 3479 134 | 8 5 17 | 2 34 3479 | +--------------------+-----------------+-------------------+ | 4 1 68 | 9 68 5 | a37 2 37 | | 78 57 9 | 2 18 3 | 6 14 45 | | 35 2 356 | 7 16 4 | 59 19 8 | +--------------------+-----------------+-------------------+ | 9 6 2 | 5 3 8 | 4 7 1 | | 35 345 345 | 1 7 6 | 89 89 2 | | 1 8 7 | 4 9 2 | 5-3 d36 356 | +--------------------+-----------------+-------------------+

XY-chain (3=7)r4c7 - (7=8)r2c7 - (8=6)r2c8 - (6=3)r9c8 => -3 r9c7; ste

by **Ajò Dimonios** » Tue Jan 21, 2020 4:19 pm

Code: Select all: +-------------+---------+--------------+ | 78 347 348 | 6 2 9 | 1 5 347 | | 2 579 15 | 3 4 17 | 78 68 679 | | 6 3479 134 | 8 5 17 | 2 34 3479 | +-------------+---------+--------------+ | 4 1 68 | 9 68 5 | 37 2 37 | | 78 57 9 | 2 18 3 | 6 14 45 | | 35 2 356 | 7 16 4 | 59 19 8 | +-------------+---------+--------------+ | 9 6 2 | 5 3 8 | 4 7 1 | | 35 345 345 | 1 7 6 | 89 89 2 | | 1 8 7 | 4 9 2 | 35 36 356 | +-------------+---------+--------------+

8r8c7=8r8c8-(8=6)r2c8-(6=3)r9c8-3r9c7=3r4c7-(3=7)r4c9-7r4c7=7r2c7=>-8r2c7=>solution

Paolo

by **Leren** » Tue Jan 21, 2020 7:33 pm

Code: Select all: *---------------------------------------* | 78 347 348 | 6 2 9 | 1 5 347 | | 2 579 15 | 3 4 17 | 78 68 679 | | 6 3479 134 | 8 5 17 | 2 f3-4 3479 | |-------------+---------+---------------| | 4 1 68 | 9 68 5 | 37 2 37 | | 78 57 9 | 2 18 3 | 6 a14 b45 | | 35 2 356 | 7 16 4 |c59 19 8 | |-------------+---------+---------------| | 9 6 2 | 5 3 8 | 4 7 1 | | 35 345 345 | 1 7 6 | 89 89 2 | | 1 8 7 | 4 9 2 |d35 e36 356 | *---------------------------------------*

(4) r5c8 = (4-5) r5c9 = r6c7 - (5=3) r9c7 - r9c8 = (3) r3c8 => - 4 r3c8; stte

Leren

by **rjamil** » Wed Jan 22, 2020 6:56 am

Code: Select all: +---------------+-----------+-----------------+ | 78 347 348 | 6 2 9 | 1 5 347 | | 2 579 15 | 3 4 17 | (78) (68) 679 | | 6 3479 134 | 8 5 17 | 2 34 479 | +---------------+-----------+-----------------+ | 4 1 68 | 9 68 5 | (37) 2 37 | | 78 57 9 | 2 18 3 | 6 14 45 | | 35 2 356 | 7 16 4 | 59 19 8 | +---------------+-----------+-----------------+ | 9 6 2 | 5 3 8 | 4 7 1 | | 35 345 345 | 1 7 6 | 89 89 2 | | 1 8 7 | 4 9 2 | 5-3 (36) 356 | +---------------+-----------+-----------------+

Almost Locked Set move: 3678 @ r29c8 r24c7 => -3 @ r9c7; stte

R. Jamil

January 21, 2020