The New Sudoku Players' Forum

by **eleven** » Mon Mar 20, 2017 7:02 am

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

by **Leren** » Mon Mar 20, 2017 8:45 am

Code: Select all: *--------------------------------------------------------------* | 8 1 4 | 5 2 7 | 6 39 39 | | 56 56 7 | 9 8 3 | 14 14 2 | | 2 3 9 | 146 c46 16 | 8 7 5 | |--------------------+--------------------+--------------------| | 3 8 5 | 12 c49 12 | 7 6 49 | | 4 a79 6 | 38 3-79 5 | 2 a89 1 | | 9-7 2 1 | 468 c4679 689 | 3 5 489 | |--------------------+--------------------+--------------------| | 15679 4 3 | 268 c569 2689 |b15 b128 678 | | 569 569 2 | 7 1 689 | 45 348 368 | | 1567 567 8 | 236 356 4 | 9 b12 67 | *--------------------------------------------------------------*

2 Pincer ALS XY Wing: (79=8) r5c28 - (8=5) r7c78, r9c8 - (5=79) r3467c5 => - 79 r5c5, - 7 r6c1; stte

Leren

by **JC Van Hay** » Mon Mar 20, 2017 1:37 pm

Code: Select all: +---------------+-----------------+--------------+ | 8 1 4 | 5 2 7 | 6 39 39 | | 56 56 7 | 9 8 3 | 14 14 2 | | 2 3 9 | 146 46 16 | 8 7 5 | +---------------+-----------------+--------------+ | 3 8 5 | 12 49 12 | 7 6 49 | | 4 79 6 | 38 379 5 | 2 89 1 | | 79 2 1 | 468 4679 689 | 3 5 489 | +---------------+-----------------+--------------+ | 15679 4 3 | 268 569 2689 | 15 128 678 | | 569 569 2 | 7 1 689 | 45 348 368 | | 1567 567 8 | 236 356 4 | 9 12 67 | +---------------+-----------------+--------------+

C7 -> r5c4=8; stte

by **eleven** » Mon Mar 20, 2017 5:23 pm

JC Van Hay wrote:C7 -> r5c4=8; stte

Is this meant as a hint, how an elimination/placement could be found ?
And why not say R5C2 or R7C7 or B8 -> r5c5=3 ?

by **Cenoman** » Mon Mar 20, 2017 10:30 pm

Code: Select all: +---------------------+----------------------+-------------------+ | 8 1 4 | 5 2 7 | 6 39 39 | | 56 56 7 | 9 8 3 | 14 14 2 | | 2 3 9 | 146 46 16 | 8 7 5 | +---------------------+----------------------+-------------------+ | 3 8 5 | 12 49 12 | 7 6 49 | | 4 e79 6 | 38 e379 5 | 2 d89 1 | | 79 2 1 | 468 4679 689 | 3 5 489 | +---------------------+----------------------+-------------------+ | 15679 4 3 | 268 b569 2689 | c15 d128 678 | | 569 569 2 | 7 1 689 | 45 348 368 | | 1567 567 8 | 236 a56-3 4 | 9 d12 67 | +---------------------+----------------------+-------------------+

(5)r9c5 = r7c5 - (5=1)r7c7 - (1=9)r579c8 - (9=3)r5c25 => -3 r9c5; stte

Cenoman

Additive 5