The New Sudoku Players' Forum

by **eleven** » Sun Jul 30, 2017 3:38 pm

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

by **JC Van Hay** » Sun Jul 30, 2017 7:11 pm

Code: Select all: +--------------------+----------------------+------------------+ | 47 2 38 | 34678 3479 34678 | 1 5 689 | | 6 79 38 | 5 1 378 | 24 24 89 | | 14 59 15 | 2468 249 2468 | 3 7 689 | +--------------------+----------------------+------------------+ | 378 4 569 | 1367 357 13567 | 5679 18 2 | | (237) 1 2569 | 2367 8 23567 | 5679 6-3 4 | | 278-3 (57) (256) | 123467 23457 9 | (567) 18 (35) | +--------------------+----------------------+------------------+ | 5 6 4 | 1237 237 1237 | 8 9 13 | | 9 38 7 | 1348 345 13458 | 26 26 135 | | 12 38 12 | 9 6 358 | 45 34 7 | +--------------------+----------------------+------------------+ 3r6c9 5r6c9 5r6c2 7r6c2 5r6c7 7r6c7 6r6c7 5r6c3 6r6c3 2r6c3 3r5c1 7r5c1 2r5c1 -> [3r6c9==3r5c1] => -{3r5c8, 3r6c1}; stte

by **eleven** » Sun Jul 30, 2017 9:42 pm

Same cells, same eliminations, different notation:
(3=5)r6c9-5r6c237=27r6c23-(2|7=3)r5c1 => -3r5c8,r6c1

by **pjb** » Mon Jul 31, 2017 6:13 am

Code: Select all: 47 2 38 | 34678 3479 34678 | 1 5 689 6 79 38 | 5 1 378 | 24 24 89 14 d59 e15 | 2468 249 2468 | 3 7 689 ------------------------+----------------------+--------------------- 378 4 569 | 1367 357 13567 | 5679 18 2 237 1 2569 | 2367 8 23567 | 5679 36 4 2378 cd57 d256 | 123467 23457 9 |d567 18 b3-5 ------------------------+----------------------+--------------------- 5 6 4 | 1237 237 1237 | 8 9 13 9 38 7 | 1348 345 13458 | 26 26 a135 12 38 f12 | 9 6 358 | 45 34 7

(5)r8c9 = r6c9 - r6c2 = r3c2 - (5=1)r3c3 - (1=2)r9c3 - (2=567)r6c237 => -5 r6c9; stte

Phil

by **JC Van Hay** » Mon Jul 31, 2017 7:28 am

or

Code: Select all: +--------------------+-----------------------+------------------+ | 47 2 38 | 34678 3479 34678 | 1 5 689 | | 6 79 38 | 5 1 378 | 24 24 89 | | 14 59 15 | 2468 249 2468 | 3 7 689 | +--------------------+-----------------------+------------------+ | 378 4 569 | 1367 357 13567 | 5679 18 2 | | (237) 1 2569 | 2367 8 23567 | 5679 (36) 4 | | 238-7 (57) (256) | 123467 2347-5 9 | (567) 18 3-5 | +--------------------+-----------------------+------------------+ | 5 6 4 | 1237 237 1237 | 8 9 13 | | 9 38 7 | 1348 345 13458 | 26 26 135 | | 12 38 12 | 9 6 358 | 45 34 7 | +--------------------+-----------------------+------------------+ 5r6c2 7r6c2 5r6c7 7r6c7 6r6c7 6r5c8 3r5c8 5r6c3 6r6c3 2r6c3 7r5c1 3r5c1 2r5c1 -> [5r6c2==5r6c7==5r6c3] => -{5r6c59}; furthermore, the solutions of the 5 constraints -> [7r6c27==7r5c1] => -{7r6c1}.

Patterns Game 0287 - 7.5 (coloin)