The New Sudoku Players' Forum

by **Yogi** » Wed Nov 16, 2022 6:50 pm

9..8...21.4..5...........6....9.2....7....3.......1...2.1..........3.4....6......

Code: Select all: +---+---+---+ |9..|8..|.21| |.4.|.5.|...| |...|...|.6.| +---+---+---+ |...|9.2|...| |.7.|...|3..| |...|..1|...| +---+---+---+ |2.1|...|...| |...|.3.|4..| |..6|...|...| +---+---+---+

by **Leren** » Wed Nov 16, 2022 8:19 pm

Code: Select all: *----------------------------------------------------------------* | 9 56 357 | 8 46 3467 | 57 2 1 | | 1678 4 278 | 1267 5 679 | 789 3789 3789 | | 13578 b12-58 23578 | 127 12 379 | 5789 6 4 | |----------------------+-----------------+-----------------------| | 3568-1 a1568 3458 | 9 4678 2 |f1678 4578-1 5678 | | 168 7 2489 | 456 468 456 | 3 1489 2689 | | 568 c25689 4589-2 | 3 4678 1 |d26789 45789 56789-2 | |----------------------+-----------------+-----------------------| | 2 358 1 | 4567 9 45678 | 678 3578 35678 | | 578 589 5789 | 1256 3 568 | 4 1589 25689 | | 4 3589 6 | 1257 12 578 |e12-123 135789 235789 | *----------------------------------------------------------------*

(1) r4c2 = (1-2) r3c2 - r6c2 - r6c7 = (2-1) r9c7 = (1) r4c7 loop => - 58 r3c2, - 1 r4c18, - 2 r6c39, -123 r9c7; basics

Code: Select all: *---------------------------------------------------------* | 9 a56 357 | 8 4-6 34-6 |a57 2 1 | | 178-6 4 278 | 12 5 b69 |b789 b3789 b3789 | | 358 12 358 | 7 12 39 | 589 6 4 | |-------------------+---------------+---------------------| | 3568 1568 3458 | 9 4678 2 | 1678 4578 5678 | | 168 7 2489 | 46 468 5 | 3 1489 2689 | | 568 25689 4589 | 3 4678 1 | 26789 45789 56789 | |-------------------+---------------+---------------------| | 2 358 1 | 46 9 4678 | 678 3578 35678 | | 578 589 5789 | 12 3 68 | 4 1589 25689 | | 4 389 6 | 5 12 78 | 12 3789 3789 | *---------------------------------------------------------*

ALS XZ Rule: X = 7, Z = 6: (6=7) r1c27 - (7=6) r2c6789 => - 6 r1c56, r2c1; stte

Leren

17November22