The New Sudoku Players' Forum

by **mith** » Mon Mar 01, 2021 6:25 pm

Code: Select all: +-------+-------+-------+ | . . . | . . . | . . . | | . . . | . 3 . | 1 . 4 | | . 1 5 | . . . | . . 9 | +-------+-------+-------+ | . 2 . | . . 6 | . 5 . | | . . 3 | 5 . 8 | 9 . . | | . 7 . | 9 . . | . 3 . | +-------+-------+-------+ | 2 . . | . . . | 3 8 . | | 4 . 6 | . 2 . | . . . | | . . . | . . . | . . . | +-------+-------+-------+ .............3.1.4.15.....9.2...6.5...35.89...7.9...3.2.....38.4.6.2.............

Code: Select all: +-------+-------+-------+ | . . . | . . . | . . . | | 3 . . | . . . | . 1 4 | | 1 . . | 5 . 9 | . . . | +-------+-------+-------+ | . 2 . | . 6 . | 5 . . | | . 3 5 | . . . | 8 9 . | | . . 7 | . 9 . | . 3 . | +-------+-------+-------+ | . . . | 2 . 3 | . . 8 | | 4 6 . | . . . | . . 2 | | . . . | . . . | . . . | +-------+-------+-------+ .........3......141..5.9....2..6.5...35...89...7.9..3....2.3..846......2.........

(Both pretty easy, though the second is tougher as a one-stepper.)

by **Leren** » Mon Mar 01, 2021 8:05 pm

First Puzzle :

Code: Select all: *-------------------------------------------* | 78 68 4 | 1278 a89 179 | 5 267 3 | | 789 689 2 | 78 3 5 | 1 67 4 | | 3 1 5 | 247 6 47 | 8 27 9 | |---------------+----------------+----------| | 89 2 89 | 3 1 6 | 4 5 7 | | 6 4 3 | 5 7 8 | 9 1 2 | | 5 7 1 | 9 4 2 | 6 3 8 | |---------------+----------------+----------| | 2 c59 7 | 146 b59 14 | 3 8 16 | | 4 358 6 | 18 2 13 | 7 9 15 | | 1 3589 d89 | 678 59-8 379 | 2 4 56 | *-------------------------------------------*

W Wing : (8=9) r1c5 - r7c5 = r7c2 - (9=8) r9c3 => - 8 r9c5; stte

Second Puzzle :

Code: Select all: *-----------------------------------------------* | 27 9 2468 | 468 3 1 | 67 28 5 | | 3 5 De268b | 678 d278 d26 | 9 1 4 | | 1 Aa7-8a C2468 | 5 c248 9 |B67 b28 3 | |-------------------+---------------+-----------| | 9 2 1 | 3 6 8 | 5 4 7 | | 6 3 5 | 47 247 24 | 8 9 1 | | 8 4 7 | 1 9 5 | 2 3 6 | |-------------------+---------------+-----------| | 57 17 9 | 2 145 3 | 14 6 8 | | 4 6 38 | 9 18 7 | 13 5 2 | | 25 18 238 | 468 1458 46 | 134 7 9 | *-----------------------------------------------* Kraken Cell r2c3: 8 r3c2 - (8=2) r3c8 - r3c5 = r2c56 - 2 r2c3; 8 r3c2 - 7 r3c2 = (7-6) r3c7 = r3c3 - 6 r2c3; 8 r3c2 - 8 r2c3;

Leren

by **Cenoman** » Tue Mar 02, 2021 10:27 am

First puzzle:

Code: Select all: +--------------------+---------------------+------------------+ | 78 68 4 | 1278 89 179 | 5 267 3 | | 789 689 2 | 78 3 5 | 1 67 4 | | 3 1 5 | 247 6 47 | 8 27 9 | +--------------------+---------------------+------------------+ | 89 2 89 | 3 1 6 | 4 5 7 | | 6 4 3 | 5 7 8 | 9 1 2 | | 5 7 1 | 9 4 2 | 6 3 8 | +--------------------+---------------------+------------------+ | 2 59 7 | 146 a59 14 | 3 8 16 | | 4 358 6 | 18 2 13 | 7 9 15 | | 1 3589 b89 | 678 b589 37-9 | 2 4 56 | +--------------------+---------------------+------------------+

(9=5)r7c5 - (5=89)r9c35 => -9 r9c6; ste
(ALS-XZ rule or XYZ-Wing)

Second puzzle:

Code: Select all: +-------------------+--------------------+------------------+ | 2-7 9 2468 |yA468* 3 1 | z67 a28* 5 | | 3 5 268 | 678 278 26 | 9 1 4 | | 1 Bb78 2468 | 5 B248 9 | 6-7 Bb28 3 | +-------------------+--------------------+------------------+ | 9 2 1 | 3 6 8 | 5 4 7 | | 6 3 5 | 47 247 24 | 8 9 1 | | 8 4 7 | 1 9 5 | 2 3 6 | +-------------------+--------------------+------------------+ | 57 17 9 | 2 145 3 | 14 6 8 | | 4 6 38 | 9 18 7 | 13 5 2 | | 25 18 238 | 468 1458 46 | 134 7 9 | +-------------------+--------------------+------------------+

Kraken AALS (2468)r1c48
(2)r1c8 - (2=87)r3c28
(4)r1c4 - (4=287)r3c258
(6)r1c4 - (6=7)r1c7
=> -7 r1c1, r3c7; ste

22/7 5&6 (SER 4.X)