Stuck on a vicious puzzle

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Stuck on a vicious puzzle

Postby Fortesque92 » Sun Oct 22, 2023 3:59 am

Fortesque92
 
Posts: 94
Joined: 30 June 2020

Re: Stuck on a vicious puzzle

Postby Leren » Sun Oct 22, 2023 5:21 am

Code: Select all
..3.7.....9.8..2.....2..4.7.79....43...52...83......1.7...5......53..........695.

You missed an easy elimination of 4 in r9c1 via the 4's in Box 1. Then

Code: Select all
*--------------------------------------------*
| 4568 2    3   |b46  7     45   | 1 68  9   |
| 146  9    7   | 8   1346 a14   | 2 36  5   |
| 1568 168  16  | 2   1369  159  | 4 368 7   |
|---------------+----------------+-----------|
| 2    7    9   |c16  168   8-1  | 5 4   3   |
| 16   146  146 | 5   2     3    | 7 9   8   |
| 3    5    8   | 49  49    7    | 6 1   2   |
|---------------+----------------+-----------|
| 7    1468 146 | 149 5     1489 | 3 2   146 |
| 9    146  5   | 3   14    2    | 8 7   146 |
| 18   3    2   | 7   148   6    | 9 5   14  |
*--------------------------------------------*

1. XY Wing . Easy moves get you to to here. Then

Code: Select all
*---------------------------------*
| 58 2  3  | 46   7  45 | 1 68 9  |
| 4  9  7  | 8    36 1  | 2 36 5  |
| 58 16 16 | 2    39 59 | 4 38 7  |
|----------+------------+---------|
| 2  7  9  | 16   16 8  | 5 4  3  |
| 6  14 14 | 5    2  3  | 7 9  8  |
| 3  5  8  | 49   49 7  | 6 1  2  |
|----------+------------+---------|
| 7  8  46 |*4-19 5  49 | 3 2  16 |
| 9  46 5  | 3    14 2  | 8 7  16 |
| 1  3  2  | 7    8  6  | 9 5  4  |
*---------------------------------*

2. BUG+1 solves the puzzle.

Leren
Leren
 
Posts: 5046
Joined: 03 June 2012

Re: Stuck on a vicious puzzle

Postby Fortesque92 » Mon Oct 23, 2023 1:30 am

Cheers!
Fortesque92
 
Posts: 94
Joined: 30 June 2020


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