Help with solving this puzzle #4

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Help with solving this puzzle #4

Postby PeetNeef » Wed Mar 08, 2023 12:57 am

Hey guys,

Another puzzle again. Tried something with UR's and other techniques, but I can't work it out..

I hope the notes are clear.

https://ibb.co/xJs6Zkh
PeetNeef
 
Posts: 28
Joined: 06 February 2023

Re: Help with solving this puzzle #4

Postby yzfwsf » Wed Mar 08, 2023 1:47 am

Code: Select all
.---------.-----------.------------.
| 1  6  5 | 4  3   78 | 78   2   9 |
| 3  4  9 | 2  78  5  | 178  17  6 |
| 8  7  2 | 1  9   6  | 4    5   3 |
:---------+-----------+------------:
| 2  1  7 | 9  6   4  | 3    8   5 |
| 5  9  8 | 7  2   3  | 6    4   1 |
| 4  3  6 | 5  18  18 | 2    9   7 |
:---------+-----------+------------:
| 6  5  4 | 8  17  9  | 17   3   2 |
| 7  8  1 | 3  5   2  | 9    6   4 |
| 9  2  3 | 6  4   17 | 5    17  8 |
'---------'-----------'------------'

Bivalue Universal Grave + 1: => r2c7 = 7
yzfwsf
 
Posts: 905
Joined: 16 April 2019

Re: Help with solving this puzzle #4

Postby Leren » Wed Mar 08, 2023 2:42 am

The puzzle 1.........492......7.1...53..7..4...5..7.3..1...5..2..65...9.3......296.........8
Code: Select all
*-----------*
|1..|...|...|
|.49|2..|...|
|.7.|1..|.53|
|---+---+---|
|..7|..4|...|
|5..|7.3|..1|
|...|5..|2..|
|---+---+---|
|65.|..9|.3.|
|...|..2|96.|
|...|...|..8|
*-----------*


Code: Select all
*--------------------------------*
| 1 6 5 | 4  3   a78  |b78  2  9 |
| 3 4 9 | 2  8-7  5   | 178 17 6 |
| 8 7 2 | 1  9    6   | 4   5  3 |
|-------+-------------+----------|
| 2 1 7 | 9  6    4   | 3   8  5 |
| 5 9 8 | 7  2    3   | 6   4  1 |
| 4 3 6 | 5  18   18  | 2   9  7 |
|-------+-------------+----------|
| 6 5 4 | 8 d17   9   |c17  3  2 |
| 7 8 1 | 3  5    2   | 9   6  4 |
| 9 2 3 | 6  4    1-7 | 5   17 8 |
*--------------------------------*

You can use a Skyscraper in cells a-b-c-d or the BUG+1 move as in the previous post or remote pairs as shown below. You can read about BUG+1 here and Remote Pairs here.

Leren
Last edited by Leren on Wed Mar 08, 2023 11:49 pm, edited 3 times in total.
Leren
 
Posts: 5117
Joined: 03 June 2012

Re: Help with solving this puzzle #4

Postby eleven » Wed Mar 08, 2023 3:52 pm

Code: Select all
+----------------+----------------+----------------+
| 1    6    5    | 4    3    78   | 78   2    9    |
| 3    4    9    | 2    8-7  5    | 178 d17   6    |
| 8    7    2    | 1    9    6    | 4    5    3    |
+----------------+----------------+----------------+
| 2    1    7    | 9    6    4    | 3    8    5    |
| 5    9    8    | 7    2    3    | 6    4    1    |
| 4    3    6    | 5    18   18   | 2    9    7    |
+----------------+----------------+----------------+
| 6    5    4    | 8   a17   9    |b17   3    2    |
| 7    8    1    | 3    5    2    | 9    6    4    |
| 9    2    3    | 6    4    17   | 5   c17   8    |
+----------------+----------------+----------------+

Easier to spot for me is the remote pair 17. If a=1, then d must be 7, and vice versa, so r2c5 cannot be 1 or 7.
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