## Stuck on Hard puzzle

Post the puzzle or solving technique that's causing you trouble and someone will help

### Stuck on Hard puzzle

Hello, Is anyone able to walk me through the logic for the next step?
Thank you for your help
Attachments
Hard puzzle
81117295_10218554923456225_7332703815130415104_n.jpg (58.57 KiB) Viewed 183 times
alexd

Posts: 1
Joined: 26 December 2019

### Re: Stuck on Hard puzzle

in column 8, you've marked a pair of 2's and 9's, so no other cells in that column can be 2 or 9

so where can you put a 9 in row 7?
Once upon a time I was a teenager who was active on here 2007-2011
ocean and eleven should have paired up to make a sudoku-solving duo called Ocean's Eleven
Pat wrote:prenyast
999_Springs

Posts: 525
Joined: 27 January 2007
Location: In the toilet, flushing down springs, one by one.

### Re: Stuck on Hard puzzle

Your PM diagram appears to contain some errors, although your solved cells are all OK. I think this is where you should be :

Code: Select all
`*-------------------------------------------*| 27-9 8  1   | 5   4   27   | 3    29 6    || 4    36 79  | 236 389 1278 | 1279 15 1257 || 27-9 36 5   | 236 39  127  | 1279 8  4    ||-------------+--------------+--------------|| 5    1  23  | 4   38  9    | 6    7  28   || 6    9  4   | 7   5   28   | 128  3  128  || 8    7  23  | 23  1   6    | 5    4  9    ||-------------+--------------+--------------||*9-1  2  6   | 8   7   3    | 4    15 15   || 137  5  8   | 9   2   4    | 17   6  137  || 37-9 4  7-9 | 1   6   5    | 2789 29 2378 |*-------------------------------------------*`

As 999_Springs hinted, there is only one 9 in Row 7, so you can mark it off there as I've shown. The puzzle solves easily from there, with just singles.

Leren
Leren

Posts: 3927
Joined: 03 June 2012

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