No No No

Challenge:

No! No… nono ..

Where's the egg???

Solution:

At first glance I thought the challenge was a massive Sudoku puzzle but quickly realized there were too many repeating numbers in some columns and rows. I Google searched for "nono puzzle" and learned of a Nonogram puzzle.

After some additional searching, and trial and error, I found an online Nonogram solver that I used to solve the challenge. After transcribing the numbers from the challenge image I created a submission file containing the data (included below), chose the PNG Output option, set scale to 20 and selected the Solve the puzzle option. The result was a valid QR Code containing the flag.

The accepted flag was, he2021{Y3sY3sY3sgram_s0unds_a_l0t_nic3r}

width 29
height 29

columns
7,2,1,2,4,7
1,1,1,1,1,1
1,3,1,1,3,4,1,3,1
1,3,1,2,3,1,1,1,3,1
1,3,1,1,5,3,1,3,1
1,1,1,1,1,1,1,1,1,1,1
7,1,1,1,1,1,1,1,7
1
6,1,5,1,4,1
3,1,1,2,1,1,2,3,3
1,1,3,1,3,1,2
2,1,3,1,1,1,1,3,1
3,1,1,4,1,4,5
1,1,1,1,1,2,3,2
1,1,4,4,1,1,1,4
2,1,1,4,3,2,1
2,1,2,5,3,1,1,4
1,3,1,1,1,2,1
2,1,1,1,1,1,1,2
1,1,1,2,2,1,1,3,2,1
1,9,2,1,6,1
1,1,1,1,1,1,1
7,2,1,1,1,2,1,1,1,1
1,1,3,1,1,3,1,4
1,3,1,2,1,2,2,6,1,1
1,3,1,1,1,1,3,3,1,1
1,3,1,1,1,1,1,3,1,1
1,1,3,1,1,3,5
7,1,1,1,1,2,2

rows
7,1,1,1,1,7
1,1,1,3,2,1,1,1,1
1,3,1,2,2,2,2,1,3,1
1,3,1,1,1,1,1,1,1,3,1
1,3,1,1,2,1,1,2,1,3,1
1,1,2,1,1,1,1,1
7,1,1,1,1,1,1,1,7
2,1,1,1,2
1,5,5,1,2,5
2,1,3,1,3,1,3,1
2,3,2,3,2,1,1
1,3,1,2,1,1,1,1,1,2
5,2,2,1,1,3
1,3,2,1,4,3,1,1
1,3,1,1,2,5,2
2,2,3,1
2,2,2,2,3,1,4
1,1,1,1,2,1,2,3,2
1,1,3,4,2,1,1,1
1,1,1,5,1,1,1,2,1
1,4,2,3,9
1,1,1,1,2,1,3
7,1,2,1,1,2,1,3
1,1,2,2,3,2,2,1
1,3,1,2,2,1,6,2
1,3,1,1,1,1,1,1,3,1,3
1,3,1,2,4,2,4,1
1,1,3,2,1,2,1,1
7,3,1,1,1,1,3