The video will help to break into the puzzle. Without the break-in I would rate the puzzle 1-2 stars in difficulty.
I'm not a professional YouTuber, please be nice in the comments!
Solution code: Row 4 followed by Column 4
on 29. December 2021, 09:13 by jimblek
excellent puzzle! Thanks.
on 28. December 2021, 18:39 by Chelo
Very nice puzzle, with a very nice break in!.. Please keep on setting!..
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