It is very difficult to distinguish between these two...

why don't You try to solve the little colored crosswords? the site has a lot of very cute mini krossvordov

Thanks for the advice, Tverianka. But it's not that I don't know how to solve large puzzles. The point here is that some authors, creating crosswords, sometimes lay back a couple of more subtle shades. So I usually don't do such.

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I found this example:
https://en.grandgames.net/nonograms/picross/yaponka_s_zontikom_na_vetru_