3. _ o _ s _ _ _ _ _ _ _ _ _ r _ _ _ _ (two words, 18 letters)
3.
consensus algorithmI nearly missed the whole round again. I'm just trying my luck with this one, I hope I'm right.
nice move and respect - i had a very hard time with this word

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cygan answered most of it. I wonder how did cygan manage to guess those words.
Maybe he is really good at solving puzzles and riddles, if you can call it that. And it helps if he is familiar with the terminology and have seen the words in various texts. Or he has a huge database of terms and a script/software that can find those that match according to the provided letters. Who knows
Round #4 is complete. Stay tuned for the next one!
the whole thing remains my secret and for many words i also have to do some research

i am already looking forward to the round #5
