Could black win this game?
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first play 1... Nf6+, and then you must find a way to win manouvering the rooks and knight.
Bring the white king to the d file, to check with a rook and win the queen.
Or the knight can make a fork on the way, in the squares c5,e3 and f2.
You must win this position, the white king is terrible exposed.