Puzzle 10

I actually spent a minute and a half in the 3/0 game calculating Qg4. I think it's the best move in the position as the Nd4 line seems to be completely winning (if Black plays Bxb2, of course. Play continues otherwise), while in the other lines, Black may have chances to hold. Stockfish DD (RIP) thinks that White's best chance is the move you should solve in the coming puzzle (though at depths of 26+, it starts thinking otherwise), but the lines given lead to fine positions for Black which should be able to hold: