Puzzles with several correct answers?!

https://www.chess.com/puzzles/problem/770420

So, this puzzle had many good answers at the last so it should but why did still keep going on? I faced many such puzzles but 1st time I told in forums.

At Depth 18 it was like 3-4 moves were winning.

By the time, I created the post it reached depth 25

After Qf8 the only drawing move is Kg4 if the queen were on f6 then it could play Qd4+ and force the queen trade.

Which software do you use? I get depth 25 after waiting for 2-3 mins. you got depth 35 so early.

Can I also download it?

Arena and SCID are free 

So is stockfish (just google these).

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Stockfish by itself wont do anything, it's just the engine. After you download the engine you have to load it into an interface. Arena and SCID are interfaces (you only need 1 interface).

How much space does it take on pc or laptop? I just have 32 gb left

Oh

I don't think it takes up much space.

Ok, my friend told me that the latest LC0 takes 100 GB, idk if its true thats why I asked, thanks

Haha, yeah, stockfish is completely different from Lc0 (I didn't know Lc0 took that much space).

Ya, stockfish is just an engine, well leela is engine + neural net 

And also downloading is so tough.