Incorrect puzzle
I just completed puzzle #773386 but it failed me when I played c5 instead of g2. The engine gives both as equal. Please reinstate my score.
Yes, c5 is still winning, but it's not equal. g2 is significantly better.

That said, if you feel a puzzle is incorrect, you can report it:
https://support.chess.com/article/1223-how-do-i-report-a-bad-puzzle
I just completed puzzle #773386 but it failed me when I played c5 instead of g2. The engine gives both as equal. Please reinstate my score.