An easy endgame to a peaceful night | Puzzle of the day 03/13/2023

Hey guys! Today an easy exercise: How can Black win this pawn endgame?

A4 has to be the first move, freezing the pawns. Then you take the c pawn if K trie’s infiltrating, and then try to promote h pawn. It’s quite an instructive puzzle!

Right, A5 for black stops the pawn advance, you win the c pawn with your king, and eventually promote with the h-pawn, as the h and g pawns self protect. White has no good options.