Greaseleeman:
Title should say "white to play" not "white to live" since white could live small with S4

Sadaharu:
A17 instead of A16 should work too. I also realised I made the same comment before, but seems like the variation is either not added or it's gone.

pawnstar:
B15 should be met with D15, but that's not the case at the moment.

posetcay:
I feel like this problem would be more interesting if there was a black stone at M5 (one less liberty for center group).

Ben Chaney:
B15 should be met with D15 instead of B16. Otherwise that line transposes to the solution, which is incorrect. As an aside, this line is inferior because it doesn't save the 5 stones towards the center.

Cybermind:
B15 B16 D15 C15 A16 seems alive

BucketBoss:
B15, B16, D15, C15, A16/A17 should also be an answer same position as official solution

Sadaharu:
Atari at A17 instead of A16 should be correct also