yaya: The "solution" is not correct. If the beginning move is capturing the stone on the second line, the answer must not be to protect the stone on the first line, because, it's not clear that the defender can break out. The wright answer to capture is the nobi T17 and White cannot capture S19 because of damezumari, he dies. The correct solution for that reason is the beginning sagari ending in e seki, see .sgf
Your moves have been added.