Sadaharu: I know it's hard to cover all sequences. I'm just saying that M19 can be played later instead of immediately. Making both sides the same shape first before making moves like M19 is more beautiful IMO
Sadaharu: After playing the right side, black can play E14 first instead of M19
posetcay: Due to the symmetrical branching paths it is impossible to cover all the right sequences, but I think the problem is interesting enough that it was worth adding in a flawed state.
Ok, I added more variations.