Lyde: I think it should be G19C17B16E18A18F19, then defender can play D19 as a local threat. Because of this I think the correct variation should be G19C17B16E18D19 where White can only make Ko with F19 and there are no threats
Ivan Detkov: I added D1 but I left other variants in place. Let me know if you disagree.
I added D1 but I left other variants in place. Let me know if you disagree.