After 30. F11 for Twixtbot, a winning line for TBSlow might be 31.l9 32.n7 33.n10 34.l7 35.n6 .

But I am not certain. TB resigned, so presumably it's evaluation was < -.85, so perhaps BJ can append the final proposed line of play in this game.
mc

30.f11 31.n14 32.n13 33.m16 34.l17 35.l18 36.n6 37.l6 38.l5 was fast's pv, and I'll add that 39.n7 seems to be required next.

|30.f11 31.l9 32.l7 should be winning for black, for example 33.n10 34.n6 or 33.n6 34.o10 35.p10 36.o16

Q6 seems bad. Maybe black was already lost, but |6.m13 makes more sense to me. For example 7.s14 8.q18 and black’s position looks a lot more active than it was in the game.

Let me amend that: | 6.m13 7.s14 8.q15