posetcay:
"Black to kill" is a bit misleading here, white can sacrifice E18 to live in the corner, so I changed it to "Black to play". "Black to live" would also be fine.

todbeibrot:
I dont see why it shouldnt work. so q3 q2 r3 r2 s3 s2 t4 s5 s6... ... t5 q5 wins the race ... t2/s4 t5 connects ... t6 t5/q5 both work

todbeibrot:
in the solution: s6 instead of t6 should be correct too