Hrewsahgs:
Argh, linking function's not working again. Anyway, should A16 B18 C19 D19 B19 be considered a solution, or is the bent 4 considered sub-optimal because a cleaner kill is possible?

Hrewsahgs:
+ S19 Should the bent 4 be considered a solution, or is it sub-optimal?

Ivan Detkov:
Added an alternative ending.

Hataycan:
Not bent-four sorry. Anyway, other solution is also correct. After T4-S1-T2-T3, Q1 also works.

Hataycan:
SGF

bagelfan:
it says capter not chapter