def corrected_fens(self, fens: list[list[str]]) -> list[list[str]]:
return Mappable(fens).replaced_with_disjoint(
Mappable.indice_to_disjoint([
(self.last_color_indexed(fens, "w"),
lambda i: fens[i] + [FEN.black_end()]),
(self.last_color_indexed(fens, "b"),
lambda i: fens[i] + [FEN.white_end()]),
]))
),
(
CorrectableTrace(
[
[FEN.starting(), FEN.first()],
[FEN.first(), FEN.starting()],
[FEN.starting(), FEN.first()],
[FEN.first(), FEN.starting()],
],
[[SAN.first()], [SAN.first()], [SAN.first()], [SAN.first()]],
[[0, 1], [0, 1], [0, 0.5], [0, 0.5]],
),
CorrectableTrace(
[
[FEN.starting(), FEN.first(), FEN.white_end()],
[FEN.first(), FEN.starting(), FEN.black_end()],
[FEN.starting(), FEN.first(), FEN.white_end()],
[FEN.first(), FEN.starting(), FEN.black_end()],
],
[[SAN.first()], [SAN.first()], [SAN.first()], [SAN.first()]],
[[0, 0, 1], [0, 0, 1], [0, 0.5, 0.5], [0, 0.5, 0.5]],
),
),
(
CorrectableTrace(
[
[FEN.starting(), FEN.first(), FEN.starting()],
[FEN.first(), FEN.starting(), FEN.first()],
[FEN.starting(), FEN.first(), FEN.starting()],
[FEN.first(), FEN.starting(), FEN.first()],
],