Forced win is not the optimal play for black

[JeroenOlieslagers]

The website mentions the line "N4 N5, N6 K7, R4 K6, R2 K7, R5++" as the answer to the question "assming optimal play, is there a forced win for white?"
When playing "N4 N5, N6 K7, R4 K6, R2" against the AI, it will respond with K7 as your line suggests.

However, this is not optimal play.
Black can play N3 instead of K7, which delays white's victory by a few moves.

Black can keep stalling like so:
N4 N5, N6 K7, R4 K6, R2 N3, K2 N5, N8 K8, R5++

Cool website, just a small mistake in the optimal play!

[Rowan441]

I think there is a typo in your notation, but you are correct!

You can beat black in my version of the game in 5 moves, but I think black should be able to survive until white's 6th move with:

N4  N5
N6+ K7
R4  N3+
K2  N5,
N8  K8,
R5++