Why is analysis not possible in imported games like here?

http://de.lichess.org/hvwpYxnB/black#0

This game can not be analysed in lichess. Why is that?

Black is missing a pawn for some reason - Stockfish probably cannot understand what is going on (i.e. this position may not be possible)

Clarkey

Because games from a non-standard starting position cannot be analysed. It was VERY problematic and caused lots of issues when it was allowed.

960 is the exception, but everything else cannot.

Schachheld

Good to know. This game was Nakamura against Stockfish played under special conditions.

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