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Rd8# hahaha. I didn't see that move!

;) the crazy move to at least stop mate after Nd2 is Qg8...
In that case I don't think 0-0-0 right away leads to mate in five, but simply Bxg8 should, for example:
Kxg8, Ra8++ or:
e3, Ra8 with discovered mate on next move

Nd2 is not possible.

  1. Nd2 is not possible.

oops, sorry!.