Chess party

Hey everyone, this is another retro analysis study by me. Not as hard as the last one, but still challenging.

Background:

1) The black army invited the white king to a party - with a promise that there will be no checkmates involved. Surprisingly, the white king did not make it to the after party.

2) You have been assigned by the Federal Union of Chess (FUC) to investigate the crime scene and find out what the hell happened.

Legal or illegal? - that is up to you to decide.

Shiny trophy to the first solver

may be board inverted?????

Nop, as per coordinates =)

You are correct with your analyse detective. Now it is time for concrete chain of events (or all the moves from the starting position, if you wish). Let us unravel this mystery once and for all, and bring the people involved to justice!

And to answer your question, no. But you will be accepted to the Federal Union of the Knights of Nee.

Any takes?

 Well, that is the first mystery. There is only one possible way that checkmate could have been reached - like you said, the last move must have been hxg1R#. But then, what was white's move before that?

Which piece could have been on g1 that could possibly make a difference? can you figure it out?

unless you can do a piecedrop that acts as a capture in bughouse, then this position is impossible. under normal chess rules, there is no way that the rook could have moved his way to g1, as the only other square he could have occupied the previous move is h1, which is already occupied by the opposing king.