Fun Game Construction Contest!

                    Here's a short and a longer example:

The very first time I mated with 6 knights, I felt elated, since every decent chess player knows that king and two knights cannot force mate but not every player knows that king and three or more knights can force mate. Subsequently, one of my friends told me that Nakamura has accomplished this before, and I felt sad.

no, nakamura checkmated the pc on the corner, but same thing. yeah, he copied nakamura...

On move 300 I realised that I did not have sufficient moves to hold without meeting the 50-move rule at any point in the game, so I had to concede my 500 moves goal at move 490.

I have not learned how to checkmate with many bishops yet (Nakamura also did with bishops), so maybe I should try one day.

Two bishops are probably not difficult, but getting many bishops in a configuration is much more difficult. In my opinion, knights are easier because two knights placed side by side provide a rook-like barrier similar to the barrier provided by two pawns placed next to each other. I used this idea to confine the king to the back rank or side file.

This was what I was worried about in the game. I might have repeated a threefold once or twice by accident (not sure, but definitely I have done a twofold repetition by simply repeating a position), but I tried my very best to not allow it. In the moves preceding the capture of the last Black pawn on b6, I found it difficult to avoid repetition without capturing the pawn.

White to move.  Full casting possibilities.

I invite anyone to deconstruct the above two positions in as few moves each as possible.

Which happened to me several times before with rooks. On one of the occasions I placed a rook on the other side thinking it would be out of play (I had intended the rook to be a spectator of the checkmate alongside my king) whilst I am attempting a many knights checkmate. Ended up, because of the rook, which guarded some corner square, I unexpectedly stalemated the opponent.

That can be achieved in 10 moves

Is that good?

This is a Winner: