It turned out to be fast because you left your king on an open diagonal after Teleportation.
Using Gravitatur I pulled it out into the center of the board.

Oh, so I should probably keep the king completely sarounded by pieces

1

G @ h6:

playstrategy.org/study/LSL0i5WO/AmiLRdET

How did you learn all the strategy so quickly when you just invented it?

And Nf5+

playstrategy.org/study/LSL0i5WO/01FkLZDd

Again, you have no move but Kf8:

playstrategy.org/study/LSL0i5WO/gojEKEIF

whoops! i meant kf8, sorry

1

And now I can say for sure:
White to move and mate in 2

1

Thanks for the game :)