F R I D A Y! Puzzle time. "A cheeky move"

[@bryonysenczyszyn1822]

This is great!! I wasn't expecting that move

[@shaungibbons22]

Yessssss! First time I got this correct. Took me a good 5 mins...but it's a classical right, and I had time on my clock.

[@KhplSenseii]

I thought of Kf1 but I guess this one is forcing so it's better