Chessformer Level 21 -
The layout features multiple tiers of platforms, interactive switches/padlocks, and a highly restrictive pathing layout. The Rook is the executioner piece, as it is the only asset that can safely occupy the exact file and rank required to capture the king.
Slide the rook right from the bottom-left. It will travel across the entire bottom row, pushing a black pawn that was hiding at (4,7) all the way to (7,7). That pawn now sits exactly on the star’s square. This seems disastrous—but it’s intentional.