Red utilizes the open file support of the King and the corner blockade by the Pawn to deliver an immediate bottom-rank Chariot checkmate.
Black's King is severely paralyzed on the central file, obstructed by its own Advisor and Rook. Red controls the 4th file with an advanced Pawn and dominates the open 6th file with the King, stripping Black of all escape squares. By plunging the Rook to the 9th rank (R6+4), Red delivers an unblockable checkmate backed by the 'Face-to-Face King' attacking principle. This endgame illustrates the immense power of King-Chariot coordination and space control when exploiting self-congested enemy formations.