Rook Endgame Puzzle (Rated 1377): Win a Rook Endgame — Short Skewer

This chess endgame shows how active rook placement can turn a small material edge into a decisive win. The key idea is a short skewer: the rook gives check, forcing the king onto a square where the enemy rook or another valuable piece becomes exposed. In rook endgames, king activity and file control matter enormously, so even a seemingly simple check can create a tactical shot that wins material immediately.