Rook Endgame Puzzle (Rated 1261): Promote a Passed Pawn — Endgame Win

This chess endgame shows how a passed pawn can outweigh active rooks and king activity when the defender is forced into passivity. The key idea is to use the pawn as a tactical weapon, not just a long-term asset: once it advances with support, it can create a promotion threat that ties the enemy rook to defense. In classical chess, these positions often hinge on tempo, coordination, and whether the stronger side can force a decisive breakthrough before counterplay appears.