Ruy Lopez Steinitz Defense Mate In 1 Puzzle (Rated 866): Mate in 1 — Ruy Lopez Tactic

This puzzle is a classic middlegame finish from the Ruy Lopez, where White’s pieces coordinate to exploit a weakened king position. The key idea is to recognize when the enemy king has no safe squares and the checking piece is supported by the rest of the army. In positions like this, material count matters less than king safety, and a single forcing move can end the game immediately. Always scan for direct checks before considering slower plans.