Edge Pin Mate Puzzle (Rated 600): Edge Pin Mate — Mate in 3
This chess puzzle shows how a pinned piece near the edge can become the key to a forced mating net. The attacking side uses active pieces, king safety pressure, and a forcing capture to drag the defender into a tactical sequence. Once the vulnerable piece is removed, the king’s shelter collapses and every reply becomes more limited. This is a classic middlegame pattern where material and king safety work together to create a direct finish.