Pin Advanced Puzzle (Rated 1363): Pin — King Safety
A pin becomes especially powerful when it restricts a piece defending the king. In this middlegame, Black’s rook pressures the king while also targeting a pinned pawn, creating tactical tension. White’s queen attacks the active rook, but the position contains a deeper issue: the rook on e4 has no useful escape squares. The correct defensive concept is to improve king safety while uncovering a counterattack against the exposed rook on the back rank.