Indian Defense London System Mate In 2 Puzzle (Rated 946): Spot a Mate in 2 — Queenside Attack
This middlegame puzzle is a classic queenside attack where the enemy king is boxed in and the queen can invade with tempo. The key idea is not material gain, but forcing the king into a mating net by using check, coordination, and limited escape squares. In classical chess, these short tactical finishes often come from active pieces and a vulnerable king position rather than a long calculation battle.