Learn How to Clear the File: Mate in 3
This puzzle is a classic example of a forcing mating net built around clearance and a pin. The key idea is to remove a defender or blocker so a major piece can invade with tempo, while the enemy king is left with no safe squares. In practical terms, these patterns often appear in sharp middlegames and simplified endings where piece coordination matters more than raw material. Look for checks, captures, and threats that limit the opponent’s replies.