Learn How to Spot Back Rank Mate: French Defense Exchange
This puzzle is a classic middlegame tactical finish from the French Defense Exchange Variation, where king safety and piece coordination matter more than long-term plans. The key idea is a back rank mate: when the enemy king has no escape squares and a heavy piece can invade the first rank, the game can end immediately. Even if material is roughly balanced, one loose rook or an overloaded defender can make the position collapse at once.