Learn How to Use an Intermezzo: Tactical Refutation
This puzzle comes from the Indian Defense, specifically an Accelerated London System structure where tactics override quiet development. The key idea is an intermezzo: instead of recapturing or retreating immediately, Black inserts a forcing check that changes the move order and exposes White’s king. In positions like this, a seemingly active white piece can be punished if it is overextended and unsupported. The result is a tactical refutation that wins material and improves Black’s king safety situation.