Learn How to Fork: Decisive Material Gain
This puzzle comes from the Petrov's Defense, Three Knights Game and highlights a classic tactical fork in the opening. Black’s active knight jump creates immediate threats against the white king and queen, forcing a response while also winning time. In practical classical chess, these forcing moves are especially powerful when the opponent’s king is still exposed and development is incomplete. The idea is not just to check, but to use the check to win material and keep the initiative.