In the game of chess, prophylaxis is a powerful technique used to prevent your opponent from carrying out their plans, and to limit their options. By anticipating your opponent's moves and taking measures to stop them, you can gain a strategic advantage and steer the game in your favor. In this video, GM Ramesh explores the principles of prophylaxis in detail through multiple examples and concepts with WIM Michelle Catherina. He discusses how to identify your opponent's potential plans, how to prevent them from carrying out their intended moves and help you gain the upper hand.