Bogo-Indian Defense

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+

The Bogo-Indian Defense is a solid and strategically rich chess opening that begins with the moves 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+. Named after the famous Grandmaster Efim Bogoljubov, this opening aims to disrupt White's plans by pinning the knight on c3 and preparing to challenge White's control of the center. The Bogo-Indian Defense leads to positions that are flexible and balanced, allowing Black to quickly develop pieces while maintaining a solid structure. This opening has been employed by many top players, including former World Champions Garry Kasparov and Anatoly Karpov, due to its reliable and resilient nature, offering both strategic depth and counter-attacking opportunities.