Levi Ackermann joined the Survey Corps at the age of 15. He was recruited by Commander Erwin Smith after displaying exceptional combat skills and leadership potential. Despite his young age, Levi quickly rose through the ranks and became one of the most skilled and respected soldiers in the Survey Corps. **

The Hunter Corps is a group of highly skilled individuals who are trained in combat and survival skills. Wearing glasses may not hinder their abilities as long as they have the appropriate prescription and are comfortable with their vision. In fact, glasses can provide them with improved clarity and focus, which can be crucial in their line of work. Additionally, modern glasses are designed to be durable and resistant to damage, making them suitable for the rigorous activities that the Hunter Corps may engage in. **

Playing against a grandmaster in chess can be an incredibly challenging and intimidating experience. Grandmasters are among the best players in the world, with a deep understanding of the game and exceptional strategic skills. It is important to approach the game with humility and a willingness to learn, as playing against a grandmaster can provide valuable insights and opportunities for improvement. While the odds of winning may be slim, the experience of facing off against a grandmaster can be a valuable learning opportunity and a memorable experience for any chess enthusiast. **

One can join the armored corps with glasses by meeting the vision requirements set by the military. This may involve having a certain level of visual acuity and ensuring that the glasses do not interfere with the proper use of military equipment. It is important to consult with a military recruiter or medical professional to understand the specific requirements and procedures for joining the armored corps with glasses. **

Becoming a chess grandmaster is a highly challenging and competitive endeavor that requires exceptional skill, dedication, and strategic thinking. While it is theoretically possible for anyone to become a grandmaster with enough practice and commitment, the reality is that only a very small percentage of chess players ever achieve this prestigious title. To become a grandmaster, one must typically start playing chess at a young age, receive expert coaching, participate in numerous tournaments, and consistently perform at a high level against top competition. It is important to set realistic goals and enjoy the journey of improving your chess skills, regardless of whether or not you ultimately reach the grandmaster level. **

To checkmate in chess, you need to put your opponent's king in a position where it is under attack and cannot escape capture. This means the king is in a position to be captured on the next move and there are no other legal moves available to get out of check. Checkmate ends the game immediately, and the player who achieves checkmate is declared the winner. It requires strategic planning, positioning your pieces effectively, and anticipating your opponent's moves to successfully checkmate in chess. **

To checkmate in chess, you need to put your opponent's king in a position where it is under attack and cannot escape capture. This means the king is in a position to be captured on the next move and there are no legal moves that can be made to prevent this. To achieve checkmate, you must use your pieces strategically to control key squares around the opponent's king and limit its movement until it is trapped. It is important to plan your moves carefully and anticipate your opponent's responses to successfully checkmate in chess. **

The main difference between the Navy and the Marine Corps lies in their primary functions and areas of operation. The Navy is primarily responsible for maintaining and operating naval forces at sea, including ships, submarines, and aircraft carriers. On the other hand, the Marine Corps is a separate branch of the military that serves as an amphibious and expeditionary force, often deployed to combat zones to provide rapid response and support. While both branches work closely together and are part of the Department of the Navy, they have distinct roles and missions within the military. **