Disadvantages are as follows: 1, affecting study and work: playing chess for too long will affect the efficiency and quality of study and work.

2, affecting health: sitting in front of the chessboard for a long time will lead to physical stiffness, eye fatigue, cervical pain and other problems.

3. Dependence: Over-reliance on playing chess to relieve stress or relax will lead to other problems not being solved in time.