Students and families play chess at the Shenyang No 3 Primary School on April 6. April 6 is the campus open day of the school, when the school organizes an interactive activity for students and families to study and play games together. [Photo/Chinanews.com]

An aerial view of students and families playing chess at Shenyang No 3 Primary School on April 6. Chess is a required course at the school, and the school is known for training future professional chess players. [Photo/Chinanews.com]

Students and families play chess at the Shenyang No 3 Primary School on April 6. [Photo/Chinanews.com]