The minimum score required to attend high school in Sichuan, China, is determined by the local education authorities. As of the latest available information, the minimum score for admission to high school in Sichuan is typically set at around 180 points out of a maximum of 600 points on the entrance exam. This score is based on the results of the Gaokao, the national college entrance examination, which is also used for high school admission. However, it's important to note that this minimum score can vary depending on the specific high school and the region within Sichuan.

The reason for this minimum score is to ensure that students entering high school have a foundational level of academic proficiency. The Gaokao is a rigorous exam that covers a wide range of subjects, and achieving a minimum score demonstrates that a student has met the basic requirements for high school education. According to data from the Sichuan Provincial Department of Education, the average Gaokao score in Sichuan is around 400 points, indicating that the minimum score of 180 is set at a level that is achievable by a significant portion of the student population.

Moreover, the minimum score serves as a benchmark for schools to maintain academic standards and to ensure that students entering their institutions are prepared for the rigors of high school. High schools in Sichuan, like those across China, are highly competitive, and admission is based not only on exam scores but also on other factors such as extracurricular activities and teacher recommendations. The minimum score acts as a filter to ensure that only students who are likely to succeed in high school are admitted.

It's also worth noting that the minimum score can be adjusted based on the year and the specific educational policies in place. For example, in some years, due to a larger number of graduates or changes in educational standards, the minimum score may be raised or lowered. Additionally, certain high schools may have higher admission requirements, necessitating a higher minimum score for students to gain admission.

In conclusion, the minimum score to attend high school in Sichuan is typically around 180 points out of 600 on the Gaokao, reflecting the foundational academic proficiency required for high school education. This score is set to ensure that students entering high school are prepared for the academic challenges ahead and to maintain the standards of the educational institutions in Sichuan.