This is a collection of past mathematics exam questions from the University of Tsukuba, covering the years 2009 to 2023. There are no noticeable marks, and any writing has been erased. * Regarding the writing: I marked the numbers of the problems I couldn't solve on about three years' worth of exams with a triangle. There is no other writing. I purchased the past exam questions from 2009 and 2010 early on, as they are harder to obtain compared to the 2024 and 2025 versions. I didn't use them much, as I planned to use them for this year's secondary exam preparation. Thank you for looking.