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In reverse chronological order and stratified by division, here is the list of released problems, not including contributions to training camp selection tests:

• Triples of Cows, Platinum, US Open 2023: tree dynamic programming with disjoint set union data structure and coloring argument, ft. Benjamin Qi
• Quantum Moochanics, Gold, February 2024: sweep line algorithm with algebraic and number theoretic observations, ft. Benjamin Qi
• Tree Merging, Gold, US Open 2023: tree dynamic programming with tree merging
• Barn Tree, Silver, December 2022: constructive tree depth-first search with memoization, serving as a bridge to tree dynamic programming in higher divisions
• Air Cownditioning II, Bronze, January 2023: subset generation via recursion/bitmasking and array min/max updates, ft. Eric Hsu
• Moo Operations, Bronze, January 2023: reverse engineering minimum solution with string processing
• Photoshoot, Bronze, US Open 2022: challenging ad hoc minimization with greedy string processing