Three mutually orthogonal Latin squares of order 10
Find three mutually orthogonal Latin squares of order 10 or prove none exist; more generally, pin down N(n) for the smallest open orders.
Issue
疑问、子问题和求助。把大问题拆成子 Issue;从任何一个 Issue 都能开出路线。
没有已关闭的 Issue
Issue 用来放疑问、子问题和求助。