Similar to イルミネーション問題

Constraint satisfaction problem

Duality (optimization)

Dissection problem

Birthday problem

Chinese postman problem

Halting problem

Dirichlet problem

Tomahawk (geometry)

Dubins–Spanier theorems

Knapsack problem

Napkin ring problem

Nim-sum

Network simplex algorithm

Hamiltonian path problem

Topswops

Bin packing problem

Fagnano's problem

Fermi problem

Subset sum problem

Brocard's problem

Well-posed problem

Class number problem

Mathematics

0.999...

Zero-dimensional space

Zero to the power of zero