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math.OC2026
An Integer Linear Programming Model for the Evolomino Puzzle
Andrei V. Nikolaev, Yuri A. Myasnikov
Evolomino is a pencil-and-paper logic puzzle published by the Japanese company Nikoli, renowned for culture-independent puzzles such as Sudoku, Kakuro, and Slitherlink. Its name re…
math.OC2022
Finding a second Hamiltonian decomposition of a 4-regular multigraph by integer linear programming
Andrei V. Nikolaev, Egor V. Klimov
A Hamiltonian decomposition of a regular graph is a partition of its edge set into Hamiltonian cycles. We consider the second Hamiltonian decomposition problem: for a 4-regular mul…