Rudratova jezdcova šachová procházka. Elementary Mathematics Education Journal, [S. l.], v. 6, n. 2, 2024. DOI: 10.5507/emej2024-6-2-486. Disponível em: https://journals.upol.cz/EMEJ/article/view/486. Acesso em: 14 jun. 2026.