It Is a Game, No Is Not. It’s Much More than a Game Sándor Ferenc Illés • Liceul Tehnologic Gheorghe Șincai, Tg. Mureș (Mureş) • România
About Chess, Math and Economics Accounting Sándor Ferenc Illés • Liceul Tehnologic Gheorghe Șincai, Tg. Mureș (Mureş) • România