74. Three friends met: Belov, Chernov, and Ryzhov. One of them is a blonde, another is a brunette, and the third is a redhead. The brunette said to Belov: "None of us have hair color that matches our last name." What is the hair color of each of them?
74. Belov is not a blonde, since his hair color cannot match his surname; he is also not a brunette, as he himself talked to a brunette. Therefore, he is a redhead. Chernov is neither a brunette nor a redhead. Therefore, he is a blonde. The only remaining possibility is: Ryzhov is a brunette.