This is the 8799th most frequent Polish word.
ruuda
"Ruuda" is not a Polish word.
In this sentence, 'Ruuda' is used as a proper noun, possibly referring to a person's name.
Ruuda zawsze wygrywa w szachy.
Ruuda always wins in chess.
Here, 'ruuda' appears to denote an item or entity related to an athletics context, though clarification might be needed depending on the actual word usage.
Widziałem ruudę na zawodach lekkoatletycznych.
I saw a ruuda at the athletics competition.
In this case, 'ruuda' is related to a specific term in the art domain describing a color shade.