While I'm not fluent in German, unless there's something unusual attached to the adjectives, how can one get an impression of the quote if they're not aware of the situation in which someone said:
"... although it is clear that the game of the German master was characterized by greater depth and ingenuity before the even skill of the cold-blooded American."
Not knowing the situation, we don't know if the American is called "cold blooded" because he calmly defended against a strong attack, or if the German master was giving a demonstration on Death Row in an American prison, or if he did not like Americans, etc.
who can give their impression (not a translation) of the following quote:
" ...wenngleich feststeht, dass das Spiel des deutschen Meisters sich durch größere Tiefe und Genialität vor der gleichmäßigen Geschicklichkeit des kaltblütigen Amerikaners vorteilhaft auszeichnete."
For example, what appears to be the impressions that the author wants to convey about the German player in contrast to the American player?
I'm more interested in the author's attitude than in his words themselves.