Card game masters claim that careful analysis of the opponent’s combinations is a key to winning, enabled by the key capabilities in game theory data science. Anastasia Erastova, currently a data scientist at BNP Paribas' New York office, graduated in 2018 from ICEF BSc with honors and the title of Russia’s Bridge Vice-Champion. In her interview to Success Builder Anastasia explains why math and card games are entwined, what makes studying next door to Wall Street beneficial, and how mathematics students can get a work visa for the USA.