🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsEntityQ5079674· pop 5· linked from 8 articlesCharles KalmeLatvian-American chess playerConnectionsSoviet UnionConceptUnited StatesCountryGermanyCategories1939 births2002 deaths20th-century American chess players20th-century American mathematicians21st-century American mathematiciansAmerican contract bridge playersChess players from RigaLatvian chess playersNew York University alumni