Alexander Dmitrievich Petrov (Rus.Александр Дмитриевич Петров, February 12, 1794 in Biserovo – April 22, 1867 in Warszawa) was a Russianchess player who analyzed (with Carl Jaenisch) the Petrov's Defence. Jump to: navigation, search Russian (Russian: ÑÑÑÑкий ÑзÑк, russkij jazyk, listen [â¶]) is the most widely spoken language of Europe and the most widespread of the Slavic languages. ... Jump to: navigation, search February 12 is the 43rd day of the year in the Gregorian Calendar. ... 1794 was a common year starting on Wednesday (see link for calendar). ... Jump to: navigation, search April 22 is the 112th day of the year in the Gregorian calendar (113th in leap years). ... Jump to: navigation, search 1867 was a common year starting on Tuesday (see link for calendar). ... Warszawa can refer to: Warsaw, capital city of Poland Warszawa, a song written by David Bowie and Brian Eno off the album Low. ... A chess table is a table with a chessboard painted or engraved on it. ... Petrovs Defence (sometimes spelled Petroffs) is the chess opening 1. ...