Albert Einstein was a German-born theoretical physicist who is widely regarded as one of the greatest scientists in history. He was born on March 14, 1879, in Ulm, in the Kingdom of Württemberg in the German Empire. Einstein is best known for developing the theory of relativity, which revolutionized our understanding of space, time, and gravity.

His most famous equation, (E=mc^2), showed the equivalence of mass and energy, laying the groundwork for advancements in nuclear physics and leading to the development of nuclear energy and atomic bombs.

Einstein also made significant contributions to quantum mechanics and statistical mechanics, earning the Nobel Prize in Physics in 1921 for his explanation of the photoelectric effect.

Throughout his life, Einstein was an outspoken advocate for civil rights, pacifism, and scientific freedom. He left Nazi Germany in 1933 due to persecution against Jewish intellectuals and settled in the United States, where he worked at the Institute for Advanced Study in Princeton, New Jersey.

Albert Einstein died on April 18, 1955, in Princeton, New Jersey, leaving behind a legacy of scientific breakthroughs and profound insights into the nature of the universe.

While Albert Einstein, the renowned physicist, was known to have played chess and enjoyed the game as a recreational activity, there is no specific information available about his favorite play or preferred opening variations. Einstein’s involvement with chess was more casual, and he did not pursue the game competitively or extensively. Therefore, it’s challenging to pinpoint his favorite play or specific strategies in chess.

Albert Einstein, the renowned physicist, was not a professional chess player, and therefore, he did not have an Elo rating. Elo ratings are a measure of competitive chess players’ strength and are assigned to players who participate in rated tournaments sanctioned by chess federations. Since Einstein did not compete in such tournaments professionally, his chess playing strength was not officially rated using the Elo system. While he enjoyed playing chess as a recreational activity, his chess skill level in terms of Elo rating is not documented.