Gregori Kaidánov (Ukraine, 1959) is an excellent example of what many high-level Soviet chess players suffered to rebuild their lives in the United States, where he emigrated with his wife and three children in 1991. It was his second attempt, despite the trauma suffered in the first (summer of 1990): two robberies by assault in the street during its first day in New York; In addition to his personal belongings and savings, Kaidanov lost ten years of written analysis. But he insisted, and obtained the help (essential to obtain the residence visa) of the organizer Ken Troutman, who also found him a job in Lexington (state of Kentucky). The investment was very good for his host country: he won the World Open in Philadelphia and the US Championship in 1992; the gold medal, with the national team, in the 1993 World Cup of Nations; and the silver one at the 1998 Chess Olympiad; in addition to the 2002 Moscow Aeroflot, among other important tournaments.
Kaidanov is today one of the most important coaches in the USA. The sheer depth of his understanding of chess is well appreciated in the game in this video (versus Onischuk, at the 2002 Chicago Open), a masterclass on a bishop becoming the owner of the board.