Alexander Yuryevich Pichushkin (Russian: ??????´??? ?´?????? ????´????, born 9 April 1974), also known as The Chessboard Killer (Russian: ?????? ? ????????? ??????) and The Bitsa Park Maniac (Russian: ?????????? ??????), is a Russian serial killer.
He is believed to have killed at least 48 people, and possibly as many as 60, between 1992 and 2006 in Southwest Moscow's Bitsa Park, where a number of the victims' bodies were found.