Lyudmila Pavlichenko
Lyudmila Mikhailovna Pavlichenko (; 12 July 191610 October 1974) was a Soviet sniper in the Red Army during World War II, credited with 309 kills. She is regarded as one of the top military snipers of all time and the most successful female sniper in history.
Alexander Pichushkin
Pichushkin committed his first known murder as a student in 1992 and stepped up his crimes in 2001. Russian media has speculated that Pichushkin was motivated, in part, by a macabre competition with another notorious Russian serial killer, Andrei Chikatilo, the 'Rostov Ripper', who was convicted in 1992 of killing 53 children and young women over a 12-year period. Pichushkin has said his aim was to kill 64 people, the number of squares on a chessboard. He later recanted this statement, saying that he would have continued killing indefinitely had he not been stopped.