Games Invented by Sergey Sirotkin on Game Courier
- Big Chess. Ordinary chess pieces on an elongated 8 x 14 board with three times as many bishops and two times as many knights. Author: Jeremy Gabriel Good. Inventor: Sergey Sirotkin.
- Building chess. Add a square after every move. Author: Abdul-Rahman Sibahi. Inventor: Abdul-Rahman Sibahi and Sergey Sirotkin.
- Ladder Chess. Non-competing 40 Square contest entry with scaling board. Author: Jeremy Gabriel Good. Inventor: Sergey Sirotkin.