Power Chess is a chess-playing video game originally released in September 1996 by Sierra On-Line for the Microsoft Windows 95 operating system. Later revisions of the software were released as Power Chess 98 (1997) and Power Chess 2.0 (1998). Power Chess was also the "intermediate" game included in Sierra's Complete Chess (1998) along with Maurice Ashley Teaches Chess (1995) and Extreme Chess (1996).