Concours D'algebre (198x) (C & D Missenard) ROM Download for Thomson MO5 (). Concours D'algebre (198x) (C & D Missenard) game is available to play online and download only on Roms Games. Concours D'algebre (198x) (C & D Missenard) ROM for Thomson MO5 download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.