Courtyard Conundrum was first created for QUAKE III Arena by Michael 'Casey' Goodhead and Dave 'Zoid' Kirsch, the original Threewave team, and has been a popular arena for CTF matches ever since its release.
Like Bloodlust, Courtyard Conundrum was originally created and released in 2000 as part of a 3-pack of CTF maps for the original Quake III Arena.