碧巌録
The two best known koan-collections (in the West) are the "Gateless Gate" and the "Blue Cliff Record". "The Gateless Gate" (Chinese: 無門關 Wumenguan; Japanese: Mumonkan) is a collection of 48 kōans and commentaries published in 1228 by Chinese monk Wumen (無門) (1183–1260). The title may be more accurately rendered as "Gateless Barrier" or "Gateless Checkpoint"). The "Blue Cliff Record" (Chinese: 碧巖錄 Bìyán Lù; Japanese: Hekiganroku) is a collection of 100 kōans compiled in 1125 by Yuanwu Keqin (圜悟克勤 1063–1135).