Koshu

Kōshu (koushu, 好手) is a go term frequently used in Japanese Go publications, such as Go Weekly, to refer to a move that is considered to be clever or particularly skillful. Literally it means good play. Less impressive than a myoshu (妙手).

References:

• "36th Meijin Title, 20th League Match between Shinji Takao and Tomochika Mizokami: Mizokami's rapid-fire clever play" in Asahi.com ( http://www.asahi.com/igo/meijin/PND36_20_01.html [J], 2011-06-02, retrieved on 2011-12-19)
• Defined in Goo online dictionary http://dictionary.goo.ne.jp/leaf/jn2/73209/m0u/