Series: The Complete Games of Hashimoto Utaro (6 volumes)
Author/Editor: Hashimoto Utaro 橋本宇太郎
Publisher: Chikumashobo 筑摩書房
Format: Clothbound hardcover in slipcase
Publisher Recommended Price: JPY7000 each
Hashimoto Utaro was a professional go player who founded the Kansai Kiin in 1950. He played Iwamoto Kaoru in the famous atomic bomb game (http://senseis.xmp.net/?AtomicBombGame).
He was also a prolific composer of tsumegos who wrote his own interpretations of several classics such as Gokyo Shumyo and Gengen Gokyo. He has written many other instructional go books as well.
Long out of print and difficult to obtain.