Title: Calculating the Moon – A Tsumego Collection for Kyu to High Dan
算月―級位者から高段者までの詰碁集
Author/Editor: Tsukamoto Keiichi 塚本惠一
Publisher: Senko Corporation 亘香通商
Published: 1998
Format: softcover
ISBN: 978-4795254305
Publisher Recommended Price: JPY1500
Content: 120 problems composed by Tsukamoto Keiichi 塚本惠一
Part 1 The ABCs of Tsumego 詰碁のいろは (includes 50 elementary problems)
Part 2 Records Facing the Sun 日向の譜 (40 problems)
Part 3 Calculating the Moon 算月 (30 named problems for high dans)
Although Tsukamoto Keiichi 塚本惠一 is an amateur, he is recognized as a classical composer of tsumego in Japan.
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