http://www.amazon.co.jp/exec/obidos/ASIN/4839929017/ref=nosim/booksbyisbn-22
ひと目でわかる「本筋・俗筋」対照表 (マイコミ囲碁文庫シリーズ) [単行本(ソフトカバー)]
Google translate suggests that I have purchased "At a glance "bad style mutton" sheet (Go Maikomi paperback series)". I'm not really sure what mutton has to do with go, so I'm hoping someone can tell me what I've purchased. The book itself seems mostly to be tesuji problems, from what I've seen. I don't know any Japanese, but I can usually tell the right answer from wrong in the diagram, so I'm not too worried