Kei Iwasa

• Fuseki seiyō
• Fuseki tsūkai
• Igo hiketsu, sensō yōgi
• Igo jōseki tsūkai
• Igo no tebiki
• Jissen ōyō fuseki shōkai
• Jōseki kuzushi
• Jōseki tsūkai
• Katachi to tesuji
• Okigo fuseki tsūkai
• Okigo yonshi kara kyūshi hisshōhō
• Saishin kōhyō okigo ishidate kihan