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Continue to Chat渡辺和史四段、伊藤匠四段が五段に昇段 https://blog.40ch.net/2022/03/11/kazushi-watanabe-4th-dan-takumi-ito-4th-dan-promoted-to-5th-dan/
渡辺和史四段、伊藤匠四段が五段に昇段 https://blog.40ch.net/2022/03/11/kazushi-watanabe-4th-dan-takumi-ito-4th-dan-promoted-to-5th-dan/