TCPJ23580961+5502508: new WZ Sge-type dwarf nova Kyoto Univ. Obs. observed TCPJ23580961+5502508 on 30th Sep. We detected early superhumps with a period of ~0.060 d, and an amplitude of 0.2 mag! Therefore TCPJ23580961+5502508 is a new WZ Sge-type dwarf nova, and also has one of the largest early superhump amplitude. Follow-up photometry is strongly encouraged. Best,Yusuke -- ---------------------------------------------- Kyoto University, Graduate School of Department of Astronomy, PhD student Yusuke TAMPO MAIL: tampo@kusastro.kyoto-u.ac.jp ----------------------------------------------