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受賞

2024/12 マロニエ賞(兵庫県知事賞) 数理科学研究会
2024/4 啓明学院院長特別賞 眞部 光
2023/11 GPW-23 研究奨励賞(最年少受賞) 眞部 光
2023/10 2023 IEEE GCCE Junior Challenger Award(最年少受賞) Hikaru Manabe, Shoei Takahashi
2023/4 研究部特別発表会最優秀賞 眞部 光
2023/3 第49回GI研究会若手奨励賞(最年少受賞) 眞部 光
2022/3 武蔵野大学数理工学コンテスト最優秀賞 眞部 光, 高橋 祥英, 青野 大志, 立花 優季

論文(査読付き) 19本

Josephus Nim
Shoei Takahashi, Hikaru Manabe, Ryohei Miyadera, -, Notes on Number Theory, Discrete Mathematics 31(1), pp.98-112, 2025
Restricted Partizan Chocolate Games
Hikaru Manabe, Ryohei Miyadera, Aoi Murakami, Shouei Takahashi, Akito Tujii, -, ゲームプログラミングワークショップ2023論文集 Vol. 2023 pp.183-190, 2023

論文(査読なし) 3本

Maximum Nim and Josephus Problem
Shoei Takahashi, Yuki Tokuni, Akito Tsujii, Hikaru Manabe, Ryohei Miyadera, -, 研究報告ゲーム情報学（GI）, Vol. 2024-GI-52 No.10, pp. 1-7, 2024
Josephus Nim
Shoei Takahashi, Hikaru Manabe, Ryohei Miyadera, Aoi Murakami, -, 研究報告ゲーム情報学（GI）, Vol. 2024-GI-51 No.9, pp. 1-6, 2024
Partisan Chocolate Game
Tomoaki Abuku, Hikaru Manabe, Richard J. Nowakowski, Carlos P. Santos, Koki Suetsugu, -, 研究報告ゲーム情報学（GI）, Vol. 2023-GI-49 No.7, pp. 1-7, 2023

学会発表 41件

Drop Two Rooks
Ryohei Miyadera, Hikaru Manabe, Akito Tsujii, -, International Conference on Combinatorial Game Theory in Japan, 2026
Additive Subtraction
Urban Larsson, Anjali Bhagat, Hikaru Manabe, Takahiro Yamashita, -, International Conference on Combinatorial Game Theory in Japan, 2026
Silver Dollar Game with a Pass
Ryohei Miyadera, Ryuuto Hara, Akihiro Hamada, Eisuke Shimizu, Hikaru Manabe, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Variants of Silver Dollar Game
Ryouhei Miyadera, Enchong Li, Akito Tsujii, Hikaru Manabe, Kahori Komaki, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Combinatorial Games with a Pass
Ryouhei Miyadera, Hikaru Manabe, Enchong Li, Akito Tsujii, Aoi Murakami, Kahori Komaki, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Variants of Nim with a Forced Pass
Ryouhei Miyadera, Ryuuto Hara, Akihiro Hamada, Eisuke Shimizu, Hikaru Manabe, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Digraph Yama Nim
眞部光, 末續鴻輝, 山下貴央, -, 第55回ゲーム情報学研究会, 2025
Digraph Yama Nim
眞部光, 山下貴央, 末續鴻輝, -, 第10回広島岡山代数＋ゲームシンポジウム, 2025
A Maximum Amalgamation Nim
Takane Suji, Hikaru Manabe, Ryohei Miyadera, Unchone Lee, -, The 26th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3), 2024
A Variant of Maximum Nim
Keita Mizugaki, Aoi Murakami, Akito Tsujii, Hikaru Manabe, Ryohei Miyadera, -, The 26th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3), 2024
Maximum Nim and Josephus Problem
Shoei Takahashi, Hikaru Manabe, Ryohei Miyadera, -, The 26th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3), 2024
Josephus Nim
Shoei Takahashi, Hikaru Manabe, Aoi Murakami, Ryohei Miyadera, -, 第51回ゲーム情報学研究会, 2024
Restricted Nim
Hikaru Manabe, Keita Mizugaki, Shoei Takahashi, -, Japan Combinatorial Game Theory Workshops with Alda Carvalho and Carlos Santos, 2024
Restricted Partizan Chocolate Games
Hikaru Manabe, Ryohei Miyadera, Aoi Murakami, Shoei Takahashi, Akito Tujii, -, 第28回ゲームプログラミングワークショップ (GPW-23), 2023
Partizan Restricted Chocolate Games
Shoei Takahashi, Aoi Murakami, Hikaru Manabe, Ryohei Miyadera, -, The 25th Indonesia-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (IJCDCG^3), 2023
A Variant of Restricted Nim
Keita Mizugaki, Hikaru Manabe, Ryohei Miyadera, -, The 25th Indonesia-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (IJCDCG^3), 2023
Partisan Chocolate Games
Tomoaki Abuku, Hikaru Manabe, Richard J. Nowakowski, Carlos P. Santos, Koki Suetsugu, -, 第49回ゲーム情報学研究会, 2023
Restricted Nim with a Pass
Ryohei Miyadera, Hikaru Manabe, Aditi Singh, -, The 24th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3 2022), 2022
Arithmetic Mean and Geometric Mean
Yuki Tokuni, Ryohei Miyadera, Hikaru Manabe, Aoi Murakami, Shouei Takahashi, -, The 24th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3 2022), 2022
Chocolate Games and Restricted Nim
Ryohei Miyadera, Hikaru Manabe, Kousei Suzuki, Taishi Aono, Shouei Takahashi, Sohta Kannan, -, The 23rd Thailand-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (TJCDCG^3 2020+1), 2021

講演

2025/11 組合せゲーム理論特別講義 IIT Mandi
2025/11 組合せゲーム理論特別講義 IIT Ropar
2025/11 組合せゲーム理論特別講義 IIT Delhi
2025/11 招待講演 "Exploration in Combinatorial Game Theory" Vidyashilp University
2025/10 When Maximum Restricted Nim meets Josephus Problem IIT Bombay IEOR
2025/10 特別講義 "Topics in Combinatorial Games" IISER Pune
2024/7 「Wolfram言語で探究的な学びを」 Wolfram Japan
2024/3 招待講演「チョコレート問題」 広島・岡山代数学セミナー(広島大学)
2024/3 招待講演「制限付き石取りゲーム・Symbolic Regression」 広島・岡山代数学セミナー(広島大学)
2023/7 キャリア講演「数理科学研究の魅力」 啓明学院中学校講演会

メディア掲載

2025/5 学研教室の卒業生　眞部さん 学研エデュケーショナル
2023/8/29 未解決問題の宝庫！？現役高校生が誘う「数学的必勝法」の世界【橋本幸治の理系通信】 テレビ東京
2023/8/16 数学難問を証明、海外誌に掲載へ　啓明学院中高の研究会が4論文 神戸新聞
2023/2/17 田辺眞人のまっことラジオ”2月17日の人物事典” ラジオ関西
2021/9/17 田辺眞人のまっことラジオ “9月17日の人物事典” ラジオ関西
2021/9/5 専門家も驚いた　啓明学院が数学の国際学会で発表 神戸新聞

Awards

Dec 2024 Governor's Prize, Hyogo Prefecture Keimei Mathematical Science Club
Apr 2024 President Special Award, Keimei Gakuin Hikaru Manabe
Nov 2023 GPW-23 Research Encouragement Award (Youngest Recipient) Hikaru Manabe
Oct 2023 2023 IEEE GCCE Junior Challenger Award (Youngest Recipient) Hikaru Manabe, Shoei Takahashi
Apr 2023 KdEi Academic Research Club Research Presentation Grand Prize Hikaru Manabe
Mar 2023 The 49th meeting of the Game Informatics Research Group Young Researcher Award (Youngest Recipient) Hikaru Manabe
Mar 2022 Grand Prize in the Musashino University Mathematical Engineering Contest Hikaru Manabe, Shoei Takahashi, Taishi Aono, Yuki Tachibana

Papers (Peer Reviewed): 19

Josephus Nim
Shoei Takahashi, Hikaru Manabe, Ryohei Miyadera, -, Notes on Number Theory, Discrete Mathematics 31(1), pp.98-112, 2025
Restricted Partizan Chocolate Games
Hikaru Manabe, Ryohei Miyadera, Aoi Murakami, Shouei Takahashi, Akito Tujii, -, ゲームプログラミングワークショップ2023論文集 Vol. 2023 pp.183-190, 2023

Papers (Non Peer Reviewed): 3

Maximum Nim and Josephus Problem
Shoei Takahashi, Yuki Tokuni, Akito Tsujii, Hikaru Manabe, Ryohei Miyadera, -, 研究報告ゲーム情報学（GI）, Vol. 2024-GI-52 No.10, pp. 1-7, 2024
Josephus Nim
Shoei Takahashi, Hikaru Manabe, Ryohei Miyadera, Aoi Murakami, -, 研究報告ゲーム情報学（GI）, Vol. 2024-GI-51 No.9, pp. 1-6, 2024
Partisan Chocolate Game
Tomoaki Abuku, Hikaru Manabe, Richard J. Nowakowski, Carlos P. Santos, Koki Suetsugu, -, 研究報告ゲーム情報学（GI）, Vol. 2023-GI-49 No.7, pp. 1-7, 2023

Conference Presentations: 41

Drop Two Rooks
Ryohei Miyadera, Hikaru Manabe, Akito Tsujii, -, International Conference on Combinatorial Game Theory in Japan, 2026
Additive Subtraction
Urban Larsson, Anjali Bhagat, Hikaru Manabe, Takahiro Yamashita, -, International Conference on Combinatorial Game Theory in Japan, 2026
Silver Dollar Game with a Pass
Ryohei Miyadera, Ryuuto Hara, Akihiro Hamada, Eisuke Shimizu, Hikaru Manabe, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Variants of Silver Dollar Game
Ryouhei Miyadera, Enchong Li, Akito Tsujii, Hikaru Manabe, Kahori Komaki, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Combinatorial Games with a Pass
Ryouhei Miyadera, Hikaru Manabe, Enchong Li, Akito Tsujii, Aoi Murakami, Kahori Komaki, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Variants of Nim with a Forced Pass
Ryouhei Miyadera, Ryuuto Hara, Akihiro Hamada, Eisuke Shimizu, Hikaru Manabe, -, The 27th China-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (CJCDCG^3 2025), 2025
Digraph Yama Nim
眞部光, 末續鴻輝, 山下貴央, -, 第55回ゲーム情報学研究会, 2025
Digraph Yama Nim
眞部光, 山下貴央, 末續鴻輝, -, 第10回広島岡山代数＋ゲームシンポジウム, 2025
A Maximum Amalgamation Nim
Takane Suji, Hikaru Manabe, Ryohei Miyadera, Unchone Lee, -, The 26th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3), 2024
A Variant of Maximum Nim
Keita Mizugaki, Aoi Murakami, Akito Tsujii, Hikaru Manabe, Ryohei Miyadera, -, The 26th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3), 2024
Maximum Nim and Josephus Problem
Shoei Takahashi, Hikaru Manabe, Ryohei Miyadera, -, The 26th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3), 2024
Josephus Nim
Shoei Takahashi, Hikaru Manabe, Aoi Murakami, Ryohei Miyadera, -, 第51回ゲーム情報学研究会, 2024
Restricted Nim
Hikaru Manabe, Keita Mizugaki, Shoei Takahashi, -, Japan Combinatorial Game Theory Workshops with Alda Carvalho and Carlos Santos, 2024
Restricted Partizan Chocolate Games
Hikaru Manabe, Ryohei Miyadera, Aoi Murakami, Shoei Takahashi, Akito Tujii, -, 第28回ゲームプログラミングワークショップ (GPW-23), 2023
Partizan Restricted Chocolate Games
Shoei Takahashi, Aoi Murakami, Hikaru Manabe, Ryohei Miyadera, -, The 25th Indonesia-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (IJCDCG^3), 2023
A Variant of Restricted Nim
Keita Mizugaki, Hikaru Manabe, Ryohei Miyadera, -, The 25th Indonesia-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (IJCDCG^3), 2023
Partisan Chocolate Games
Tomoaki Abuku, Hikaru Manabe, Richard J. Nowakowski, Carlos P. Santos, Koki Suetsugu, -, 第49回ゲーム情報学研究会, 2023
Restricted Nim with a Pass
Ryohei Miyadera, Hikaru Manabe, Aditi Singh, -, The 24th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3 2022), 2022
Arithmetic Mean and Geometric Mean
Yuki Tokuni, Ryohei Miyadera, Hikaru Manabe, Aoi Murakami, Shouei Takahashi, -, The 24th Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG^3 2022), 2022
Chocolate Games and Restricted Nim
Ryohei Miyadera, Hikaru Manabe, Kousei Suzuki, Taishi Aono, Shouei Takahashi, Sohta Kannan, -, The 23rd Thailand-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (TJCDCG^3 2020+1), 2021

Lectures

Nov 2025 Invited Lecture on Combinatorial Game Theory IIT Mandi
Nov 2025 Invited Lecture on Combinatorial Game Theory IIT Ropar
Nov 2025 Invited Lecture on Combinatorial Game Theory IIT Delhi
Nov 2025 Invited Talk: "Exploration in Combinatorial Game Theory" Vidyashilp University
Oct 2025 When Maximum Restricted Nim meets Josephus Problem IIT Bombay IEOR
Oct 2025 Invited Talk: "Topics in Combinatorial Games" IISER Pune
Jul 2024 Exploratory Learning with the Wolfram Language Wolfram Japan
Mar 2024 Invited Talk: "The Chocolate Problem" Hiroshima-Okayama Algebra Seminar
Mar 2024 Invited Talk: "Restricted Nim and Symbolic Regression" Hiroshima-Okayama Algebra Seminar
Jul 2023 The Appeal of Mathematical Science Research Keimei Gakuin Junior High School Lecture

Media Coverage

May 2025 Graduate of Gakken Classroom, Mr.Manabe Gakken Educational
29 Aug 2023 The World of "Mathematical Winning Strategies",Koji Hashimoto’s Science Report TV Tokyo
16 Aug 2023 Proof of a Challenging Math Problem to Be Published in an International Journal, Keimei Gakuin Kobe Shimbun
17 Feb 2023 Makkoto Radio with Makoto Tanabe: February 17 Personalities Radio Kansai
17 Sep 2021 Makkoto Radio with Makoto Tanabe: September 17 Personalities Radio Kansai
5 Sep 2021 Keimei Gakuin Presents at an International Mathematics Conference Kobe Shimbun