![](https://cdn.animecharacters.io/images/anime/large/7276-a0a7f561.jpg)
Format
TV
Episodes
25
Episode Duration
25 min per ep
Status
Finished Airing
Premiered
Fall 2013
Aired
2013-10-06 to 2014-03-23
Source
Original
Rating
PG-13 - Teens 13 or older
Genres
Action
Mystery
Strategy Game
High Stakes Game
Studios
Sunrise
Producers
NHK
Licensors
Sentai Filmworks
Phi Brain: Kami no Puzzle - Shukuteki! Rätsel-hen (ファイ・ブレイン 〜神のパズル 宿敵!レイツェル編)
"Are puzzles really necessary in this world?" In order to restore Jin's memory, Kaito and his friends go on a puzzle-viewing journey to England. As they're walking through the underground maze beneath the church, where young Kaito and Rook first met Jin, a mysterious girl appears in front of them. Jin calls the girl by the name "Raetsel". It seems they know each other. However, she suddenly disappears and takes Jin with her. What's more, the traps in the underground maze are activated and start coming after Kaito and his friends. (Source: www9.nhk.or.jp)