Class 1-B's Great Operation!

Chronology
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Episode 460 (Int. Episode {{{int-episode}}})
Information
Title:	Class 1-B's Great Operation!
Japanese title:	1年B組大作戦! (Ichi-nen B-Gumi Daisakusen)
Original airdate:	January 15, 2007 March 26, 2011 (Remastered version)
Season:	15
Manga source:	Volume 53: Files 5-6 (548-549)
Case
Cast:	Conan Edogawa Ai Haibara Detective Boys Sumiko Kobayashi
Case solved by:	Conan Edogawa Ai Haibara Detective Boys
Next Conan's Hint:	Picture frame
Staff
Director:	Masato Sato
Organizer:	Hisako Tsuji
Storyboard:	Hisako Tsuji
Episode director:	Takahiro Okada
Animation director:	Keiko Sasaki (chief) Katsutoshi Kobayashi
Music
Opening song:	Kumo ni Notte
Closing song:	Shiroi Yuki

Characters introduced

Maria Higashio
	Teitan Elementary student

Takuma Sakamoto
	Teitan Elementary student

Cast

Characters
Conan Edogawa Ai Haibara Ayumi Yoshida Genta Kojima Mitsuhiko Tsuburaya Sumiko Kobayashi

Case

Situation

The teacher of the Detective Boys decides to give the class a mental test. Conan is called by the teacher so the class must solve it without him. They solve it with the help of two silent out-casted students. It turns out it was a plan to include the new students so they feel more involved.

People

Takuma Sakamoto
	Teitan Elementary student

Maria Higashio
	Teitan Elementary student

Resolution

  Show spoilers »

Numbers were assigned to members of the class: Mitsuhiko got the 1, Ayumi the 2, Conan the 3, Maria Higashio the 4, Genta the 5, Takuma Sakamoto the 6. Genta's number was the only one to be red. The students then found a paper with dice numbers, in the order 3-1-6-2-4-5, the 1 being the only red. Actually, the students' names were supposed to be aligned as in a shiritori game (where the last syllable of a word is the syllable that starts the following word). Genta's number was red; as a result, he was the first in the game. The game led the names to be aligned in this order: Genta (1) - Takuma (2) - Maria (3) - Ayumi (4) - Mitsuhiko (5) - Conan (6). Those last numbers order were assosciated with the dice numbers and the assigned numbers.

• 3 - Maria - 4
• 1 - Genta - 5
• 6 - Conan - 3
• 2 - Takuma - 6
• 4 - Ayumi - 2
• 5 - Mitsuhiko - 1

The students then counted the syllables in their names, and picked the one corresponding to the assigned numbers, before aligning them in the previous order. The solution of the code was "Ongakushitsu" (music room).

• Higashio Maria - 4 - O
• Kojima Genta - 5 - N
• Edogawa Conan - 3 - Ga
• Sakamoto Takuma - Ku
• Yoshida Ayumi - Shi
• Tsuburaya Mitsuhiko - Tsu

Trivia

• Conan gets wrong about stroke order of the kanji for "woman".
• In this episode, Conan doesn't explain the code resolution, but only the "culprit"'s motive.

Remastered version

A remastered version of this case was aired on March 26, 2011.

See also

• Season 15