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Kazuo Manabe (真部 一男, Manabe Kazuo, February 16, 1952  – November 24, 2007) was a Japanese professional shogi player, ranked 9-dan.

Promotion history

Manabe's promotion history is as follows:

• 1967: 6-kyū
• April 1, 1973: 4-dan
• April 1, 1976: 5-dan
• April 1, 1978: 6-dan
• April 1, 1980: 7-dan
• April 1, 1988: 8-dan
• November 24, 2007: Died as an active player
• November 24, 2007: 9-dan (conferred posthumously)

The B-42 "Phantom" move and Masuda Special Prize

Manabe is widely remembered for a move he theorized but did not play contesting his last professional game, on October 30, 2007, against Masayuki Toyoshima in a C2 ranking match. Manabe, in poor health, resigned after the 33rd move. Later that day, he confided to his colleague Hiroshi Kobayashi that he had come up with the B-42 move and believed he might have won had he played it. However, he feared this would extend the match against Toyoshima and felt he could not endure a longer game. When he was later interviewed, Toyoshima acknowledged that the move would indeed have required a long time to formulate a response. Kobayashi did not appreciate the move at the time, but his conversations with Isao Nakata about the potential move began to draw public attention.

On November 27, a wake was held for Manabe. Simultaneously, a game position identical to Toyishima's match was reached in the C2 ranking match between Yasuaki Murayama and Nobuyuki Ōuchi. Ōuchi, playing White (gote), played Manabe's ... B-42. Ōuchi would later claim he was not aware of the move's relationship to Manabe's last game. Much as Manabe had predicted, Murayama took over 110 minutes to respond to B-42. Though Murayama ultimately won the match, when Ōuchi was later told about Manabe's game with Toyoshima, he said "I should have won." Amazed at the move's recurrence during Manabe's wake, Kobayashi claimed it was a kind of miracle. The coincidence quickly became a topic of conversation in the Shogi world, and the move soon became known as the "splendid, phantom move" (幻の妙手, Maboroshi no myōshu).

The move was proposed for consideration for the then-upcoming Masuda Special Award, which was granted to Manabe posthumously in 2008.

References

1. "Manabe Kazuo Hachidan ga Seikyo/Heisei Jūkyūnen Jūichigatsu Nijyūyokka Hizuke de Kudan wo Tsuizō" 真部一男八段が逝去/平成19年11月24日付で九段を追贈 [Kazu Manabu has died. Posthumously promoted to 9d on November 24, 2007.] (in Japanese). Japan Shogi Association. November 24, 2007. Retrieved October 16, 2018.
2. "Kishi Dētabēsu: Manabe Kazuo" 棋士データベース: 真部一男 [Professional Shogi Player Database: Kazuo Manabe] (in Japanese). Japan Shogi Association. Retrieved October 16, 2018.
3. "Kishi Dētabēsu: Manabe Kazuo Shōdan Rireki" 棋士データベース: 真部一男 昇段履歴 [Professional Shogi Player Database: Kazuo Manabe Promotion History] (in Japanese). Japan Shogi Association. Retrieved October 7, 2018.
4. ^ "師匠との思い出・小林宏七段インタビュー vol.4 (Memories of a teacher: An interview with Hiroshi Kobayashi, vol. 4". Japan Shogi Association. Retrieved 8 October 2018.
5. "将棋大賞受賞者". Japan's Shogi Association. Retrieved 8 October 2018.

• Japanese shogi players
• Shogi players
• 1952 births
• 2007 deaths
• Professional shogi players from Tokyo
• People from Arakawa, Tokyo