Hiroshima Spring 2026

A scintillating Japanese national record average of 6.38 seconds from Kantaro Sakamoto in the 3x3x3 Cube set the benchmark at Hiroshima Spring 2026, delivering the standout performance of a packed one-day schedule. Beyond the headline numbers, the tournament ran with seamless precision thanks to the tireless dedication of the organizers, delegates, and local volunteers stationed at まなびの館ローズコム. Their coordination behind the scenes kept every group moving briskly through six rounds of play, laying the groundwork for a world-class speedcubing showcase.

Held on May 30, 2026, in Fukuyama, Hiroshima, Japan, the competition welcomed 62 competitors who tested their skills across five diverse events. Running a multi-discipline cubing competition in a single day demands relentless effort from the floor crew, who managed the scorekeeping, scrambling tables, and judging stations without missing a beat. Their diligence ensured that every participant had an optimal environment to pursue personal records and national milestones under standard World Cube Association conditions.

The premier 3x3x3 Cube final provided thrilling 3x3 results as Masaki Nishimura captured the championship title with a winning average of 7.27 seconds, backed by a best single of 6.61. Kantaro Sakamoto followed up his record-breaking form earlier in the day to secure second place overall with a 7.61 average. Yi-Fan Wu of Chinese Taipei earned the third spot on the podium with a 7.78 average, completing a fiercely contested final round that featured 61 total contenders across the day.

In the 3x3x3 One-Handed event, Takumi Kato led the 30-player field with a dominant 10.78 average, punctuated by a best single solve of 8.77 seconds. Masaya Nakamoto took second place with an average of 11.68 seconds, while Kantaro Sakamoto stepped onto his second podium of the weekend by taking third place with a 12.63 mark. The technical demands of one-handed solving highlighted the exceptional dexterity present across the Japanese contingent throughout the afternoon.

The blindfolded disciplines delivered incredible displays of concentration, where competitors must fully memorize puzzle states before executing their solutions without sight. Yuki Yamamoto dominated both events, securing first place in the 3x3x3 Blindfolded with a rapid 30.65 single, finishing ahead of Haruka Kitamura with 58.97 and Shogo Yamamoto with 37.35. Yamamoto also claimed the 3x3x3 Multi-Blind victory by solving 20 out of 29 cubes within the exact 1:00:00 time limit. Lucas Ichiro Yunomae of Brazil took second place with a flawless 9 out of 9 in 32:25, and Ryutaro Miyazaki rounded out the podium with a perfect 7 out of 7 in 46:52.

Away from the podiums, the spirit of speed cubing shone brightly through remarkable individual breakthroughs. Harumu Kurosaki entered a single event and shaved 19.9 percent off their previous benchmark, posting a 3x3x3 Cube personal best of 17.04 seconds after a previous best of 21.27. Misato Nishimura also made significant strides on the classic Rubik's Cube, dropping their personal best by 17.9 percent from 13.81 to 11.34 seconds. Yu Morita tackled two events and achieved a 23rd-place finish in 3x3x3 One-Handed, lowering their personal best by 15.3 percent to 29.44 seconds from 34.77. In the same event, Daichi Asanuma secured a 20th-place result while improving their best by 9.6 percent to 22.91 seconds, and Ryo Maeda improved their 3x3x3 Cube best by 9.7 percent to 21.12 seconds.

Fresh challenges also defined the day for several competitors taking on unfamiliar disciplines. Yuki Mochizuki entered three separate events, highlighted by a ninth-place finish in 3x3x3 Blindfolded on a first ever attempt of 1:45.53, alongside a 3x3x3 Multi-Blind personal best of 5 out of 8 solved in 1:00:00. Kaito Murakawa ventured into memory-based solving for the first time, notching sixth place in 3x3x3 Blindfolded with a first attempt time of 53.24 seconds. Meanwhile, Sota Fujii stepped up for a first ever attempt at 3x3x3 One-Handed, securing 22nd place with a time of 31.05 seconds across two entered events.

Tactical efficiency decided the 3x3x3 Fewest Moves competition, where solvers analyzed puzzle configurations to find the shortest possible solution sequence. Tomohiro Kobayashi earned top honors among 15 competitors with a winning single of 24 moves. The runner-up position was shared by Syunei Miyauchi and Tomoki Moriyama, who both registered 25 moves to secure matching second-place podium finishes in a tactical battle of wits.

As the final solves concluded at まなびの館ローズコム, Japan finished with 13 total podium places, joined by Brazil and Chinese Taipei with one podium each. The successful staging of Hiroshima Spring 2026 reflected the dedication of the community volunteers who kept every station operating smoothly from start to finish. With national records rewritten and numerous personal milestones achieved, the competitors and organizers closed out a memorable WCA competition in Fukuyama.

紙とペンを手に60分間の深い思考へと沈み込む3x3x3最少手数において、Tomohiro Kobayashi (小林知広)が叩き出した24手という鮮烈な記録が大会の幕開けを象徴しました。指先のスピードを競う種目とは対照的に、純粋な効率と理論の追求が求められるこの舞台で、Tomohiro Kobayashi (小林知広)はわずか1手の差でSyunei Miyauchi (宮内俊英)とTomoki Moriyama (森山智樹)の25手をかわし、見事に頂点へ立ちました。

2026年5月30日、広島県福山市のまなびの館ローズコムにて開催されたHiroshima Spring 2026には、総勢62名の選手が集結しました。Fukuyama, Hiroshima, Japanの会場では5種目6ラウンドにわたる熱戦が繰り広げられ、スピードキューブの瞬発力と論理的思考の双方が存分に発揮される充実した1日となりました。

メイン種目となったルービックキューブの3x3x3部門では、Masaki Nishimura (西村正輝)が決勝で7.27秒の平均タイムを揃えて優勝を飾りました。ベスト単発でも6.61秒をマークしたMasaki Nishimura (西村正輝)に対し、2位のKantaro Sakamoto (坂本貫太郎)が7.61秒、3位のYi-Fan Wu (吳亦凡)が7.78秒で表彰台に並びました。さらにKantaro Sakamoto (坂本貫太郎)はこの種目で6.38秒の日本記録となる平均タイムを樹立し、会場を大きく沸かせました。

片手のみでパズルをコントロールする3x3x3片手部門では、30名がエントリーする中、Takumi Kato (加藤匠)が平均10.78秒を叩き出して見事な勝利を収めました。Takumi Kato (加藤匠)は単発8.77秒の好記録も記録し、2位のMasaya Nakamoto (中本誠也)の11.68秒、3位のKantaro Sakamoto (坂本貫太郎)の12.63秒を抑えて栄冠を手にしました。

目隠し競技の舞台ではYuki Yamamoto (山本祐輝)の圧倒的な記憶力と正確性が際立ちました。3x3x3目隠し部門では単発30.65秒でYuki Yamamoto (山本祐輝)が優勝し、Haruka Kitamura (北村晴香)が58.97秒、Shogo Yamamoto (山本匠悟)が37.35秒で続きました。さらに17名が挑んだ3x3x3複数目隠しでも、Yuki Yamamoto (山本祐輝)が1時間ちょうどで20個中29個成功というスコアを記録し、Lucas Ichiro Yunomaeの9個全問正解32分25秒やRyutaro Miyazaki (宮崎隆太郎)の7個全問正解46分52秒を上回って2冠を達成しました。

公式の表彰台の記録の陰で、自らの限界に挑んだ選手たちの確かな前進もHiroshima Spring 2026の大きな魅力でした。Milo Banは3x3x3片手部門で自己記録を7.9パーセント短縮する34.36秒をマークし27位となりました。4種目に挑戦したMirei Morioka (森岡美玲)は3x3x3で従来の自己ベストを6.8パーセント更新する15.38秒を記録し、複数目隠しでも14位に入りました。Eita Mizuno (水野瑛太)は3x3x3で4.2パーセント短縮の10.42秒、Kosuke Takahashi (高橋康介)も同じく3x3x3で4.2パーセント更新となる7.69秒をマークしました。

今回が初のWCA公式大会参戦となった選手たちも素晴らしい足跡を残しました。Hayate Inoue (井上颯)は初挑戦の3x3x3で7.49秒、3x3x3片手で21.10秒を記録し片手16位に入りました。Haruka Miyai (宮井悠嘉)は3x3x3で11.61秒、目隠し初挑戦で2分20秒41を揃えて16位となりました。Kuniharu Yanase (簗瀬邦治)は最少手数部門で7位に食い込みつつ3x3x3で13.91秒を記録し、Yusei Ishida (石田裕誠)は3x3x3で21.26秒の初公式記録を樹立しました。

多彩なパズルと頭脳戦が繰り広げられたHiroshima Spring 2026は、日本勢が13個、ブラジルと中華台北がそれぞれ1個の表彰台を獲得して盛況のうちに幕を閉じました。思考の深さを競う種目からコンマ数秒を削り合うスピード競技まで、キューブ競技の奥深い魅力と選手たちの情熱が色濃く刻まれた週末となりました。