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ace of batons (high-scoring card in mekuri karuta)
花札で青一は松に鶴と並ぶ高得点の光札だ。
The ace of batons is a high-scoring card.
花札で最後に青一を引いて役が完成し勝負が決まった。
Drawing the ace of batons decided the game.
花札の青一の正式な価値を知らない初心者も多い。
Many don't know the value of the ace of batons.