Events and games
Bingo card (No. 0142, 5 × 5, free centre)
A bingo card, five by five with a free centre, where each column draws from its own range of numbers
This drawing comes from one YAML file. No shape was moved by hand.
Notes in the source (in Japanese)
列ごとに数の範囲が決まっている —— B は 1〜15、I は 16〜30、N は 31〜45、G は 46〜60、O は 61〜75。中央はフリー。主催側の進行表は見本 65。
列ごとに範囲が分かれているのは、探しやすくするため。「B の 12」と読み上げれば、見る列は B の 5 マスだけで済む。
中央がフリーなのは、縦・横・斜めの 4 本が通る唯一のマスだから(12 本の列のうち 4 本。ほかのマスは 2 本か 3 本)——ここを埋めておくと、最初の 1 個が出る前からリーチが近い。
Source (YAML)
examples/gallery/69-ビンゴカード.zumen.yaml
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