Roman Sudoku — chariot race in the Colosseum

The numerals of an empire. I through IX, as the Romans wrote them.

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Sudoku99
9 random numbers, 0–99
Ancient Biblical Numbers
י כ ל מ נ ס ע פ צ
Encrypted Sudoku
@ Ω ∞ £ Ψ ⌘ æ ♦ ℜ
Chinese Numeral Sudoku
零 三 四 五 六 七 八 九 十
5000 Year Old Egyptian Sudoku
𓂀 𓆣 𓋹 𓇓 𓈖 𓉐 𓌀 𓎡 𓏏
Korean Sudoku
영 일 이 삼 사 오 육 칠 구