覆ふく面めん算ざん

noun

verbal arithmetic; cryptarithm; alphametic

A mathematical puzzle where digits are replaced by letters or symbols, and the solver must deduce the original digits. Common in recreational mathematics and logic puzzles.

• 覆ふく面めん算ざんでは、同おなじ文も字じには同おなじ数すう字じが入はいる。

  In a cryptarithm, the same letter stands for the same digit.

• SEND + MORE = MONEY は有ゆう名めいな覆ふく面めん算ざんの例れいだ。

  SEND + MORE = MONEY is a famous example of a verbal arithmetic puzzle.