The story
- English · derived fromCross
- Japanese · derived fromカックロ
- English todaykakuro
From Japanese カックロ (kakkuro), in turn derived from English Cross Sums.
Etymology from Wiktionary, CC BY-SA 4.0.
kakuro
Today it means: A type of number puzzle, similar to a crossword but with numbers. Each "clue" is the sum of the digits to be placed in its group of squares, and no digit can be repeated within a group. Full definition →
Japanese カックロ ← English Cross