The story
hex + -a- + -doku, from hexadecimal sudoku.
Etymology from Wiktionary, CC BY-SA 4.0.
hexadoku
Today it means: A 15x15 grid sudoku, using hex numerals "1, 2, 3, ..., d, e, f" Full definition →
Today it means: A 15x15 grid sudoku, using hex numerals "1, 2, 3, ..., d, e, f" Full definition →
hex + -a- + -doku, from hexadecimal sudoku.
Etymology from Wiktionary, CC BY-SA 4.0.