That digit is a 1, since for an NxN grid the values are 1 through N. | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

cperciva on Jan 6, 2012 | parent | context | favorite | on: Mathematicians Solve Minimum Sudoku Problem

That digit is a 1, since for an NxN grid the values are 1 through N.

pbhjpbhj on Jan 6, 2012 [–]

I'm not sure what the "Rules of Sudoku" say but I assumed any single symbol of the solvers choosing would do.

Consider applying for YC's Fall 2026 batch! Applications are open till July 27.
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact