There are only twelve 4x4 sudoku grids and 85632 puzzles
By fanf2 · 2026-09-14 · 1 points · 0 comments
https://baldino.dev/blog/there-are-only-twelve-4x4-sudokus/
By fanf2 · 1 points · 0 comments · on Hacker News, read on BetterNews.
Open the full discussion on BetterNews