"Empty box, empty box, empty box, 8, empty box." – Excerpt from my new Sudoku book, out this fall.
— Tim Siedell (@badbanana) June 26, 2013
"Empty box, empty box, empty box, 8, empty box." – Excerpt from my new Sudoku book, out this fall.
— Tim Siedell (@badbanana) June 26, 2013