Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.
Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.
"Begin at once to live, and count each separate day as a separate life." — Seneca
"Begin at once to live, and count each separate day as a separate life." — Seneca