PlaySudoku.us
Medium · Puzzle #421
3
8
9
5
4
6
2
9
5
7
6
3
2
9
7
2
4
5
6
9
1
4
3
1
8
5
1
7
9
2
7
8
4
3
"I hated every minute of training, but I said: don't quit. Suffer now and live the rest of your life as a champion." — Muhammad Ali
"I hated every minute of training, but I said: don't quit. Suffer now and live the rest of your life as a champion." — Muhammad Ali
"The book of nature is written in the language of mathematics." — Galileo Galilei
"The book of nature is written in the language of mathematics." — Galileo Galilei