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Hard · Puzzle #479
8
9
2
4
6
3
8
5
6
3
4
7
1
7
4
3
7
4
2
9
3
1
7
6
2
8
"A mathematician is a device for turning coffee into theorems." — Paul Erdős
"A mathematician is a device for turning coffee into theorems." — Paul Erdős
"The hardest game to win is a won game." — Emanuel Lasker
"The hardest game to win is a won game." — Emanuel Lasker