8
3
4
5
2
8
4
3
7
9
9
7
6
1
3
8
1
5
3
7
4
5
6
4
7
6
2
9
4
8
6
8
"Chess is the touchstone of intellect." — Johann Wolfgang von Goethe
"Chess is the touchstone of intellect." — Johann Wolfgang von Goethe
"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding." — William Paul Thurston
"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding." — William Paul Thurston