PlaySudoku.us
Evil · Puzzle #950
6
9
7
5
7
2
1
8
1
2
6
7
3
2
8
9
3
6
7
5
2
2
6
3
2
8
"A theory that is not refutable by any conceivable event is non-scientific." — Karl Popper
"A theory that is not refutable by any conceivable event is non-scientific." — Karl Popper
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them." — William Lawrence Bragg
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them." — William Lawrence Bragg