SCI-DOKU is a sudoku puzzle that uses letters instead of numbers, with an added twist: a science-related clue accompanies each puzzle and the answer is spelled out in one row or column of the puzzle.
Try it!
(I took 33minutes 49secs to do my first Sci-Doku)
Russell's Teapot!
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reposted from: http://russellsteapot.com/ (via www.thinkhumanism.com)
Welcome to Russell's Teapot!
"If I were to suggest that between the Earth and Mars t...
3 years ago
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