5
votes
In Minesweeper, how is the formula for the IOS (Index Of Speed) metric derived? (Minesweeper Online)
proof-explanation
logarithms
asked Jan 30 at 1:31
math.stackexchange.com
5
votes
Is the 7-clue 6x6 Sudoku solvable?
logical-deduction
grid-deduction
sudoku
asked Feb 29 at 17:54
puzzling.stackexchange.com
5
votes
Current record for minimally clued 7x7 Hidato (16 clues)
logical-deduction
grid-deduction
no-computers
asked May 21 at 18:43
puzzling.stackexchange.com
5
votes
Continued fraction is hard to read
fractions
asked Jan 4 at 18:26
tex.stackexchange.com
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