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Article

The power of snooker

In preparation for this year's snooker world championship, Wim Hordijk finds some powerful maths behind snooker statistics...
Article

Spider solitaire

Spider solitaire is a popular online game. But are users right in their suspicion that some programs are rigged?
Article

Making penalties fairer

Is the proposed ABBA rule for penalty shootouts really fairer than the existing rule? Maths shows that it is, and also suggests another, more subtle rule.