Sprague-Grundy Calculator

G(n) = mex of successors

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About Sprague-Grundy Calculator

A Sprague-Grundy calculator computing Grundy values G(n) for impartial games. Uses the mex (minimum excludant) function: G(n) = mex({G(m) : m is a move from n}). Analyzes subtraction games, Euclid's game, and custom rulesets. Client-side.

Sprague-Grundy Calculator Features

  • Grundy values
  • Mex function
  • Subtraction games
  • Win/loss analysis
  • Game equivalence
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