TL;DR
Minimax in Matching Pennies: A canonical quantitative trading interview question at foundation difficulty. Commonly asked at Jane Street, Citadel, SIG.
By Valenke Exam Prep Team·Last updated 2026-06-01
foundationAlgorithmic Game Theory
Minimax in Matching Pennies
Asked at: Jane Street, Citadel, SIG
Problem
Two players simultaneously choose Heads or Tails. Player 1 wins \$1 if they match; Player 2 wins \$1 if they differ. Find the minimax optimal strategy for each player and the value of the game.
Related concepts
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