Jane Street Puzzles
and Quanty

• Butterfly spreads, Breeden Litzenberg and Implied Probability

  26 Apr 2025

• Hall of Mirrors 3
  Twenty-seven wrong solutions

  22 Mar 2025

• Beside the Point
  A mathematical solution

  3 Nov 2024

• Knight Moves 6
  141 Million Valid, Optimal Solutions

  12 Oct 2024