Solving the Jane Street Reverse Engineering Challenge

The author reverse-engineered Jane Street’s ASIC challenge by parsing the provided GDS layout with Python’s gdstk, discovering 27 cells in the warm-up file and extracting logic elements such as clocks, resets, and standard cells. By analyzing the accompanying VCD simulation file, they wrote a C program that output “TRY AGAIN,” revealing embedded textual messages and confirming the circuit’s intended behavior.