PlaidCTF 2021 Watness 3
Info This is the English translation of my original writeup. In PlaidCTF 2021, I solved the challenge The Watness III, then I spent my time on another challenge dr. Unfortunately, the regular expression algorithm in dr is too complex to understand, thus I failed to solve it. There was a similar challenge in PlaidCTF 2020, The Watness II, I solved that last year when I was a member of A*0*E, which was a reverse challenge of HyperCard game on the m68k platform.