My pingCTF 2026 writeups, notes, and solve scripts for the challenges I ended up solving.
I wanted this to feel more like a simple writeup blog than a dump of notes, so each challenge page has the full explanation, the important artifacts, and the solve code when it helps.
A small collection of the pingCTF 2026 challenges I solved and wrote up properly.
A pingCTF 2026 rev writeup for gol, a reversible Game-of-Life-style ELF. It explains how the checker validates the last two board states and how reversing the recurrence recovers the packed input bytes directly.
A pingCTF 2026 reversing writeup for cf madness, a stripped ELF that routes each ASCII byte through tiny helpers and compares the result against an interleaved constant table.
A pingCTF 2026 pwn writeup for tuttis, a RISC-V challenge running under Spike, showing how a one-byte underflow and forced misaligned load lead into shellcode execution.
A pingCTF 2026 misc writeup for Parkour encoding, a Minecraft world save where the parkour route itself encodes the flag as raw ASCII.
A pingCTF 2026 rev writeup for What the fuck is a logarithm, a generated Python
stack machine where the verifier collapses into weighted sums in base 73.21.