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Tag: Flag Checker

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Flag Checker

Flag checkers are a common type of challenge in the Reverse Engineering category.

An executable or script called a flag checker takes the player's input and outputs whether that input matches the flag.

These challenges may also be called "crackmes" in a broader sense. (automatically translated from Japanese)

minaminao
·Updated May 3, 2026
Flag Checker Challenges

misdirection

Daily AlpacaHackTopic: AMD64Released: Feb 7, 2026

190 solves
Rev

by

tan90909090

tan90909090

USER

SOLVED AT

mg7x

9 hours ago

2026/07/26 09:37

2026/07/25 10:43

2026/07/25 09:14

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2026/05/09 17:29

2026/05/09 05:21

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2026/04/23 07:29

Rows:

descriptionsolveswriteups