This website generates a sequence of numbers using a hidden linear congruential generator (LCG). Your objective is to interact with the generator, collect enough consecutive outputs, and brute-force the unknown parameters used to produce the sequence. Once you've reconstructed the generator, predict the next number before generating it to demonstrate that the sequence is deterministic rather than truly random.
lcguessr
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Offensive
Cryptography
Activity
| Lab Released | 2026-08-18 10:00:00 | |
 noother got 1st blood |
2026-08-18 14:35:07 | |
 rayaseiren got 2nd blood |
2026-08-18 17:39:14 | |
 koioshitai got 3rd blood |
2026-08-20 11:13:33 | |
 r777_ got 4th blood |
2026-08-26 23:42:14 | |
 AACDAI got 5th blood |
2026-08-30 16:15:27 |
