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Anything goes, except challenge hints ;)

STICKY: Challenge corrections/suggestions Last post by Geb. Geb Simonselles France on 2024-11-29 15:16:12
STICKY: Feature request Last post by Sol. Soldier juanquitian on 2024-09-08 21:28:53
2/81 - The Directory
Posted by Geb. Geb quangntenemy Vietnam

Finally solved it.

I believe this is the hardest level 2 chall, even though it's not very complicated.

Last post by Geb. Geb Hul3man on 2026-06-07 20:11:55
104 views | 1 replies | 1 +votes | 0 −votes
Hi intruder
Posted by Art. Artisan Bayarchimeg Mongolia

The guardians at the Giza Base have no way of identifying you. Your presence is thus considered an intrusion. You're strongly advised to make yourself visible...before it's too late.

Last post by Geb. Geb BlackFire on 2026-06-07 15:27:06
4222 views | 70 replies | 8 +votes | 6 −votes
Bye Intruder
Posted by Nob. Noble Dsa12d018

Bye intruder

Last post by Pha. Pharaoh wekito on 2026-06-07 07:55:58
4319 views | 96 replies | 11 +votes | 2 −votes
Bye Intruder
Posted by Mer. Merchant xnobodyx

Bye

Last post by Pha. Pharaoh wekito on 2026-05-30 17:47:58
866 views | 28 replies | 3 +votes | 0 −votes
5/31: Quasi-Rogue
Posted by Pha. Pharaoh Sphinx Singapore

Title: Quasi-Rogue

Brought to you by [Read More]

Last post by Geb. Geb quangntenemy on 2026-05-27 19:58:45
2978 views | 14 replies | 8 +votes | 0 −votes
1/51 Email forensic level broken?
Posted by Geb. Geb fsharp Hong Kong

Hello!

Could someone verify if this level is broken? I think I'm following the instructions given in the challenge correctly, but it doesn't seem to accept any answer I give it.

As of 2021-07-12, he HoF for level 1/51 shows 1345 total solvers, but the latest solve is on [Read More]

Last post by Scr. Scribe Khentiamentiu on 2026-05-01 11:30:02
1155 views | 6 replies | 4 +votes | 0 −votes
llar ve
Posted by Sol. Soldier buduun

llar ve

Posted on 2026-04-30 02:33:47
46 views | 0 replies | 0 +votes | 1 −votes
IRC II
Posted by Pha. Pharaoh Sphinx Singapore

Brought to you by mithmith and ZetaX.

ZetaX has all the "cool and evil" ideas...Beware :)

Thanks and cheers to mithmith and ZetaX! [Read More]

Last post by Geb. Geb quangntenemy on 2026-04-14 20:23:39
3760 views | 9 replies | 12 +votes | 5 −votes
6/11 - Wildlife
Posted by Geb. Geb quangntenemy Vietnam

This chall was a real pain.

But... solved :D

Last post by Geb. Geb quangntenemy on 2026-04-14 05:36:28
60 views | 2 replies | 1 +votes | 0 −votes
8/2 Meet ToeJam
Posted by Pha. Pharaoh love0day

I get so many passwords by dfs.but I can't find the good one. I almost climb to the pyramid's top in 2 weeks,so many programming levels,I almost be trained to a programmer by this site. A very good site.

Last post by Geb. Geb quangntenemy on 2026-04-14 02:42:52
2897 views | 3 replies | 6 +votes | 0 −votes
6/12
Posted by Pha. Pharaoh Sphinx Singapore

Title: Large hashing collider

Brought to you by ZetaX, [Read More]

Last post by Geb. Geb quangntenemy on 2026-04-08 22:53:24
2553 views | 1 replies | 6 +votes | 0 −votes
Level 2/42 Jigsaw
Posted by Mer. Merchant Zach4

I solved the given puzzle and arranged the pieces from left to right, top to bottom, which gave me a string.When I kick out the numbers and enter the letters I got wrong answers, can someone explain to me what I do wrong please? Innocent [Read More]

Last post by Geb. Geb quangntenemy on 2026-04-08 22:16:02
222 views | 1 replies | 2 +votes | 0 −votes
4/52 - The true enigma
Posted by Geb. Geb quangntenemy Vietnam

Very interesting and creative challenge. I really enjoyed it :D

Posted on 2026-04-08 22:14:43
63 views | 0 replies | 1 +votes | 0 −votes
7/10: Master Arckeyologist
Posted by Pha. Pharaoh Sphinx Singapore

Brought to you by DoctorXOR.

Enjoy! [Read More]

Last post by Geb. Geb quangntenemy on 2026-04-07 07:17:41
1075 views | 1 replies | 2 +votes | 0 −votes
Important - read this
Posted by Geb. Geb quangntenemy Vietnam

If you're still solving challs in 2025: You're awesome! :D

Last post by Geb. Geb quangntenemy on 2026-04-07 06:27:27
357 views | 3 replies | 9 +votes | 1 −votes
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