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2/58
Posted by Pha. Pharaoh Sphinx Singapore

Title: Hackers Camp 1D

My own idea for this challenge is probably good enough for Level 1. quangntenemy helped with ideas to make it a Level 2 challenge.

Testing and improvement by quangntenemy too. [Read More]

Posted on 2008-08-24 00:09:01
2187 views | 0 replies | 6 +votes | 0 −votes
3/56
Posted by Pha. Pharaoh Sphinx Singapore

Title: Number Guessing Theory I

Brought to you by horst35.

With a sequel ;) [Read More]

Last post by Geb. Geb mithmith on 2008-08-22 19:25:11
2197 views | 3 replies | 11 +votes | 0 −votes
3/58
Posted by Pha. Pharaoh Sphinx Singapore

Title: Texnical II

Brought to you by skraeling.

Many thanks and cheers to skraeling!

Last post by Pha. Pharaoh Sphinx on 2008-08-19 20:57:02
2048 views | 3 replies | 7 +votes | 0 −votes
4/35
Posted by Pha. Pharaoh Sphinx Singapore

Title: The Nonogram Pyramid

Brought to you by skraeling.

Thanks and cheers to skraeling!

Last post by Pha. Pharaoh Sphinx on 2008-08-19 20:53:52
2161 views | 3 replies | 8 +votes | 1 −votes
1/40
Posted by Geb. Geb mithmith India

where has the caesar cipher challenge disappeared?

219 challenges? am i seeing a 4 day back archive or what?

Solved 202/220 but only 219 challenges..something is wrong

Last post by Pha. Pharaoh Sphinx on 2008-08-19 20:42:26
2507 views | 6 replies | 10 +votes | 0 −votes
2/47 Numb3rs
Posted by Pha. Pharaoh Sphinx Singapore

Brought to you by mithmith.

Thanks and cheers to mithmith!

Last post by Geb. Geb Kender on 2008-08-12 16:26:13
2659 views | 7 replies | 10 +votes | 2 −votes
4/26
Posted by Pha. Pharaoh velo Croatia

The hash is changed?? Any change in the future, or we can do on this one?

Last post by Pha. Pharaoh skraeling on 2008-08-05 09:28:32
3399 views | 17 replies | 13 +votes | 0 −votes
bug
Posted by Art. Artisan Noobiel

I solved http://www.rankk.org/challenges/dont-blink.py (two times) and got the message "successfully solved", but it is not marked as solved.

Last post by Geb. Geb quangntenemy on 2008-07-29 20:21:09
2029 views | 2 replies | 6 +votes | 1 −votes
rankk challenge proposal
Posted by Art. Artisan Noobiel

Problem: Find the number of \mathbb{Q}-rational points on X_0(N) for N >= 1337

Last post by Geb. Geb quangntenemy on 2008-07-28 23:21:11
2222 views | 2 replies | 5 +votes | 3 −votes
bug
Posted by Art. Artisan Noobiel

I get "You've been logged out as your current session is rendered invalid." after solving a challenge.

Last post by Pha. Pharaoh Sphinx on 2008-07-28 20:17:54
2072 views | 2 replies | 7 +votes | 0 −votes
2/54
Posted by Pha. Pharaoh Sphinx Singapore

Title: Beheaded Bitten bytes

Brought to you by skraeling.

Thanks and cheers to skraeling!

Last post by Pha. Pharaoh skraeling on 2008-07-23 21:33:30
2428 views | 6 replies | 6 +votes | 0 −votes
2/53
Posted by Pha. Pharaoh Sphinx Singapore

Title: Onion peeling

Brought to you by skraeling.

Many thanks and cheers to skraeling!

Last post by Geb. Geb mithmith on 2008-07-23 03:21:48
2088 views | 1 replies | 8 +votes | 0 −votes
2/52
Posted by Pha. Pharaoh Sphinx Singapore

skraeling suggested some improvements. I've disabled the challenge to allow me to make changes.

You may have to resolve it after it's reloaded.

Last post by Pha. Pharaoh Sphinx on 2008-07-14 23:52:24
2205 views | 1 replies | 7 +votes | 0 −votes
Server down
Posted by Pha. Pharaoh Sphinx Singapore

The server went down this morning, leading to the loss of some data.

Fortunately, the loss was limited to the last 4 days and not terribly damaging.

The server admin had tried to recover the lost data but to no avail. [Read More]

Last post by Pha. Pharaoh skraeling on 2008-07-14 02:04:59
3557 views | 9 replies | 7 +votes | 2 −votes
3/56
Posted by Pha. Pharaoh Sphinx Singapore

Title: RSA

Brought to you by horst35.

Great thanks and cheers to horst35! [Read More]

Last post by Pha. Pharaoh Sphinx on 2008-07-13 19:50:35
2123 views | 1 replies | 7 +votes | 0 −votes
Guests: 73 Total: 73