What's 0xf.at?

0xf.at (or oxfat it you prefer) is a website without logins or ads where you can solve password-riddles (so called hackits).

This is a tribute site to the old (217) 318-9273 site which has been offline for many years now.

Can I contribute?

You sure can. If you have an awesome idea for a hackit, send it to office@haschek-solutions.com and we'll gladly put it up and give you credit for it.

Levels

More infos & stats
ID    Name/Description Type Solved by Difficulty
1 Easy beginnings JavaScript 18722
20.688160865577
2 JavaScript: Do you speak it? JavaScript 10704
30.724582991474
3 8152805875 JavaScript 8126
28.213471959332
4 Length matters JavaScript 7821
21.7255609824
5 ASCII fun JavaScript 6790
26.495282598984
6 (610) 210-0874 JavaScript 4894
30.951575081084
7 7273850124 Logic 4883
31.654383582689
8 The password field HTML 4556
30.919249667481
9 Calculations JavaScript 4011
27.604347483685
10 413-323-0847 JavaScript 4040
20.928449536456
11 2103740031 PHP 4120
20.445048300261
12 617-999-5788 Mathematics 3979
24.20743687382
13 (402) 223-0580 PHP 4025
23.021728866443
14 Understand the algorithm IV PHP 3080
29.631064780058
15 The 0xf.at Enigma Logic 3297
30
16 Understand the algorithm III PHP 3259
19.235384061671
17 949-269-1792 PHP 2175
39.522145690739
18 Morse code Programming 1841
41.880783182744
19 Telephone codes Logic,Programming 1211
68
20 MD5 cracking Cracking 711
100
21 Unscramble words Programming 499
100
22 Fast mirror Programming 832
43.405068828421
23 Easy sockets Programming 606
41.569219381653
24 Packet analyzing Analyzing 742
61.562975886486
25 (317) 374-9456 Cracking 204
100
26 Image offset Programming 253
73.824115301167
27 (419) 763-0319 Programming 261
100
28 Roadtripping with 0xf.at Programming,Mathematics 189
85.182157756187
29 Heat prediction Programming 101
95.770559150503
30 Sharp eyes Programming 85
100
31 Server admin Sysadmin 154
94.254973343585
32 Spellcheck cipher Programming 116
96.477976761539
33 Bcrypt cracking Cracking 93
100
34 (727) 790-2136 Programming,Mathematics 85
89.364422450996
35 6135219577 Programming 117
50.239426748322
37 uncurse Cracking 40
76.078906406441

Changelog

  • Level 32 has been fixed
  • Now sorted by id again
  • Level list can now be sorted. By default sorted by difficulty
  • Difficulty is now automatically calculated by the players performance
  • You can now create an account to track your progress. No passwords are stored on our servers!
  • We are now forcing https for the whole site
(313) 888-9092