SignupHide Sidebar
Username: 
Password: 
Restrict session to IP 
Statistics
62 Sites
146 Challs
7774 Posts
52378 Users
22 donations
62 Active Sites
World of Wargame
WeChall
Rankk
Electrica
Happy-Security
NewbieContest
LOST-Chall
Yashira
BrainQuest
Net-Force
HackThisSite
ThisisLegal.com
elhacker.net
TryThis0ne
TDHack
+Ma's Reversing
hax.tor.hu
Hacker.org
RoseCode
listbrain.tk
HackBBS
Security Traps
Root-Me
SPOJ
Revolution Elite
W3Challs
Webhacking.kr
µContest
wargame.kr
Valhalla
hacking.allowed.org
Reversing.Kr
SuNiNaTaS
Yoire
wixxerd.com
Hacking-Challenges
OverTheWire.org
RedTigers Hackit
Tasteless
Defend the Web
Mod-X
Omega Project
Disavowed.net
Stereotyped Challenges
ae27ff
pwnable.kr
Challengeland
RingZer0 Team Online CTF
SolveMe
Hacker Gateway
NOE.systems
pwnable.tw
Hack The Box
try to decrypt
CTFS.ME
CanHackMe
MysteryTwister
LordofSQLi
Énigmes À Thématiques
247CTF
CryptoHack
PyDéfis
Top 10 Players
dloser
Caesum
benito255
phoenix1204
tehron
Akorlith
lordOric
jusb3
yachoor
nurfed
Last 20 Activities
efilfoemag
rubiya
Fox1337
stepper
evernick
username0009
Krypt0man
thefinder
n0ps13d
Krypt0man
Santiagom
chemthan
jablonskim
saiwa
justmike
HvT
scaddow
scaddow
mr_once
J3ms
Online within 1d
66 Users
GroM
HvT
tclack
windcrow
HICwhitefox
kie
efilfoemag
genji9071
stepper
ellduboisemitch
J3ms
Krypt0man
nicklala0326
DMIND
AchedDamiman
chemthan
Fox1337
sisyang
evernick
username0009
more

SearchWeChall ForumsPolls

WeChall->Challenges->Challenge: Sudoku I
Title Creator Posts Reply From Last Post Thx VoteUp Views
solving by hand space 7 tripleedged Sep 04, 2011 - 21:55:05 8 8 9119
How do I submit? travmanx 4 Gizmore Sep 12, 2009 - 12:27:39 4 2 7512
Subscribe