Sites with Math challenges on WeChall

ID Language Site Users Challs Average Dif Fun Description
97FrenchFranceÉnigmes À Thématiques203954632.31%50.00%50.00%Énigmes À Thématiques, c'est une nouvelle énigme inédite qui sort chaque jour dans des domaines aussi variés que...
80EnglishUnited StatesDisavowed.net220646.47%50.00%50.00%One of the original challenges! Disavowed.net is once again available to play (hosted within Mod-X). Enjoy!
75GreekGreeceMathchall50.00%50.00%Mathchall is requiring the mind to use pure intelligence in the attainment of pure truth. ---Now you can maximize you...
58EnglishUnited StatesValhalla56.25%100.00%Valhalla is a place for sharing knowledge and ideas. Valhalla allows users to submit code, as well as science,...
55FrenchFranceRight-Answer39.29%53.12%This website want to make you think and learn in several chall spread over several categories such as logic,...
47EnglishPolandSPOJ112446469881.15%62.50%18.75%SPOJ (Sphere Online Judge) is an online judge system with 2000 programming challenges. The solutions to challenges can...
38EnglishNetherlands, Thelistbrain.tk94577114.42%58.33%68.75%Another english site
37EnglishUnited StatesCSTutoringCenter39.70%68.05%CSTutoringCenter.com provides many different kinds of challenges. You are free to solve them in any language and with...
36EnglishTurkeyRoseCode53.57%71.43%This site publishes mostly math based programming challenges. Other topics include Crypto, Brainfck, Hacking, and...
27EnglishUnited StatesProject Euler75.00%100.00%Project Euler is a series of challenging mathematical/computer programming problems that will require more than just...
25PolishPolandShow Your Skills84.09%77.27%sys.warchall.net is a polish website with a lot of challenges. You can find here hackmes, crackmes, cryptography...
23GermanGermanyMiBs Challenges65.91%73.22%MiBs Challenges is a German riddle site started in 2005 with over 150 challenges in 9 categories including math,...
17SpanishSpainHispabyte45.45%61.36%Wargame de Hispabyte, zona práctica de un sitio dedicado a la seguridad, informática y programación. Wargame of...
14FrenchFranceinfomirmo70.00%70.00%A new French site turned to the learning of the computing through the SOSI challenge. SOSI is a linear challenge with a...
12EnglishSwitzerlandLOST-Chall1018219913.41%63.04%66.31%A site based on the TV show Lost. Challenges range from easy to hard. Non-Lost fans will find this enjoyable too!
9GermanGermanyHappy-Security63.33%66.07%Happy-Security is a german challenge site. {also translated in english} Beside the 'normal' challenge sections, there...
6EnglishUnited KingdomElectrica124244424.54%89.28%82.69%Reverse engineering, cryptography, maths, steganography challenges. Home of the challengers handbook.
4EnglishSingaporeRankk981535311.94%80.77%75.89%Rankk's challenges are organised into levels from easy to difficult. The challenges are based on topics ranging from...
How to add other sites to WeChall
If you are a challenge site administrator, please read join.php.
If you want your favorite site to get added you can try to contact their admins.
Please do not post about WeChall in their public forums, instead write them an email or pm.