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A list of sites with challenges to improve your programming skills
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Failed to load latest commit information. Add rubykoans Mar 29, 2018


  • Codewars - Codewars is a collective effort by its users. They are creators - authoring kata to teach various techniques, solving kata with solutions that enlighten others, and commenting with constructive feedback.
  • Ruby Koans - must have
  • Project Euler - Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.
  • Codility lessons
  • Practicing Ruby - Delightful lessons for dedicated programmers
  • Rubeque - Solving ruby koans and problems from easy to deadly hard
  • Ruby Warrior - Learn Ruby through a triumphant quest of adventure, love & destiny
  • CodinGame - CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics
  • Ruby Quiz - Ruby Quiz is a programming challenge for Ruby programmers in the spirit of the Perl Quiz of the Week
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