Adobe Flash has ended its life. While I don't have plan to translate the player to HTML5, you can continue to play HOJ using HOJ Supporter developed by pasta-san. 1844 problems available. 1426 registered users. 85073 solutions have been submitted. Recent Submissions 2024-08-15 07:55:18 : Neko cleared problem 0004 in 18 bytes. 2024-08-14 12:19:46 : Neko cleared problem 0001 in 4 bytes. 2024-08-14 1