News
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.
HOJ Wiki is Open! (Edited by volunteer players)
HOJ Status
1845 problems available.
1454 registered users.
85595 solutions have been submitted.
Recent Submissions
2026-07-20 20:33:10 : _misaki cleared problem 1765 in 16 bytes.
2026-07-20 16:56:34 : _misaki cleared problem 1479 in 15 bytes.
2026-07-20 16:07:18 : Ktya cleared problem 0658 in 17 bytes.
2026-07-20 15:14:14 : _misaki cleared problem 1621 in 15 bytes.
2026-07-20 13:52:35 : _misaki cleared problem 1618 in 13 bytes.
2026-07-20 09:11:02 : Ktya cleared problem 0489 in 104 bytes.
2026-07-20 08:58:09 : _misaki cleared problem 1762 in 14 bytes.
2026-07-20 08:25:15 : Ktya cleared problem 0127 in 91 bytes.
2026-07-20 08:15:03 : Ktya cleared problem 0127 in 92 bytes.
2026-07-20 08:01:33 : Ktya cleared problem 0510 in 207 bytes.
Welcome to Herbert Online Judge β!
New Features
1. User registration is available. Please click register/login.
2. You can see user rating / ranking on the Ranking page.
3. Your submission codes are saved if you are logging in.
4. You can make problems. Please use Edit Menu after logging in.
Some contents of this site are provided only in Japanese.
Sorry for the inconvenience.
What's Herbert?
Herbert is a exciting puzzle game.
Your mission is controling the robot(Herbert) on the field and pushing targets.
You can use a simple programming language, "H" to control Herbert.
The grammer and rule of "H" is so simple that everyone can master it in short time.
Herbert is especially recommended for people who...
like puzzles / want to train their brains
intend to learn programming
are familiar with programming and algorithms
About Herbert and HOJ
Herbert was originally developed by wildnoodle.
It was used on Microsoft ImagineCup for three years.
This website is unofficial Herbert Online Judge system for Herbert lovers.
There are some differences between HOJ and original implementation by wildnoodle.
Please contact me if you find obvious bugs.
Developer: @quolc (a member of IC2008 Japanese team)
Contact: quolc.i [at] gmail.com
Information
2011/03/17 : Bug fix for interpreter
2011/03/10 : Improvement of Problems page
2011/03/06 : fix problem with using "+" / Bug fix for interpreter
2011/03/06 : System Test Bug Fix
2011/03/05 : Herbert Online Judge beta release
2010/10/30 : Rule release
2010/10/25 : Problem Set 0 (0000-0020)
2010/10/25 : Herbert Online Judge alpha release
Closed Events
2nd HOJ Festival
Submit problems: Dec. 25 - 31, 2012 (JST)
Solve problems: Until Jan 13, 18:00
The score of each problems is calculated by a special rule.
Please check the detail page.
HOJ Contest #7
Date: 2012/6/10 (Sun) 20:00-23:00
Spring HOJ Festival 2012
Date: 2012/3/24 (Sat) 0:00 - 4/1 (Sun) 18:00
Organizer: All HOJ Players!
Detail: http://mashojer.web.fc2.com/spring_festival_2012.html
HOJ Contest #5
Date: 2012/1/15 (Sun) 20:00-23:00
