Gopher's Debug Course
A modern Go environment where the gopher sits next to you, points at suspicious lines, and helps you turn bugs into wins. Fix code in the editor, ask for hints, or take the quiz route when you want a softer nudge. Every reset shuffles the path so the curriculum feels a bit different each run.
685
Exercises
63h
of content
13
Levels
44
Modules
Your progress
0 of 600 free exercises done
go test ./exercise
Lantern hints
The gopher reveals one clue at a time. Later hints get more direct, but still friendly.
Patch the little monster hiding in the program. Think like a gopher: small steps, clear names, and one suspicious line at a time. When you check, we compare to the reference solution (indentation, blank lines, and end-of-line // comments are ignored). Auto-fix drops the clean version into the editor if you want to study the trick.
Gopher tip: these bug rooms are self-contained, so a local Go install is optional while you practice.