Learn Go by playing.

Called GOAUNTLET as a pun on go + gauntlet — the whole language, run back to back.

You're the gopher in the arena. Every round throws real Go at you — read it, run it, fix it, or lose a life. No setup, no accounts. A real compiler, lives on the line, and streaks that only count real work.

a round, exactly as it plays

$ goauntlet quiz --deck slices Q: What does append return? A) A new slice header B) Nothing — edits in place > A +20 XP · streak 4 · combo x2 lives 3 · coins 120 · quest 5/8

The game

learnGuided lessons with a real compiler. No lives lost.
quizFlashcards that cost lives and streaks when you miss.
speed60-second blitz. Answer fast, score big.
triviaCasual Go knowledge. Nothing at stake.
debugTap the buggy line. Two tries per case.
buildAssemble real programs step by step, decoys included.
orderPut shuffled programs into running order.
algoTen lessons, Big O to sliding window. Watch, then solve.

The rules

Wrong costs. Quiz misses take lives and reset streaks. Shields, hearts, and skips cost coins you earn by being right.
Practice is free. Lessons never take lives. Wrong picks there cost nothing and retries are unlimited.
Streaks mean days. Only real activity moves them. Opening the app does not count.
It really compiles. Run buttons use a real Go toolchain through a proxy, with the Playground as backup.

Enter the gauntlet

shows once · progress stays in your browser