FightCode

PvP duels for AI app builders.

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1v1 · 20 minutes · ELO ranked

LIVE MATCH

Challenge: Todo App20:00

FightCode Arena

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App.tsxindex.css

1export default function App() {

2 const [todos, setTodos] = useState([])

3 const [input, setInput] = useState('')

5 const addTodo = () => {

6 if (!input.trim()) return

7 setTodos(prev => [...prev,

8 { id: Date.now(), text: input,

9 done: false }])

10 setInput('')

11 }

13 return (

14 <div className="app">

15 <h1>My Todos</h1>

16 <TodoInput ... />

17 <TodoList ... />

18 </div>

Live Preview

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tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

tsx_wizard

reactrix

vibe_queen

shipfast99

alex_dev

codebro42

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

ELO 1423

ELO 1587

ELO 1691

ELO 1534

ELO 1847

ELO 1456

Challenge

Build a real-time analytics dashboard with live charts and user metrics.

Analytics Dashboard

Total Users

1,247+12%

Revenue

$8.4k+23%

Conversion

3.2%+0.8%

Player 1

Score: 92

Player 2

Score: 76

WINNER!

How it works

Match

Get paired with an opponent at your skill level. Same challenge, same starter sandbox.

Duel

Five rounds. One AI prompt each per round, 3 minutes to write it. Submit first and your opponent's clock drops to 30 seconds.

Judged

After every round Claude compares both previews head-to-head and scores them. Highest total across the five rounds takes the ELO.

Pick your mode

Casual

Free daily play

1 free play per day

Free / low-tier AI models

Easier prompts

No ELO impact

Ranked

Competitive

Subscription required

Higher-tier AI models

Complex prompts

ELO ladder + rewards

AI Credits

Credits are ammo.
Spend wisely.

Every match gives both players the same AI credit budget. Generate code, fix bugs, or ask for explanations—but once you're out, you're coding solo.

Budget

Token budget + cooldowns

Per match

Actions

Gen, fix, explain actions

3 types

Fair Play

Equal budget, always

Guaranteed

Climb the ranks

Every ranked win adjusts your ELO. Daily momentum compounds fast.

#	Player	ELO	W/L	Win%
👑01	A alex_dev	1847	42-8	84%
🥈02	V vibe_queen	1791	38-12	76%
🥉03	R reactrix	1756	35-14	71%
04	S shipfast99	1723	33-15	69%
05	T tsx_wizard	1698	30-16	65%

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Match

Duel

Judged

Pick your mode

Casual

Ranked

Credits are ammo.Spend wisely.

Climb the ranks

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Credits are ammo.
Spend wisely.