♟️ ZeroKing

ZeroKing is a trustless, tamper-proof, privacy-preserving chess game powered by zero-knowledge cryptography.

Built with:

• ✅ SvelteKit (Frontend)
• ✅ o1js & zkAppWorker (ZK Game Logic on Mina)
• ✅ zkEmail (for .edu identity verification)
• ✅ French Toast (for clean notifications)

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🚀 Features

• 🎓 .edu-only login via ZK email proof
• 🔐 Zero-Knowledge proof-verified chess engine
• ♟️ On-chain move validation with full game history
• 🏆 Resign or Draw triggers a visual game over screen
• 🖼️ (Coming soon) NFT minting for victories and draws
• 🔁 Automatic redirect to home after game ends

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🧱 Project Structure

src/
├── routes/
│   ├── +page.svelte        # Landing Page with ZK Email Login
│   └── game/+page.svelte   # Core Chess UI
├── lib/
│   ├── zkapp/              # zkApp client for Mina logic
│   ├── components/         # Reusable Svelte components
│   └── utils/              # Minting, proof handling (WIP)

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🧪 Local Development

# 1. Install dependencies
npm install

# 2. Start the dev server
npm run dev

You’ll need:

• Node 18+
• nargo if building Noir circuits locally (for zkEmail proof generation)
• A Mina wallet (Auro) to interact with the zkApp

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🧠 How It Works

1. User enters .edu email
2. Generates a zkEmail proof (mocked for now)
3. Connects wallet and enters game
4. All moves are verified in a zk circuit (via o1js)
5. On draw or resign:
   • Outcome modal appears
   • Auto-redirects to home
   • (Soon) Mints NFT to reward the player(s)

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📸 Game Over Modal

Resign	Draw

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🛣️ Roadmap

• .edu-only entry via zkEmail
• Game logic via zkApp client
• Game-over modal + redirect
• NFT mint on game end
• ZK Proof verification inside o1js circuit
• Tournament mode with sponsor badges

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🤝

ZeroKing is built with tools and inspiration from:

• zkEmail
• Mina Protocol
• Svelte
• ETHGlobal Trifecta