Submitting Sudoku zkApp proposal

submissions/gaming/abaynath.md

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+# Project Name
+Sudoku zkApp
+
+## Category
+Gaming
+
+## Project Description
+A zero-knowledge powered Sudoku puzzle game where players solve a Sudoku grid and generate a proof of correctness without revealing their solution.
+
+The project demonstrates how Soundness can enable privacy-preserving gameplay and trustless leaderboards, proving the validity of a puzzle solution without exposing the actual answers.
+
+## Team Members
+- abaynath (solo)
+
+## Links
+- GitHub: https://github.com/Abaynath/sudoku-zkapp
+- Twitter: https://twitter.com/Aperw3
+
+## Contact
+- Discord: Aperw3
+- Discord ID: 1222236804556521495
+- GitHub: https://github.com/Abaynath
+
+## What problem does this solve?
+Traditional puzzle games require revealing the solution to prove correctness. With zero-knowledge proofs, players can demonstrate they solved the puzzle correctly without exposing the answers.
+
+## How does it use Soundness?
+- Players solve Sudoku in a web-based UI.
+- When finished, they click **Generate Proof**.
+- The client generates a zero-knowledge proof that the solution satisfies Sudoku rules.
+- The proof is sent to and verified by Soundness Layer.
+- Verification returns a “valid/invalid” result without exposing the player’s solution.
+
+## Future Work
+- Add multiple Sudoku difficulty levels.
+- Introduce a leaderboard based on proof submissions.
+- Explore multiplayer “ZK Sudoku tournaments” where players prove they solved puzzles without revealing solutions.