Fair On-Chain Puzzle is a Solidity-based smart contract that brings a classic memory matching game to the blockchain.
Unlike traditional games where hidden data lives on a central server, this game embraces blockchain transparency — every move, every shuffle, every card is publicly verifiable.
This project demonstrates one of the most fundamental truths of blockchain development:
🧠 Nothing on-chain is truly private.
Even “private” variables can be read from storage — so fairness must be provable, not promised.
This project is designed for beginners learning Solidity and wanting hands-on experience with randomness, events, and game logic on-chain.
This project was built to help new blockchain developers understand:
Why true randomness is difficult on-chain.
How “fairness” works in public ledgers.
The importance of provable, transparent systems.
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