We aimed to prevent cheating while keeping moves instant. A deterministic seed generates new tiles, discouraging cheating without slowing gameplay. Here’s how we designed it. Contracts:

The Monad2048 contract stores the 4x4 board in one uint256. Each tile’s value is encoded in 8 bits. This function reads a tile’s value:

Gameplay works in two steps: 1. startGame: Submit four initial boards to begin, and a seed. 2. play: Submit a move and the resultant board. The seed is used in a deterministic formula to determine where new tiles spawn upon new moves.

The frontend uses Privy for creating player wallets, which avoids repeated popup confirmation for each move. We update the interface instantly after a move, sending transactions in the background. If a transaction fails, we revert to the last valid board.

For rapid transactions, we manage nonce locally and avoid unnecessary RPC calls (e.g. in simulations). Transactions are signed with viem but sent directly to the RPC. This prevents large delays between client and chain state. To skip simulations safely, test client transaction inputs beforehand.

Errors are handled by resetting to the last valid board and showing a notification. We store failed boards and pick the lowest-scoring one to resume. We allow to player to re-sync their board and resume their game by fetching the latest board from the smart contract.

The key takeaway is to explore how you can eliminate latency in your code, wherever possible. Use techniques like optimistic UI updates, re-syncing with chain state, etc. Monad Testnet blocks are as fast as the blink of an eye; strive to make your app updates at least as fast.

Full blog post here:

Same here

Same here!

How you connected your wallet? Is it possible after connecting with google?

no, that's why I wrote hope will be added...as it's a first test and you get test tokens directly from faucet to play the game