We'll start by building the Cplayer contract, which is responsible for managing player accounts. Going forward, we will use Solidity to build it as a CRUD smart contract.

As you know, the CRUD paradigm is common in constructing web applications as its operations generally constitute the fundamental structure. In fact, the CRUD acronym's create, read, update and delete operations represent the basic operation we'll need to perform on the data repository (Smart contract storage) while managing the players.

At this point, to build a CRUD contract, we first need to understand where and how data is stored and accessed in Ethereum's blockchain.