You are given a $3 \times 3$ matrix grid containing characters 'B' and 'W', representing black and white cells respectively.

Determine if it is possible to form a $2 \times 2$ square where all four cells have the same color by changing the color of at most $1$ cell.

Return true if it is possible, or false otherwise.

Constraints:

• grid.length $= 3$

• grid[i].length $= 3$

• grid[i][j] is either 'W' or 'B'.

Now, let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:

We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.

Implement your solution in the following coding playground.