This is played with two playing pieces, each with its own board. Although the pieces start in different squares, they will make the same moves at each step. For example, you might move both of them one space to the right. They will always stay on their respective boards.
The pandemic made setting things up a little tricky, but I made sure you won't have to go explore outside to get the boards.
This puzzle involves information inside my sister's house. For an optimal solving experience, see if she'll let you in. If not, this image will make the puzzle solvable but also kind of trivialize it.