static SquareType** copySquares(SquareType** originalSquares, int length,
        int width) {
    if (!originalSquares) {
        return NULL;
    }
    SquareType** newSquare = malloc(sizeof(SquareType**) * length);
    if (!newSquare) {
        return NULL;
    }
    newSquare[0] = malloc(sizeof(SquareType) * width * length);
    if (!newSquare[0]) {
        free(newSquare);
        return NULL;
    }
    for (int i = 0; i < length; i++) {
        newSquare[i] = (*newSquare + width * i);
    }
    for (int i = 0; i < length; i++) {
        for (int j = 0; j < width; j++) {
            newSquare[i][j] = *(*originalSquares + (i * width) + j);
        }
    }
    return newSquare;
}