#define _USE_MATH_DEFINES
#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
#include<string>
#include<iomanip>
#include<numeric>
#include<queue>
#include<deque>
#include<stack>
#include<set>
#include<map>
#include<random>
using namespace std;
typedef long long ll;
const int mod=1e9+7;
int tmp[2][200000];
int main(){
	static int t,n,a[200001];
	cin>>t;
	while(cin>>n>>a[0]){
		for(int i=1;i<=n;i++)
			cin>>a[i];
		if(a[n]!=a[0]){
			cout<<"No"<<endl;
			continue;
		}
		tmp[0][0]=a[1];
		bool ok=1;
		for(int i=0;i<n-1;i++){
			tmp[1][i]=a[i]-tmp[0][i];
			if(tmp[1][i]<0)
				ok=0;
			tmp[0][i+1]=a[i+2]-tmp[1][i];
			if(tmp[0][i+1]<0)
				ok=0;
		}
		if(tmp[0][n-1]!=a[n-1]){
			cout<<"No"<<endl;
			continue;
		}
		cout<<(ok?"Yes":"No")<<endl;
	}
}