/** * author: tourist * created: 02.08.2018 17:59:02 **/ #include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); cin.tie(0); int tt; cin >> tt; while (tt--) { int n; cin >> n; int top; cin >> top; int ok = 1; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { if (i + j == 0) continue; int cur; cin >> cur; ok &= (cur == (top + i + j) % 2); } } cout << (ok ? "Yes" : "No") << '\n'; } return 0; }