why getting wrong answer ? someone explain whats wrong with this code. (Encoder - Knight Chess)
for _ in range(int(input())):
knight_pos=[]
for _ in range(int(input())):
knight_pos.append((map(int,input().split())));
x,y=map(int,input().split())
king_move=[(x,y-1),(x+1,y-1),(x+1,y),(x+1,y+1),(x,y+1),(x-1,y+1),(x-1,y),(x-1,y-1)]
attack_pos=[]
for j in knight_pos:
attack_pos.append((j[0]+1,j[1]-2))
attack_pos.append((j[0]+2,j[1]-1))
attack_pos.append((j[0]+2,j[1]+1))
attack_pos.append((j[0]+1,j[1]+2))
attack_pos.append((j[0]-1,j[1]+2))
attack_pos.append((j[0]-2,j[1]+1))
attack_pos.append((j[0]-2,j[1]-1))
attack_pos.append((j[0]-1,j[1]-2))
f=0
for j in king_move:
if j[0]<0 or j[1]<0 or j[0]>7 or j[1]>7:
continue
else:
if j not in attack_pos:
f=1
break
if(f==1):
print("NO")
else:
print("YES")