boolean checkBelowLeftDiagonal(int player){
		int counter=0;
		for(int i=0;i<row;i++){
			counter=0;
			int temp=i;
			int j=0;
			while(i<row&&j<column){
				if(board[i][j]==player){
					counter++;
				}
				if(board[i][j]!=player){
					counter=0;
				}
				if(counter==aim){
					return true;
				}
				i++;j++;
			}
			i=temp;
		}
		return false;
	}