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\begin{center} 
% macro for inputing payoff vectors 
\newcommand{\payoff}[4][below]{\node[#1]at(#2){$\dbinom{#3}{#4}$};}
\resizebox{7cm}{!}{% 
\begin{tikzpicture}[scale=1,font=\footnotesize,thick] 
  % Two node styles: solid and hollow 
  \tikzstyle{solid node}=[circle,draw,inner sep=1.2,fill=black]; 
  \tikzstyle{hollow node}=[circle,draw,inner sep=1.2]; 
  % Specify spacing for each level of the tree 
    
  \tikzstyle{level 0}=[level distance=15mm,sibling distance=45mm, every child node/.style={hollow node}] 
  \tikzstyle{level 1}=[level distance=15mm,sibling distance=27mm, every child node/.style={hollow node}] 
  \tikzstyle{level 2}=[level distance=15mm,sibling distance=18mm,
  every child node/.style={hollow node} ] 
  \tikzstyle{level 3}=[level distance=15mm,sibling distance=18mm, every child node/.style={solid node}]
  % The Tree 
\node(0)[hollow node]{} % beginn leere Folge 
  child{node(1){} %erster Ast links
  		child{node[label=left:$1$]{} %davon der linke Ast und dann die Abzweigungen
        child{node{}edge from parent node[left]{$g$}} 
        child{node{}edge from parent node[right]{$h$}} 
        edge from parent node[left]{$c$}  
      } 
       child{node[solid node]{}edge from parent node[right]{$d$}} 
       edge from parent node[left]{$a$} %beschriftung vom ersten
       }
      child{node(2){} %zweiter erster Ast
        child{node[label=right:$1$]{} % davon der linke Ast und dann kommen die abzweigungen
        child{node{}edge from parent node[right]{$i$}} 
        child{node{}edge from parent node[right]{$j$}} 
        edge from parent node[left]{$e$}
      } 
      child{node[solid node]{} edge from parent node[right]{$f$}} 
        edge from parent node[right]{$b$} 
      }; 

% specify movers 
  \node[above]at(0){$1$}; 
\node[left]at(1){$2$}; 
\node[right]at(2){$2$}; 

% 
% payoffs 
% payoffs 
\foreach \p/\o/\u in 
   {1-6-1/1/2 , 1-1-2/5/4, 1-5/2/1 , 2-1-1/0/8 , 8-1-2/4/3, 2-2/3/5} 
   {\payoff{\p}{\o}{\u}}

    

\end{tikzpicture} %
}
\end{center} 

\begin{tikzpicture}[
 font=\footnotesize,
 every child/.style={black,thin}% Standardeinstellungen für child
]

child{node{}edge from parent [line width=1pt,red] node[right]{$i$}}