+
+\subsection{Generalization}
+Variations of the game can be solved with the same machinery my only changing
+$\mathcal{P,M},g$ and $h$. For example \emph{European peg solitaire} can be
+solved by updating $g,h,\mathcal{P}$ and $\mathcal{M}$ to $g',h',\mathcal{P'}$
+and $\mathcal{M'}$ as follows:
+$$\begin{array}{l}
+ h'=(3,2), g'=(3,4)\\
+ \mathcal{P'}=\mathcal{P}\cup\{\langle1,1\rangle,\langle5,5\rangle,
+ \langle5,1\rangle,\langle1,5\rangle\}
+\end{array}$$
+And define $\mathcal{M'}$ the same as $\mathcal{M}$ but using $\mathcal{P'}$
+instead of $\mathcal{P}$.