Penalty Kick as a Zero-Sum Game

A striker chooses Left or Right, and a goalkeeper chooses Left or Right. The striker's success probabilities are \[ \begin{pmatrix} 0.6 & 0.9 \\ 0.8 & 0.7 \end{pmatrix}, \] where rows are the striker's choices and columns are the keeper's choices. Treat this as a zero-sum game with Row = striker. Find the equilibrium mixing probabilities and the value.