Graph the Expected Values of the Payoffs for the possible percentages for each strategy. You can change the payoff matrix by sliding the values. Also change the probabilities for each player playing each strategy, by dragging the blue dot (for Rose) and the red dot (for Colin).
Determine each players maximin or minimax stragtegy. Notice that the expected values for each player are always equal to each other.

This is a Java Applet created using GeoGebra from - it looks like you don't have Java installed, please go to

John Maharry, 12 February 2013, Created with GeoGebra