Based on example from: http://modelai.gettysburg.edu/2013/cfr/cfr.pdf
ruby rps.rb
Running for 50000 iterations...
Player one strategy start: Rock: 0.33, Paper: 0.33, Scissors: 0.33
Player two strategy start: Rock: 0.4, Paper: 0.3, Scissors: 0.3
Player one strategy end: Rock: 0.33, Paper: 0.34, Scissors: 0.33
Player two strategy end: Rock: 0.33, Paper: 0.34, Scissors: 0.33