Some further links:

Iterated Prisoner’s Dilemma contains strategies that dominate any evolutionary opponent

https://www.ncbi.nlm.nih.gov/pubmed/22615375

Extortion and cooperation in the Prisoner’s Dilemma

http://numerical.recipes/whp/StewartPlotkinExtortion2012.pdf

Zero-Determinant Strategies in the Iterated Prisoner’s Dilemma

https://golem.ph.utexas.edu/category/2012/07/zerodeterminant...