 Of Axelrod's five suggested success criteria, the one that seems most clearly undermined by the later tournament is “clarity”.  Neither of the two highest-scoring strategies, Adaptive Pavlov (APavlov) and Omega Tit for Tat (ΩTFT, have near the simplicity of Rapoport's tit-for-tat. Both are broadly adaptive in the sense of Tzafestas, but the first is more narrowly crafted than Tzafestas's for what its designer expected the tournament environment to be, and the second replaces Tzafestas's world variable with a pair of measures intended to measure "deadlock" and randomness.