Prisoner's Dilemma Payoff Matrix

block-beta
columns 3
  H[" "]:1 B_C["B: Cooperate"]:1 B_D["B: Defect"]:1
  A_C["A: Cooperate"]:1 R1["(-1, -1)"]:1 R2["(-10, 0)"]:1
  A_D["A: Defect"]:1 R3["(0, -10)"]:1 R4["(-5, -5)"]:1
classDef hdr fill:#1e3a8a,color:#fff;
classDef coop fill:#dcfce7;
classDef defect fill:#fee2e2;
classDef nash fill:#fef3c7,stroke:#92400e,stroke-width:2px;
class H,B_C,B_D,A_C,A_D hdr
class R1 coop
class R2,R3 defect
class R4 nash