Z3 is an SMT solver that can be used for formal verification, model checking, and other purposes.It combines the power of SAT solvers and other types of solvers to handle more complicated formulas involving multiple theories.Z3 can be applied to solve a variety of problems, including cracking binaries, solving equations, and control flow analysis.With some knowledge about Z3, users can tackle complex problems like Rubik's cube, Sudoku, and magic squares.