Solving a corn puzzle with CP-SAT
a day ago
- The author used OR-Tools CP-SAT library instead of recursive backtracking to solve a corn puzzle.
- The puzzle is modeled with binary variables representing each possible placement of a piece, with constraints that each piece is used exactly once and each spot is covered exactly once.
- The same CP-SAT approach was applied to Sudoku as a simpler example, using integer variables and all-different constraints.
- The key lesson is to use existing industrial-strength solvers rather than implementing custom algorithms for constraint satisfaction problems.