Home/ Jigsaw Sudoku Solver/ Jigsaw Sudoku Solver loading · loading · Like · · Author Robby Lawrence Living, laughing, coding A jigsaw Sudoku solver using GLPK. Paint the subgrid regions, fill in the known values, and then solve. 1. Paint Subgrids 2. Enter Values Subgrid: Select a color, then click or drag cells to assign them to that subgrid. Each subgrid needs exactly 9 cells. Reset Clear Values Solve Solution Bold = given · Regular = solved Related SET loading · loading