Sudoku and grid puzzle solvers
Type in your grid and get the solution, or one hint at a time. Start with the sudoku solver, which has siblings for killer, samurai and 16x16 grids. For number-sum grids try kakuro and the kakuro combinations chart; for Latin squares, futoshiki, calcudoku and the skyscraper puzzle; for picture grids, nonograms; and for paths, loops and islands the Flow Free, hidato, slitherlink, nurikabe and hashi solvers. Star battle, binairo, pentominoes and logic grid puzzles are here too.
Sudoku family
Sudoku solverType your grid, get every step explainedKiller sudoku solverDraw the cages, enter the sums, solveSudoku X solverDiagonal sudoku with both diagonals checkedJigsaw sudoku solverPaint irregular regions, then solve with hintsSamurai sudoku solverFive overlapping grids solved together16x16 sudoku solverGiant hexadecimal sudoku with 1 to 9 and A to GHow to solve sudokuRules, pencil marks and first techniques, with live gridsSudoku techniquesAll 40 strategies with real example gridsX-wing sudokuRows and columns versions, real solver examples
Other grid puzzles
Kakuro solverSum clues in, digits out, with combinationsNonogram solverPicross and griddlers, solved line by lineFutoshiki solverGreater-than puzzles from 3x3 to 9x9Calcudoku solverMath cage puzzles, 3x3 up to 9x9Logic grid solverWho owns what: clues in, grid and reasoning outSlitherlink solverFind the one loop around the numbersStar battle solverPaint the regions, see where the stars goBinairo solverTakuzu and binary puzzles with 0s and 1sKakuro combinationsEvery sum, every run length, filter by digitFlow Free solverNumberlink paths, every pair connectedSkyscraper solverClues around the grid, heights insideHidato solverNumber path puzzles with diagonal stepsNurikabe solverIslands and one connected black wallHashi solverBridges puzzles, single and double linesPentomino solverTile any shape with the 12 pentominoes
More: Cube solvers and timer · Game solvers · Number and logic puzzles · All solvers