Sudoku Solver

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    About

    Sudoku Solver . Play, solve and learn 9x9 Sudoku, with hints that explain every step. Works offline.

    Start a new puzzle?

    This clears the board, and the numbers you've written will be gone.

    Controls and shortcuts

    Click a squarePick it; then type or click a digit
    1–9 (or the number pad)Write a digit; with Notes on, write a note
    Shift+1–9Write a note, even with Notes off
    Delete / Backspace / 0Erase the square
    ↑ ↓ ← →Move around the grid
    N / PNotes on or off / Fill many on or off
    HHint; press again to do the step
    CCheck your digits
    Space, [ / ]Play or pause the steps / step back or forward
    Ctrl+Z / Ctrl+YUndo / redo
    Alt+N / Alt+ENew puzzle / Enter my own puzzle
    EscClose a hint, stop Fill many, or unpick the square
    ?This help

    Tutorial

    Learn Sudoku

    Nine short lessons: the rules, the tricks people use (from singles to the X-Wing) and the other puzzle types. Each one asks you a quick question.

    App tour

    A short tour that points at each part of the app and says what it does.