Sudidler: Sudoku 6x6,9x9,12x12

Sudidler is a number-placement logic puzzle built for players who want more than the familiar 9x9 grid. Start with compact 6x6 boards, stay with the classic format, or move into large 12x12, 14x14, 15x15 and 16x16 challenges. Eight board sizes and five difficulty levels let you choose a quick round or a demanding puzzle without changing games. The complete size range is 6x6, 8x8, 9x9, 10x10, 12x12, 14x14, 15x15 and 16x16. Choose Easy, Medium, Hard, Expert or Diamond to match the kind of session you want. A large collection of boards gives each combination room to feel different, from approachable layouts to puzzles that reward careful reasoning. 🔤 Larger grids need more than the digits 1—9. On boards from 10x10 upward, you can switch the display so values above 9 use letters such as A. This optional symbol mode keeps big boards readable while preserving the same clear placement rules. 🏆 Progress is visible beyond a completed grid. Work through more than 180 achievements, review your own single-player results in the leaderboard, and filter records by the available board, difficulty and mode options. Personalize the presentation with more than 25 themes, including styles earned through play and other available unlocks. 💡 When you want assistance, use Show Hint for the selected cell. Show Mistakes costs one hint and highlights every incorrect entry currently visible on the board with a single use, so you can decide what to revisit. These tools support the puzzle without pretending to solve the whole session for you. Sudidler keeps the focus on the grid. There are no forced ads interrupting your puzzle. Pick a board size, set the difficulty and play at your own pace with clean controls designed for both small and large layouts. Choose the format that fits your next session and continue from compact number puzzles to expansive 16x16 grids.