Number Place
The number-placement logic puzzle on a 9×9 grid. Every puzzle is generated fresh and checked to have exactly one solution, in three difficulties. Pencil notes, undo and a count of the digits left on the keypad help you along, and a puzzle in progress is saved on this device.
- Puzzle
- Portrait
- Touch
- Mouse
- Keyboard
- Saves progress on this device
How to play
Fill the grid so that every row, every column and every 3×3 block holds the digits 1 to 9, each exactly once. The bold white digits are given and cannot be changed. Tap an empty cell, then a digit on the keypad. Turn on Notes to write small candidate digits in a cell; placing a digit removes it from the notes in its row, column and block. A digit that clashes with another in the same row, column or block turns red. The keypad shows how many of each digit are left to place. Beginner starts with about 41 givens, Intermediate about 33 and Advanced about 27. Your best time and solved puzzles are kept for each difficulty.
Controls
Touch or mouse: tap a cell, then a digit. ⌫ Erase clears a cell, ↶ Undo takes back a move, ✎ Notes switches to candidates. Keyboard: arrow keys move, 1–9 enter a digit, 0, Backspace or Delete clears, N switches notes, U or Z undoes.
Credits
This game is a modified version of an open-source game:
- github.com/mashukui/web-games
- Copyright (c) 2026 mashukui (马哥python说)
- MIT License (License text)
More games
- CheckersThe classic game of jumping pieces on an 8×8 board, against the computer in three strengths. Jump over the computer's pieces to take them, crown your pieces as kings, and take them all to win. Play red or white, take back moves, and continue a game in progress later on this device.
- GomokuFive in a row on a 15×15 board, against the computer in three strengths. Take turns placing stones and be the first to line up five across, up and down or diagonally. Play black or white, take back moves, and continue a game in progress later on this device.
- Parking PuzzleA sliding puzzle in a crowded car park, in 30 stages. Slide the cars and trucks along their lanes to clear a way, and drive the red car out through the exit. Each clear earns up to three stars for the moves you took, a hint shows the next move, and your progress is kept on this device.
- Gem MatchA match-3 puzzle in 30 stages. Swap neighbouring gems to line up three or more of the same shape, and reach each stage's goals before the moves run out: a score, gems to collect or gold squares to clear. Stages open one by one, a clear earns up to three stars, and your board is kept on this device.
- NonogramA picture logic puzzle in 30 stages, from 5×5 to 12×12. The numbers beside each row and column tell you which squares to fill, and a picture appears in colour when you finish. Every puzzle can be solved without guessing. Stages open one by one, and your progress is kept on this device.
- 2048The number-merging puzzle. Slide the tiles and join matching numbers until you make a 2048 tile, then set your sights on 4096 and beyond. Tiles glide into place, one move can be undone, and a game in progress is kept on this device.
