Showing 81–100 of 1,000 ranked alternatives.
UNITED MARKETING TECHNOLOGIES,INC.
Play and claim gift cards
Solve puzzles with 9x9 grids divided into 3x3 blocks. Enter numbers 1-9 in empty squares. Check for valid moves and complete puzzles to qualify for Amazon.com Gift Card sweepstakes. View results and copy gift codes if won.
The Chess Solitaire Sudoku Factory Ltd
Play puzzles anytime, any difficulty
Solve puzzles with varying difficulty levels. Input numbers manually or transfer from newspapers. Use pencil and paper style tools for notes and hints. Track possible numbers with a ball of string. Access expert-level hints like Swordfish.
Red Key Software Corporation
Play puzzles of varying difficulty
(Free) lets users play puzzles with four skill levels. Features include showing incorrect answers in red and using smart buttons. Users can track progress, undo moves, and reset puzzles. Options allow customization of game settings.
BitMango, Inc.
Play and solve puzzles
Allows users to play a logic-based puzzle game. Fill a 9x9 grid with numbers 1 to 9. Each row, column, and 3x3 subregion contains unique digits. Track mistakes and lose if exceeding three errors.
TOKYO KYOKUJOY LLC
Play puzzles anytime
Solve puzzles by filling a 9x9 grid with numbers 1-9. Use logical deduction based on given clues. Adjust difficulty settings. Track progress and reset puzzles. Share completed grids.
John Detloff
Play puzzles anytime
Solve puzzles by filling grids with digits. Enter numbers in rows and columns to match clues. Avoid repeating digits in any row or column. Access a large library of free puzzles. Track progress and restart puzzles.
Raymond Kim
Solve puzzles with AI hints and notes
Allows users to solve puzzles with adjustable difficulty levels. Users can edit notes, highlight rows, columns, and squares, and undo moves. The supports dark mode for comfortable play and includes an AI-powered hint feature.
俊杰 龚
Solve puzzles and track your progress
Solve puzzles with varying difficulty levels. Track progress and compete globally. Adjust settings for hints and difficulty. Share achievements on social media. Features include clear graphics, puzzle validation, and automatic error checking.
Chaohsien Lee
Play puzzles anytime
Play with randomly generated puzzles to avoid repetition. Choose from X , Super , Jigsaw , 16x16 , and Samurai . Challenge friends or other players online. Sync with Game Center.
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