Open-source Sudoku app designed for customization and ease of use with 6x6, 9x9, and 12x12 boards, four difficulties, extensive stats, history, and the ability to create, import, and save puzzles.




Hard Sudoku is described as 'Hard-sudoku.com is a special puzzle game website for sudoku games with hard level, here you can play sudoku with hard level and record your time' and is a Puzzle Game in the games category. There are 2 games similar to Hard Sudoku for Web-based, Android and F-Droid. The best Hard Sudoku alternative is LibreSudoku, which is both free and Open Source.
Open-source Sudoku app designed for customization and ease of use with 6x6, 9x9, and 12x12 boards, four difficulties, extensive stats, history, and the ability to create, import, and save puzzles.




Sudoku Challenge is a free competitive Sudoku platform that goes beyond traditional puzzle play. Features include real-time multiplayer tournaments with live leaderboards and spectator mode, 1v1 duels with Elo-based matchmaking, three daily challenge puzzles with streak...



