The Sudoku game provides 60000+ puzzles in 6 different complexity levels. One star puzzles are pretty easy.If you are new player with little experience, you could choose One or Two star game to begin with. After you accumulated more and more knowledge about The game, you could move on to select three or four star puzzles. When you are quite handy with The game, you could select five star or six star puzzles to explore your brain potential.