Sudoku Kuro is a beautifully crafted sudoku app designed for players of all levels, from complete beginners to seasoned experts. FOUR DIFFICULTY LEVELS Pick your challenge. Easy puzzles ease you in, while Expert grids push even the most experienced solvers. Hundreds of hand-curated puzzles ensure every game is satisfying and fair. DAILY CHALLENGE A fresh puzzle every day. Complete it to build your streak. How many days can you keep going? A weekly Streak Freeze gives you one safety net so a busy day doesn't break your run. LEARN TO SOLVE LIKE A PRO The built-in Learn mode teaches you 11 real solving techniques, from Naked Singles all the way to X-Wing and Swordfish. Each technique includes an interactive tutorial and a quiz. Master them all and watch your solve times drop. SMART HINTS THAT TEACH Stuck on a cell? Hints come in three levels. A gentle Nudge points you in the right direction. Teach explains the technique you need. Reveal shows the answer. Three free hints every day, no purchase required. TRACK YOUR PROGRESS Detailed statistics show your total games, perfect runs, best times, and streaks. Unlock 15 achievements as you play. Earn the Night Owl for late-night solves or the Speed Demon for finishing Easy in under three minutes. ELEGANT THEMES Choose from 8 themes including the signature dark gold and warm parchment styles. High contrast and bold number options make the board comfortable for every player. HOME SCREEN WIDGETS Stay on top of your Daily Challenge and track your streak right from your Home Screen. Sudoku Kuro is free to play with optional premium features for unlimited hints and all themes.