Kakuro | Cross Sum Puzzle

Kakuro is the classic cross-sum number puzzle where logic meets arithmetic. Fill every white cell with a digit from 1 to 9. Each horizontal and vertical run must add up to its clue, and digits cannot repeat within the same run. Every puzzle has one unique solution. A FRESH CHALLENGE EVERY DAY Take on the Daily Challenge, compare your time on the leaderboard, and build a history of completed challenges. FOUR DIFFICULTY LEVELS Choose from Easy, Medium, Hard, and Expert. Start with a gentle warm-up or test yourself with a more demanding grid. TOOLS WHEN YOU NEED THEM Use notes to explore possible digits, undo previous moves, erase entries, or ask for a hint when you get stuck. TRACK YOUR PROGRESS Review completed games, win rate, current streak, longest streak, best times, and average times for every difficulty. KEEP YOUR PROGRESS WITH YOU Sign in with Google to sync your statistics and daily challenge progress across supported devices. Signing in is optional for regular play. DESIGNED FOR COMFORT • Clean, distraction-free interface • Light and dark appearance • Clear clue and cell highlighting • Satisfying victory celebrations • Shareable victory results • Optimized for iPhone and iPad • Available in multiple languages Whether you enjoy Sudoku, number games, math puzzles, or pure logic challenges, Kakuro gives you a relaxing way to think, calculate, and improve every day.