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Sudoku meets the joy of travel. Passport Sudoku turns every puzzle into a journey. Explore Nordic destinations, complete increasingly challenging stages, and collect passport stamps as you sharpen your logic skills. EXPLORE THE NORDIC WORLD TOUR Travel through Helsinki, Stockholm, and Oslo. Discover destination artwork and local facts, then solve four stages at each stop—from an easy Arrival to an expert Departure Challenge. PLAY YOUR WAY Choose from 4×4, 6×6, and classic 9×9 grids in Free Play. Select your difficulty and enjoy freshly generated puzzles, each checked to ensure it has exactly one solution. LEARN AND IMPROVE New to Sudoku? Begin with the guided 4×4 tutorial. When you need help, logical hints explain the next move instead of simply filling the board. EVERYTHING YOU NEED TO SOLVE • Pencil marks • Undo and redo • Pause and resume • Automatic candidate removal • Optional mistake checking • Row, column, region, and matching-value highlights • Exact progress restoration • Timer and detailed statistics MAKE THE JOURNEY YOUR OWN Switch between numbers and travel-inspired symbols, choose your preferred appearance, earn achievements, and build a passport filled with stamps from completed destinations. DESIGNED FOR ACCESSIBILITY Passport Sudoku supports VoiceOver, Dynamic Type, Increase Contrast, Reduce Motion, larger controls, enhanced grid contrast, and keyboard shortcuts. PRIVATE AND OFFLINE No account. No advertising. No analytics. No location access. No network connection or additional permissions required. Your puzzles, settings, statistics, and passport remain on your device. Ready for your next departure?
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