Dusk: Calm Sudoku

Dusk is Sudoku made calm. A quiet, meditative sudoku with one promise: it never pushes you. No countdowns, no loss-aversion guilt, no flashing red. Soft feedback, generous whitespace, and a warm dusk palette make this free number puzzle feel like a quiet room to focus. CALM BY DESIGN • Warm paper tones and low-saturation color — never harsh. • Conflicts are shown gently (a soft underline, not an alarm). • Slow, breathing motion. Reduce-motion is fully respected. • Colorblind-safe: meaning is always carried by shape and weight, not color alone. A SUDOKU FOR EVERY LEVEL • Four difficulties: Easy for beginners, Medium, Hard, and Expert for logic veterans. • Pencil notes, number-first input, undo, and a 50/50 cell highlight. • Learn sudoku techniques with coaching hints (Naked Single, Hidden Single, Locked Candidates, and more) — a gentle teacher, not just the answer. • Cell-reveal hints when you want a nudge. A DAILY SUDOKU CHALLENGE • A new daily puzzle every day — the same puzzle for everyone, worldwide. • Each daily challenge can be completed once. Watch your monthly calendar fill up, day by day. • Missed a day? Open it from the calendar and complete the picture. • A gentle streak with Rest Days: miss a day and your record carries over, no shaming. QUIET PROGRESS • A score for every solve — difficulty, time, and a clean board all count. • Levels that grow with you, at your own pace. • Three small daily missions with hint rewards — never a chore. • Personal bests per difficulty: fastest time and highest score. HONEST AND QUIET • Play offline, anywhere — no connection needed for your daily brain workout. • Ads are clearly labeled. Rewards say exactly what you get ("Watch a video for 1 hint"). • No forced or interrupting ads. Close is always available. • Optional, opt-in reminders — off by default. Dusk — a calm sudoku, a quiet room that helps you focus.