What’s new:
• A monthly calendar to browse previous puzzles.
• Private progress, so returning readers can see what they’ve solved.
• Collections by reasoning style: logic, probability, visual traps, strategy, numbers, lateral thinking, and classics.
• Shareable results.
I’d love to know whether the calendar and progress features make it feel more worth returning to daily.
One riddle a day, with hints, free-form answer checking, explanations, streaks, and spoiler-free challenge links.
No account, no ads, no feed, no algorithm — just a small daily thinking habit you can send to a friend.