Rule Machine

Crack today's hidden rule from solved examples. One compact daily logic puzzle, with hints, reveals, practice, streaks, and spoiler-free sharing.

Rule Machine is a daily logic puzzle about figuring out how a hidden machine works.

Each puzzle shows solved examples. Study the inputs, infer the rule, then run the final row by entering one missing number. You get three guesses, a hint when you need a nudge, and a reveal that explains the rule after you solve, miss, or choose to peek.

Play today's Rule Machine, keep a local streak, try practice puzzles, revisit completed daily puzzles in the archive, and share your result without spoiling the answer.

What you can expect:

• One compact daily hidden-rule puzzle
• Solved examples and one final missing output
• Hints that nudge without giving everything away
• Rule reveals that show how the machine worked
• Practice puzzles for extra deduction
• Streaks, stats, archive history, and spoiler-free sharing
• Optional Apple account and leaderboard visibility controls

Rule Machine is built for people who like pattern recognition, deduction, and that small "now I see it" moment.