- Where do the historic prices come from?
- All prices are the original USD launch retail prices sourced from Wikipedia, press releases, and documented historical records. They represent what a consumer would have paid on day one of sale — not inflation-adjusted, not street prices. For example, the original 1984 Macintosh launched at $2,495, the Game Boy launched at $89.99 in the US in 1989, and the first iPhone launched at $499 (4 GB) in 2007.
- How is the daily puzzle chosen?
- The puzzle rotates daily using a deterministic date-based hash. Everyone playing on the same calendar day sees exactly the same product — no server needed, the logic runs entirely in your browser. Your completion is saved in your browser's localStorage so you won't be shown a puzzle you already solved today.
- What counts as "within 10%"?
- If your guess is within 10% of the correct price in either direction, the hint shows as "warm" (orange). So for a $500 product, guesses between $450 and $550 are "within 10%". Correct means an exact match. This closeness hint helps you zero in on the right answer without giving it away completely.
- Why is the slider range different each day?
- The slider range is automatically set to span a sensible range around the actual answer — wide enough that it's still a real challenge, but not so huge that you'd spend all day scrolling. The $±$1/$10/$50 buttons let you fine-tune once you're in the right ballpark.
- Can I play past puzzles?
- The daily puzzle changes at midnight your local time. Each calendar day has exactly one puzzle. There is no archive of past puzzles — the game is designed as a shared daily experience, like the original Wordle, so everyone talks about the same puzzle on the same day.