📐 Methodology
PriceGuess builds its puzzles from historical price snapshots, publicly available market data, and curated sample data. Every game mode uses a specific mix of data, and every number is either a past record or a publicly reported reference point.
Kinds of data we use
- •Historical prices: recorded closing prices / indices from a specific date (e.g. gold per ounce, split-adjusted stock closes, daily crypto prices)
- •Sample listings: representative examples modeled on real markets (real estate, shopping, salary, tuition, etc.)
- •Derived measures: figures based on public reports like the Big Mac Index
Reference date and currency
Each puzzle lists a reference date and currency where applicable. USD is the default; Korean-market puzzles use KRW. Units such as 1 oz, 1 share or 1 coin are stated per puzzle.
Delay, errors, and external dependencies
Prices are not live. They are snapshots captured at publishing time and may differ from current markets. Collection, rounding, and currency-conversion can add ≈±1–5% error, and upstream providers may restate their own numbers. We correct issues when they are confirmed.
API and data-provider dependency
PriceGuess references public sources such as Kitco, CoinGecko, Yahoo Finance, KB Real Estate, the Bank of Korea / ECB / BOJ, and the EIA. If any provider changes policy, rate-limits, or restates data, the displayed values may change or certain items may become unavailable. When that happens, we retire affected puzzles or replace them in a later update.
Scoring
Numeric modes count an answer as correct when the error is within 5%; multiple-choice modes require the exact selection. Streaks and ranks are stored only in your browser and are never sent to a server.
🎯 Intended use
PriceGuess is an educational, entertainment-only game for training price intuition. It must not be used for real trading, asset allocation, financial planning, tax, or accounting decisions. For real investment choices, rely on regulated brokers, official filings, and qualified professionals.
⚠️ Not investment advice
Nothing on this site — numbers, commentary, hints — should be read as a buy/sell recommendation or a promise of returns. Make real investment decisions based on regulated brokers and official filings.
Ads kept separate from content
Even when Google AdSense ads are shown, they do not affect correct answers, scores, puzzle selection, or data updates. Ad revenue does not bias the content toward any particular asset or brand.
Report a data issue
Spot a wrong price? Email yuseong2099@gmail.com. yuseong2099@gmail.com