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🇨🇳 Double Color Ball (双色球) · free · cryptographically fair

Double Color Ball number generator

Pull truly random Double Color Ball lines in one tap — 6 red numbers from 1–33 plus 1 blue ball from 1–16. Generate up to 10 lines, copy any with a tap. Runs entirely in your browser; nothing is sent to a server.

6 / 33 + 1 / 16
Red + blue ball
1 in 17,721,088
Jackpot odds
¥2
Per bet (RMB)
Tue·Thu·Sun
Draws, 9:15pm CST

Generate your numbers

Every line uses crypto.getRandomValues with rejection sampling, so each number is exactly equally likely — no bias, no shortcuts.

Lines
1
💡 How it works: 6 red balls (1–33) plus 1 blue ball (1–16), ¥2 per bet. A neat quirk — matching just the single blue ball, even with zero reds, still wins the smallest prize. The jackpot needs all 6 reds and the blue. This is the flagship game of the China Welfare Lottery (双色球).
Why this generator

Fair by maths, private by design

Many online pickers lean on Math.random(), which isn't built to be unpredictable. Ours uses your device's cryptographically-secure randomness — the same class trusted for encryption keys — and we use rejection sampling so no number is quietly favoured over another. Your picks are made on your device and never transmitted anywhere.

Worth saying plainly: a generator can't predict a draw or improve your odds. Every Double Color Ball combination always has exactly the same chance — and at 1 in 17,721,088 the jackpot is far more winnable than Powerball or EuroMillions, even though China runs the biggest lottery market on earth by sales. What this gives you is a clean, unbiased, genuinely random line — and the option to take it further with our SHA-256 entropy generators, where your own mouse movement seeds the result.

🔐 Want provably-fair numbers? Members unlock the SHA-256 entropy edition across every game — you seed the draw yourself by moving your mouse, and each line comes with a verifiable hash receipt.
See membership →
Lottery odds compared 📊 All generators ✨
State-run · unique rules

How China's lottery actually works

Mainland China bans almost all gambling. The only large-scale legal exceptions are two state-run systems: the China Welfare Lottery (中国福利彩票 / 福彩) and the China Sports Lottery (中国体育彩票 / 体彩). Double Color Ball (双色球) is the flagship draw of the China Welfare Lottery (福彩). Both run official sales, draws and prize rules under tight government supervision, with proceeds earmarked for public causes — social-welfare projects for 福彩, sport and public-fitness programmes for 体彩.

A few things make China genuinely different from Western lotteries:

  • Physical tickets only. Online lottery sales have been banned since 2015, so 95%+ of tickets are bought in cash at 200,000+ licensed outlets — you pay face value, no brokerage fee.
  • Strictly 18+. Tickets aren't sold to minors and prizes aren't paid to minors.
  • Winnings are taxed. A single prize over ¥10,000 carries 20% personal income tax; smaller wins are tax-free.
  • The world's biggest market. China booked roughly $418 billion in lottery sales in 2023 — more than any other country.
💴 A quick note on the Yuan (¥). Tickets are priced in Chinese currency. Its official name is the renminbi (人民币, “the people's currency”, ISO code CNY); the yuan (元 / ¥) is the main unit — much like “sterling” is the currency and the “pound” the unit. One yuan divides into 10 jiao or 100 fen. As of 2026 it's roughly ¥7 to the US dollar and ¥9 to the pound, so a ¥2 ticket is about $0.29 / £0.22 — pocket change. Exchange rates move daily.
FAQ

Questions, answered

How does the Double Color Ball generator work?
It picks 6 unique red numbers from 1 to 33 and one blue number from 1 to 16 using your device's cryptographically-secure random generator (crypto.getRandomValues) with rejection sampling, so every number is equally likely. Generate multiple lines and copy each with one tap.
What is Double Color Ball and how much is a ticket?
The China Welfare Lottery flagship: 6 red from 1–33 + 1 blue from 1–16, ¥2 per bet. Draws Tue, Thu & Sun at 21:15 Beijing time. Jackpot odds are 1 in 17,721,088, and matching just the blue ball wins the smallest prize. Record jackpots have topped ¥500M.
Can a generator improve my chances of winning?
No. Double Color Ball is a game of pure chance and every combination always has exactly the same probability. A generator simply gives you a fair, unbiased random line.
Are my generated numbers private?
Yes. The generator runs entirely in your browser. Your numbers are never sent to a server and no sign-up is required.

Play for fun, play responsibly

Double Color Ball (双色球) is a game of pure chance, run by the China Welfare Lottery. This generator produces random combinations only — it does not predict draws or improve your odds, and every combination is equally likely. In mainland China, tickets are sold only at licensed physical outlets (online lottery sales have been banned since 2015), and only the official operator confirms a result or prize.

Play responsibly and only spend what you can afford to lose. Must be 18+ (or your local legal age). Support: GamCare, BeGambleAware, or 1-800-GAMBLER (US).
How does Double Color Ball stack up?
Double Color Ball’s real winning odds & statistics → Compare Double Color Ball with the world’s 18 biggest →