Lottery Tool Box

Double Color Ball Number Generator, Odds & Free Demo

Double Color Ball
6 from 1–33 + 1 from 1–16




Uses your browser’s cryptographic random generator. Every combination has the same chance.

Double Color Ball in a nutshell

Double Color Ball (Shuangseqiu) is the flagship game of the China Welfare Lottery and one of the most-played lotteries in the world. Players pick six red balls from 1 to 33 and one blue ball from 1 to 16. A basic bet costs 2 yuan, and draws take place every Tuesday, Thursday and Sunday at 21:15 Beijing time. New prize-tier rules took effect on 1 February 2026, but the 6/33 + 1/16 matrix – and therefore the jackpot odds of about one in 17.7 million – did not change.

How to play Double Color Ball

  1. Choose six different numbers from 1–33, or let a Quick Pick choose them for you.
  2. Add one bonus number from 1–16. It is drawn from a separate pool, so the same value can appear in both parts of the result.
  3. Wait for the draw and compare your line with the winning numbers; the order does not matter.
  4. The top prize needs all six main numbers plus the bonus number; smaller combinations win lower prizes set by the operator.

What are the odds in Double Color Ball?

A single Double Color Ball line has a 1 in 17,721,088 chance of winning the top prize – that is the number of different combinations the draw can produce. Getting at least three main numbers right is far more common, about one line in 17, while a result of six main numbers without the bonus happens about once in 1,181,406 lines.

Among the 88 lotteries on this site, Double Color Ball ranks number 45 for jackpot odds, where number 1 is the easiest. In Asia, Star Toto 6/50 (1 in 15.9 million) has better odds and Super Lotto (Daletou) (1 in 21.4 million) is harder. Compared with US Powerball, the jackpot is about 16 times easier to hit.

Playing two lines in two draws every week – 208 lines a year – you would wait on average around 85,198 years for one jackpot, so the jackpot is something to dream about rather than plan for.

Free Double Color Ball tools

The number generator gives you up to ten Double Color Ball lines in the exact format of the game, using your browser’s cryptographic random generator. The odds tab lists every match combination, and the demo lets you pick numbers and watch a simulated draw.

The simulator goes further: ten years of two lines twice a week means 2,080 lines, and on average about 110 of them would match exactly three main numbers while the chance of a top prize in that time is only about 1 in 8,520. A random line is no luckier than your favourite numbers, yet it spreads your picks across the whole range instead of the 1–31 that birthday players crowd into.

Independent site: we offer free Double Color Ball tools, not tickets or betting. Real play happens only with the licensed operator. 18+, play responsibly.

Double Color Ball at a glance

Country China
Main numbers 6 / 1–33
Bonus numbers 1 / 1–16
Jackpot odds 1 in 17,721,088
Good to know Prize-tier rules changed 1 Feb 2026; matrix unchanged.
Rules source China Welfare Lottery (Global Times)
Rules checked 2026-11-05d

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Frequently asked questions

How do you play Double Color Ball?

Pick 6 numbers from 1–33, plus 1 bonus number from 1–16. Prize-tier rules changed 1 Feb 2026; matrix unchanged.

What are the odds of winning the Double Color Ball jackpot?

One line has a 1 in 17,721,088 chance of winning the Double Color Ball jackpot. The odds table above shows every other match combination.

Is the number generator really random?

Yes. Numbers come from your browser’s cryptographic random generator, so every combination is equally likely. No generator can improve your odds.

Can I win real money with the Double Color Ball demo?

No. The demo draw and simulation are free and for fun only. Nothing is bought, sold or paid out.

Can I add this Double Color Ball tool to my website?

Yes. Use the free embed code from our widget page and the tool runs on your site with no setup.