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Author Topic: probiwon.com: New gambling shooting game with 94.2% return  (Read 9421 times)
bitcoinex
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probiwon.com


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January 21, 2011, 07:11:40 PM
 #1

ProBiWon.com

The principle is similar to famous bitcoin darts, just used a different target.

The main innovation: now you can bet a lot of coins at the same coin acceptor address. The address is reserved for a player within 90 days after last use, so you can add it to your address book. (To play will not need to even open the site)



The maximum gain 1000%. The game returns 93%.[/s]


At the time of testing maximum bet is 15 BTC. If you send more then the bet will be cut to 15 bitcoin.

Come and try! No registration is required

http://probiwon.com/

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
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pc
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January 21, 2011, 07:26:03 PM
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Hooray! Just gave it a try, bet 0.05 BTC and hit the 350%! Thanks!

While I really appreciate all the hex at the bottom trying to convince me that the game is fair, I'm not sure what I should do with it (and the same was true for Bitcoin Darts). Can you include on the page what command line I should be passing into openssl (or provide the source to a verification program in some popular language, or whatever) in order to verify the fairness? Otherwise I think we might as well just be trusting you (which works too).

Also, you seem to not wait for any confirmations at all before showing the result or before paying the winnings, which is great for playing quick games, but I hope that it doesn't leave you too open to a double-spending attack.
bitcoinex
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January 21, 2011, 07:46:51 PM
 #3

Hooray! Just gave it a try, bet 0.05 BTC and hit the 350%! Thanks!

Congratulations! Smiley

Quote
While I really appreciate all the hex at the bottom trying to convince me that the game is fair, I'm not sure what I should do with it (and the same was true for Bitcoin Darts). Can you include on the page what command line I should be passing into openssl (or provide the source to a verification program in some popular language, or whatever) in order to verify the fairness? Otherwise I think we might as well just be trusting you (which works too).

Oh, I am forgot about this!

http://probiwon.com/site/index/game/9d62438a-2585-11e0-a627-e395834f75d9
Code:
$ echo -ne 8f1388996b1032ed886e2ce7cdd46c4c | xxd -r -p | sha256sum
a1095f14dfc17e634029fa9d77a4356feb3a92b55bb964d1055d0f39c8a06acd  -

Quote
Also, you seem to not wait for any confirmations at all before showing the result or before paying the winnings, which is great for playing quick games, but I hope that it doesn't leave you too open to a double-spending attack.

We took care of it

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
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January 21, 2011, 08:00:21 PM
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It is so nice to see something finally happening on the "gambling" field! First Double Trouble and now this. Keep up the good work guys!

Bitalo.com coming soon!

1MAHKULzqZb4evFFg9157LvnJhJQQbeYo7
bitcoinex
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January 21, 2011, 08:38:56 PM
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It is so nice to see something finally happening on the "gambling" field! First Double Trouble and now this. Keep up the good work guys!

Thank you

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
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January 22, 2011, 12:30:08 AM
 #6

It looks and works nice, but my luck is bad! Max bet and off the board! Smiley

Play Bitcoin Poker at sealswithclubs.eu. We're active and open to everyone.
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January 22, 2011, 12:35:37 AM
 #7

It looks and works nice, but my luck is bad! Max bet and off the board! Smiley

I had more luck - bet 0.90 and got 13.50 back!

Bitalo.com coming soon!

1MAHKULzqZb4evFFg9157LvnJhJQQbeYo7
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January 22, 2011, 03:56:27 AM
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I like how fast the throw happens. I'm curious about how it works. Do you count a fixed number of seconds from the time you see the transaction show up to avoid double spends? Could this number be displayed as a countdown? Or are you throwing as soon as you first see the tx?
 

Play Bitcoin Poker at sealswithclubs.eu. We're active and open to everyone.
chris200x9
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January 22, 2011, 04:26:36 AM
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It looks and works nice, but my luck is bad! Max bet and off the board! Smiley

I had more luck - bet 0.90 and got 13.50 back!

I made out well too, you got your 5 btc back. Thanks again!
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January 22, 2011, 05:25:32 AM
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I sent  0.5 to the acceptor address and all worked fine, other than only getting back 65% lol.

I then sent another 0.5 to the same acceptor address and nothing has happened since. I may have messed it up because I didn't refresh the web page and click the OK next to the "Player's address" box again. However you also say that the site doesn't even need to be open for it to work, so maybe the problem is elsewhere. It's been 3 confirmations since I sent the second 0.5 and the first one happened quite quickly which makes me think that waiting longer isn't going to do much.

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January 22, 2011, 07:33:23 AM
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I sent  0.5 to the acceptor address and all worked fine, other than only getting back 65% lol.

I then sent another 0.5 to the same acceptor address and nothing has happened since. I may have messed it up because I didn't refresh the web page and click the OK next to the "Player's address" box again. However you also say that the site doesn't even need to be open for it to work, so maybe the problem is elsewhere. It's been 3 confirmations since I sent the second 0.5 and the first one happened quite quickly which makes me think that waiting longer isn't going to do much.

You can go to http://probiwon.com/ and it will show your last game.
Also you can copy link from right top and copy it here to show result, if there is something goes wrong you think.
http://habreffect.ru/files/e7a/fa5a585ae/screenshot1.png
Mahkul
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January 22, 2011, 12:07:45 PM
 #12

It looks and works nice, but my luck is bad! Max bet and off the board! Smiley

I had more luck - bet 0.90 and got 13.50 back!

I made out well too, you got your 5 btc back. Thanks again!

Hah, thanks. If we keep on doing this we may become millionaires - or homeless. Smiley

Bitalo.com coming soon!

1MAHKULzqZb4evFFg9157LvnJhJQQbeYo7
bitcoinex
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January 22, 2011, 06:29:16 PM
 #13

Double spend protection are enabled.

Max bet is increased to 15 BTC.

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
wobber
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January 23, 2011, 10:26:26 AM
 #14

Can I add daily bets on BitBet for the probability of someone winning 3500% on PROBIWON?

If you hate me, you can spam me here: 19wdQNKjnATkgXvpzmSrkSYhJtuJWb8mKs
bitcoinex
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January 23, 2011, 10:41:47 AM
 #15

Can I add daily bets on BitBet for the probability of someone winning 3500% on PROBIWON?

Of course! Smiley

When we did the last test before opening the site, we threw in a row 1500% and 3500%

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
bitcoinex
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January 24, 2011, 12:58:19 PM
 #16

The target was changed!

100% gain ring replaced by 110% and also changed other rings to provide same return 94%

For games played earlier probiwon.com now did not shows arrow in the results of shooting because target was changed. Also some users could lose cookies that store his addresses - sorry, please enter your address again.

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
fabianhjr
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January 24, 2011, 02:26:40 PM
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A quick question. Could you show some pseudocode of how you handle the bets? Does the acceptor plays any role in the odds? What are the odds of each individual ring?

bitcoinex
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January 24, 2011, 03:14:51 PM
 #18

A quick question. Could you show some pseudocode of how you handle the bets? Does the acceptor plays any role in the odds?

After creation of a new addresses pair (your address + acceptor address) site generates random secret, shows sha256(secret) to you and waits for your bet. After bet is accepted and game played new random secret generated immediately and site waits bet again.

Quote
What are the odds of each individual ring?

Each ring of various diameters and area, respectively, the different probability of shooting to them.
Each ring has a width 0.05 of a target radius. (But 1500% ring and 3500% circle has radius and width 0.025 each.)

My calculations of probability for each ring (from center):

0.0019634954 <- 3500%
0.0058904862 <- 1500%
0.0235619449
0.0392699082
0.0549778714
0.0706858347
0.086393798
0.1021017612
0.1178097245
0.1335176878 <- 65%
0.149225651 <- 50%

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
nelisky
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January 24, 2011, 03:18:38 PM
 #19

Major kudos to you, this game is an awesome way of loos^H^H^Hgambling Smiley

Although, maybe a little rounding is in order?

110.00000000000001%
You won 1.10 BTC
Your bet 1 BTC

Heh
bitcoinex
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January 24, 2011, 03:32:35 PM
 #20

Major kudos to you, this game is an awesome way of loos^H^H^Hgambling Smiley

Although, maybe a little rounding is in order?

110.00000000000001%
You won 1.10 BTC
Your bet 1 BTC

Heh

This game? http://probiwon.com/site/index/game/0de06f02-27c4-11e0-b63c-6f09a48f663d
We will fix it. Thank you!

New bitcoin lottery: probiwon.com
- Может, ты ещё и в Невидимую Руку Рынка веруешь? - Зачем же веровать в то, что можно наблюдать непосредственно?
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