Bitcoin Forum

Hello everyone,

I would like to proudly present to the BitCoin community a new BlackJack Bitcoin-based game.

You can deposit every amount >= 0.01 BTC, you can withdraw anything > 0.10 BTC.

Minimum bet: 0.01 BTC
Maximum bet: 1.00 BTC

Rules:

• 8 Decks
• Dealer stands on 17
• Win = 2*bet
• BlackJack = 1.5*bet + bet
• Draw = Push, bet is returned to player

Last winnings:

Username	Amount won	Transaction
tysat	0.51	http://blockexplorer.com/tx/492d49ed8067916ea9d1c4d853ac8ee71d67d83c6d15288808186846b17709e9 (http://blockexplorer.com/tx/492d49ed8067916ea9d1c4d853ac8ee71d67d83c6d15288808186846b17709e9)
MasonIII	1.72	http://blockexplorer.com/tx/8b180608a0098fe791408d985e02977020932ac027de05298f69dc544f254400 (http://blockexplorer.com/tx/8b180608a0098fe791408d985e02977020932ac027de05298f69dc544f254400)
MasonIII	0.58	http://blockexplorer.com/tx/3eef50ea9c9a634b08c41b7071cc3e1680119eea41005e446db06ef1a4f70bca (http://blockexplorer.com/tx/3eef50ea9c9a634b08c41b7071cc3e1680119eea41005e446db06ef1a4f70bca)
twalters	5.17	http://blockexplorer.com/tx/c27e04a5805996da7c87f5d3ce4b7d56814fcd778a26c3acf29fe2de98c754e9 (http://blockexplorer.com/tx/c27e04a5805996da7c87f5d3ce4b7d56814fcd778a26c3acf29fe2de98c754e9)
geek-trader	1.01	http://blockexplorer.com/tx/20e400d1a49645a2b955b5bed534531fcd32eece35ff3f11378affe38bc22822 (http://blockexplorer.com/tx/20e400d1a49645a2b955b5bed534531fcd32eece35ff3f11378affe38bc22822)

Please let me know what you think, I am really looking forward to your comments :) !

Enjoy! ;)

Update 11 July 2011 10:00 GMT: Right now we have almost 20 users, 5 have deposited (SilverLeaf, Morti, MasonIII, blabla123, tysat), 4 (SilverLeaf, Morti, MasonIII, tysat) have withdrawn more than the amount they deposited (SilverLeaf 0.02 -> 0.12, MasonIII 0.14 -> 2.30, tysat 0.50 -> 0.51 ...) :) .

Update 11 July 2011 13:00 GMT: Almost 30 users, automatic withdrawals re-enabled :) .

Update 14 July 2011 13:00 GMT: 50 users, several winners, rules added to the site.

What's the upper limit on bets?

Is there one?

Yes, Minimum bet is 0.01 BTC, Maximum bet is 1 BTC .

They can be changed, I'm open to suggestions :) .
Please try with small amounts now, it's in early stage :) .

Tried with 0.02, 0.12 withdrawn successfully :D !
Keep it goin!

Thanks for trying and congratz on your winnings! :)
Any suggestion for the site?

I deposited 0.85, then it said my balance is 0.06. I clicked New Game with 0.01. Nothing happened. Clicked again. Nothing. Checked back, balance is 0.04. Now it says my balance is 0.23 and seems to be steadily increasing in a weird way.

I'm confused. Can I have my 0.85 back please?

It says 0 now.

Now it's -0.07. I think the site might be broken. :P

I was withdrawing and I had 1.92 BTC in my account and I tried to withdraw 1.72.  However, this page came up http://gyazo.com/a79f71f157ed5050bd2b0cbdd59c45c7.png when I clicked withdraw.  Now when I check my account, there is only .20 BTC remaining but the withdrawal did not and does not show in my client.  My account is MasonIII and my return address is 151DXRY7zHRMBzZuDTAoNyiEDVgz4JZ9Sw 

Aside from that, your game seems to working.

That's exactly the problem I just had. The 0.85 started showing in my account so I tried to withdraw it back and I got the same thing.

Brought the site down for investigating.

Will let you know very shortly.

Cheers. :)

Thanks

Please try to withdraw again and let me know, sorry for this, but don't worry, I'm here and I'll fix everything with your help :) .

Same error again.

Just tried to withdraw 0.1 out of 0.2 remaining in my account.  Same error, same result, now my balance is .10 and still no confirmation of either the 1.72 or .10 withdrawal in my client.

Ok, please hold still, I'm investigating.

Your full balance will be restored.

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/bottle-0.9.5-py2.7.egg/bottle.py", line 651, in _handle
    return callback(**args)
  File "/usr/lib/python2.7/site-packages/bottle-0.9.5-py2.7.egg/bottle.py", line 1143, in wrapper
    rv = callback(*a, **ka)
  File "./webapp.py", line 756, in withdraw_submit
    SendBTC(btc_from, btc_to, amount)
  File "./webapp.py", line 99, in SendBTC
    access.sendfrom(btc_from, to, str(amount))
  File "/srv/bitjack/jsonrpc/proxy.py", line 45, in __call__
    raise JSONRPCException(resp['error'])
JSONRPCException

Yes, site will be down for about 15-30 minutes.
We are solving that exception!

Now it says "payment sent". I'll keep an eye on my wallet.

    {
        "account" : "",
        "address" : "1Jm2LTRcrpQYpPAcVNjgxgZQsWTKQMBLRC",
        "category" : "send",
        "amount" : -0.85000000,
        "fee" : -0.00050000,
        "confirmations" : 0,
        "txid" : "dc02cbac2922ffc4570d51af6930f9c64017111085091ac8ec24af3bf4368259",
        "time" : 1310322619
    }

Thank you for your patience :) ... the problem seems to be solved now.

Same, it showed up in my wallet too. Seems to be working fine, thanks!

Yep, looks like it came in. Cheers. :)

I might try your game again at some point since I think you've proven yourself trustworthy.

Thanks.

    {
        "account" : "",
        "address" : "151DXRY7zHRMBzZuDTAoNyiEDVgz4JZ9Sw",
        "category" : "send",
        "amount" : -1.72000000,
        "fee" : -0.00050000,
        "confirmations" : 0,
        "txid" : "8b180608a0098fe791408d985e02977020932ac027de05298f69dc544f254400",
        "time" : 1310323148
    }

1.72 winnings for 0.14 deposited, great! ;)

Thank you for your kind words :) .

It seems to be down again?  I get a 503 error

Site will be back up soon :) .

Thanks.  Do you have a donation address for your awesome game and actually watching, fixing your site in real-time?

Sure :) .
Eheh, you made nice money I see! You're lucky!

Donation address: 114osFYWG775ahwtVRG1u1d1kuVrw1Yhqs

We have to fix a bit the API.
Site will be up again tomorrow CET.

I'll post here when we are done :) , don't worry!

Aww got to wait an entire day to play again.  Is there any way you could withdraw the BTC in my account?  I believe there is .40-.50 in it.  Good luck with fixing the API, i'll be back tomorrow hopefully (:

Don't worry the balance will be there obviously! :)

Haha, wasn't worried, just was gonna play around with it on other sites too.  Donation sent btw, thanks and I'll be back ^_^

Thank you for your tip, I'm glad you like it ;) .

Come back tomorrow!

Site is back online :) , MasonIII has witdrawn again his winnings! :D

    {
        "account" : "",
        "address" : "151DXRY7zHRMBzZuDTAoNyiEDVgz4JZ9Sw",
        "category" : "send",
        "amount" : -0.58000000,
        "fee" : -0.00050000,
        "confirmations" : 1,
        "txid" : "3eef50ea9c9a634b08c41b7071cc3e1680119eea41005e446db06ef1a4f70bca",
        "time" : 1310367744
    }

There is something seriously wrong with your code.  I played two games, each at a bet of 0.01 (started with 0.5) and now my balance shows at 0.33.

I actually had a blackjack the first hand, and my balance showed lower than when I started.

The second game I started with a queen/6 and selected hit... then ended up with a completely different hand.  Please refund my original 0.5 deposit.

After a lot of hands, somewhere around 100s? The completely different hand problem occured once, but it happened to me too. As it was on a .01 bet, i just shrugged it off and ignored it.  As for the balance thing, it happened to me too, but when i click home and relogin, the correct balance shows.  The balance that is off for some reason loses track of your win/losses after awhile, but the overall balance still shows correct for me.

I see you have withdrawn 0.51:

    {
        "account" : "",
        "address" : "17HTaxMgzR8ndmMYuhVMEA4Sng5gWEJVD9",
        "category" : "send",
        "amount" : -0.51000000,
        "fee" : -0.00050000,
        "confirmations" : 0,
        "txid" : "492d49ed8067916ea9d1c4d853ac8ee71d67d83c6d15288808186846b17709e9",
        "time" : 1310369865
    }

I know there are some bugs still, thanks for your post! :)

o_O

I deposited 0.09 and my balance became -7 (minus seven)
I tried to bet positive values, didn't succeed.
tried to bet negative value which is lower than -7. and balance became -8. than I tried to bet -10, balance became -9, than i bet -122, and balance became -10...
and where is the game? Where are the rules, I've never played blackjack :)

now my balance is -8.09 :(

oh, no it is 0.09 :) let's play! :)

-45 o_O

I would suggest taking down the site until you can fix your system.  There seem to be a ridiculous amount of bugs.

Balance problem is fixed now.
I've temporarily disabled automatic payouts for today, since more bugs are possible.

If you need to withdraw, just PM me your username and the amount desired.

Right now we have almost 20 users, 5 have deposited (SilverLeaf, Morti, MasonIII, blabla123, tysat), 4 (SilverLeaf, Morti, MasonIII, tysat) have withdrawn more than the amount they deposited :) .

Please let me know :) !

Automatic withdrawals re-enabled, testing went good :) .

3 more users signed up in the meantime :) .

Congratz to our last winner: twalters, who just won 5.17! :D

Dang congratz!

It seems my luck has moved on, (: Great game, bugs seem to be worked out.  Haha, lost like .5 straight :( unforunate 

Lol dang i gota stop gambing im always finding bugs lol first time it gave a error but after a few trys i got it to work just reporting so maybe you can fix it if theirs a problem.
 
https://i.imgur.com/9HXW0.jpg

There is always that possibly that people can maybe count cards? Unless your site is using multiple decks.

It is, i've had two 4 of diamonds before in the same game at once

I just split on two aces and received this error when I hit on the second hand:

this is pretty crappy. tons of bugs =\

and why the hell does blackjack pay 2:1

As soon as I saw that I knew it was time to stop playing.

For each game, the system uses 128 now 8! decks.


I know there are still some bugs.
When you see error 500, something went wrong when dealing. It's rare, but it happens. Our coder is working on this. Thanks for your patience :) .

About the blackjack, how much you'd like it to pay out? :)
It's configurable, I'm open to suggestions...

why not implement standard casino blackjack rules?

dealer hits soft 17

insurance pays 2:1

blackjack pays 3:2

double down first hand only, any hand

split up to 4 times.



and 128 decks is insane...

LOL at you guys complaining blackjack pays 2:1 you realize that is in the players favor and reduces the house edge significantly right? But using 128 decks? WTF

Actually it's in player favor, and can be the reason because such high amounts have been won so far :) .

J/K, now BlackJack pays 3:2, and only 8 decks per game.

Thank you for your suggestions, I really look forward to them, please keep a positive attitude and you'll be kept in maximum consideration :) .

I get an error trying to withdraw.  What info do you need from me?

The Bitcoin API has been updated, the server has been rebooted.
Please retry :) .

now my total is wrong. I deposited 0.5, won 0.51, and now it says my total is 0.5.  user: geekd

Perhaps the game happened in the 10 secs downtime.
Balance updated :) .

Congratulations for your winning! :)

BTW, I know it's a new game, there will be bugs.  As long as the money part gets taken care of (as I see from this thread that it has) then that's fine.

Suggestion:
Your header image is too big.  It pushes the gameplay down below the fold, so after each deal I have to scroll down to see what my cards are.  The gameplay should be above the fold.

got it, thanks!

It's a promising start.

Thank you for your comprehension :) .
Withdrawals and deposits are automatic now.


Thanks, logo resized.

I'm adding your winnings to the table in the first post :) .

I played 2 hands and won them both.  I'd like to keep playing but it took forever for the block to come for me to get into the game (not your fault at all - we went approx an hour with no new block) and now I need to go to bed.

1st hand, won 0.01
2nd hand: getting late, have to go, I bet 0.25.  I pull a 7 and a 4.  Double down: WIN!

I'll play again tomorrow.

Every withdrawal include a 0.0005 fee for speedy processing :) , and it's not deducted from balance :) .

I'm happy to hear you got luck, if you want to try your luck again the site will be there :) .
Enjoy your BTC! ;)

my bad, i meant 1:1, ie bet of 5$ pays bet+5$ if you assume that you get your bet back. 2:1 if you dont get your bet back so 5$ bet, get 10$.

real blackjack tables pay 3:2 in the sense that 10$ bet pays 15+ plus 10$ bet.

Yeah it paid 2*bet, now it pays 1.5*bet, while an ordinary win rewards 2*bet. Draws return the bet to the player.

HOLYSHIT!

I love blackjack, and i love self-regulated casinos. But dude, if i may make a suggestion, run it more like normal casinos do: 2-8 decks, and set a house stoploss. Here's an overview over some kinds of blackjacks, if you implement some of those kinds with strict rules i'm sure your business will skyrocket. Link: http://www.winthebet.com/typesofblackjack.php

Thank you for your link, I'm reading it eagerly :) .

Anyway, it uses 8 decks now.

Rules added on first post and on site :) .

no you got it wrong again.

IF YOU DONT RETURN BET:

blackjack pays: 2.5*bet
ordinary win pays: 2*bet

IF YOU RETURN BET (which is what you should use in your calculations):

blackjack pays 1.5*bet + bet or 3:2
ordinary win pays bet + bet or 2:1


please learn about blackjack before implementing a blackjack casino...

Thanks for your insight, I've amended the rules.

Anyway, please consider that this is not a casino, it's an experiment, and the rules I've chosen are fair, since dealing is simply a matter of popping a stack, without any calculations, unlike real casinos.

It's a programming experiment.
As I said I'm open to suggestions, but if you don't agree with the house rules (BTW, a lot of players already withdrew more than what they put into it), simply don't play :) .

Not aspiring to be Vegas, not starting a business, just trying to gain some experience having fun together with other members of the wonderful BitCoin community. :) .

Just deposited 0.02. Waiting for it to go into my account. Wish me luck :D

Good luck! ;)

You have to wait for just 1 confirmation :) .

Update: here you are :)

This site is completely broken...

It made me hit repeatedly when I only clicked hit once, it made me stand after only taking one hit and it even changed the cards (both me and the dealer) twice after hitting/standing...

I only lost 1 btc but let this be a lesson to others...

Pretty much what I've been saying, the code is buggy as hell.

I have refunded who wrote to me, I think the code needs some refactoring.

Brought the site down.

It worked ok for me. I stupidly hit double down instead of stick when I had 20. Oh well :/