PHP martingale bot for satoshiDICE

[camem]

what's all this then

http://s13.postimage.org/udgfk60pv/satoshi.jpg

[byronbb]

 

warning: the martingale method of betting isn't foolproof. this script may cause you to lose your entire balance.
warning 2: even if the martingale method of betting were foolproof, my php code may not be... use at your own risk.

if you like this and want to send me a few bits for the effort, 1CxzfAQo2UK9rppeQNvNmAFhApPqmdVR8y

I would demand a donation from SatoshiDice actually.... 

To ad to the warnings of this "system".

[camem]

as stated on their website rules, you can send to more than one of their games at once via a single 'sendmany' transaction.

Good answer, thank you

To make amends I'll make my next question luckier, by only asking it if the hash of it (mod 65535) comes in below a satoshi throw.

[julz]

The Jinx is a magical being (often hangs around 2-up games) who grows a little stronger every time someone bets based on 'patterns' occurring in independent events.
The Jinx sometimes gets upset when someone tries to credit its hard work to 'gamblers fallacy' - and may give a run of good luck to the pattern-better just to piss off that interfering logic-nerd!

[Kris]

So yeah I made 3 btc, and today I lost it all, pretty neat script though, worked perfect

[someguy123]

Here's my modified version with a few more sanity checks, it even waits for your balance to be confirmed.
I was testing it out and it worked great, but one issue was, I had it running so quickly, that I ran out of confirmed balance, and had nearly 2BTC unconfirmed, so I added a function to check whether you actually have enough balance confirmed to even send it, if not, it waits 1 minute, and repeats until you have enough balance.

Code:

<?php
require_once('jsonRPCClient.php');
/** BITCOIN **/
$btcu = array("user" => "",             // RPC Username
            "pass" =>   "",               // RPC Password
            "host" =>   "localhost",      // RPC Hostname/IP
            "port" =>   9332);            // RPC Port
$b = new jsonRPCClient("http://{$btcu['user']}:{$btcu['pass']}@{$btcu['host']}:{$btcu['port']}");

define('MIN_BET', 0.05);
define('MAX_BET', 6);
define('ADDRESS', '1dice97ECuByXAvqXpaYzSaQuPVvrtmz6');

$bet = MIN_BET;
$total_fees = 0;
$count = 0;
$count_won = 0;
while (($bet <= MAX_BET) && ($count_won < 200))
{
        $balance_a = $b->getbalance('*', 0);
        if (!isset($starting_balance)) $starting_balance = $balance_a;
        if($b->getbalance('*', 1) < $bet) { // If we don't have enough confirmed bitcoins to send to satoshi dice...
            echo "Waiting for confirmed balance";
            while($b->getbalance('*', 1) < $bet) 
            {
                echo ".";
                sleep(60); // Wait a full minute before checking the balance again.
            }
            echo "\n";
        }
    	try // Wrapped in a try catch block just incase we run out of cash.
        {
            $b->sendtoaddress(ADDRESS, (float) $bet);
    	}
        catch(Exception $e) 
        {
            echo "Have: " . $b->getbalance('*', 1) . " Needed: " . $bet . "\n";
    		die("Ran out of money?\n");
    	}
        $balance_b = $b->getbalance('*', 0);
        $count++;
        $fee = $balance_a - $balance_b - $bet;
        $total_fees += $fee;
        $total_fees = number_format($total_fees,8,'.','')+0;

        echo 'Game #'.$count."\n";
        echo 'Balance: ' . $balance_a."       ";
        echo 'Bet: '. $bet."       ";
        echo 'Fee: '. (number_format($fee, 8, '.', '') +0) . "       ";
        echo 'Total Fees: '. $total_fees. "\n";
        echo 'Balance: ' . $balance_b . "       ".'Waiting';

        $balance_c = 0;

        while ($balance_b >= $balance_c)
        {
	        sleep(4);
		$balance_c = $b -> getbalance('*', 0);
		echo '.';
        }
		
        echo "\nBalance: $balance_c       ";

        $diff = $balance_c - $balance_b;

        if ($diff > $bet)
        {
                $bet = MIN_BET;
                $count_won++;
                echo "Win! ($count_won out of $count)\n";
        }
        else
        {
                $bet *= 2;
                echo 'Lose!'."\n";
        }

        echo "\n";
}

echo 'Starting Balance: '.$starting_balance."\n";
echo 'Ending Balance  : '. $balance_c."\n";
echo 'Total Fees: '. $total_fees."\n";
$amt_won = $balance_c - $starting_balance;
echo 'Net Profit: '. (number_format($amt_won,8,'.','') + 0). "\n\n";

?>

[paraipan]

interesting...

[JoelKatz]

Be careful.

As other users have pointed out, no matter what strategy you use (including martingale progression), you can never overcome the casino's mathematical advantage (Law of Large Numbers). Over the long term the house always wins.

And, equally importantly, the longer you postpone the house's win, the more the house wins. (Because with every wager you place, the house's expected profit goes up.)

[Sukrim]

In other words:
If you play more often, you give the house more chances to win.

[geebus]

Python Version:

Win32 Binary, Source & Dependencies included.

http://www.mediafire.com/?sdlkfpgyxhcz7st

[shockD]

Be careful.

As other users have pointed out, no matter what strategy you use (including martingale progression), you can never overcome the casino's mathematical advantage (Law of Large Numbers). Over the long term the house always wins.

And, equally importantly, the longer you postpone the house's win, the more the house wins. (Because with every wager you place, the house's expected profit goes up.)

Indeed, careful folks I was screwing around with a slightly modified version of this, bet small amounts over the course of a week and got up about 35 BTC. Then the smackdown came and lost 20 BTC in relatively quick succession. I decided to call it good and stop as I was still ahead. This is precisely what you would expect to happen. Over the long term, your expected return is ~98% or whatever, depending on the game, meaning if you play long enough, you will consistently lose 2%.

Have fun, be safe

[someguy123]

Be careful.

As other users have pointed out, no matter what strategy you use (including martingale progression), you can never overcome the casino's mathematical advantage (Law of Large Numbers). Over the long term the house always wins.

And, equally importantly, the longer you postpone the house's win, the more the house wins. (Because with every wager you place, the house's expected profit goes up.)

Indeed, careful folks I was screwing around with a slightly modified version of this, bet small amounts over the course of a week and got up about 35 BTC. Then the smackdown came and lost 20 BTC in relatively quick succession. I decided to call it good and stop as I was still ahead. This is precisely what you would expect to happen. Over the long term, your expected return is ~98% or whatever, depending on the game, meaning if you play long enough, you will consistently lose 2%.

Have fun, be safe

this is almost my exact experience... very slow climb to +50, sudden smack down back to +30, and then quit about a week ago

don't want to be one of those people who end up putting their car / their house on the line!

yeah, I went full retard, I got to 50BTC, went to 17BTC due to them doublespending me or some other bug, then I slowly climbed back to 50BTC... then BAM, huge loss streak on the 50% dice, which brought me to 0.
I'm now broke.
T_T
Note: if you wanna see these results: http://www.satoshidice.com/lookup.php?tx=1LnSD2xBieJQaKXS3EtjTdWUEhkct68jAU
Feel free to facepalm at my long loss streaks =_=

[evoorhees]

And, equally importantly, the longer you postpone the house's win, the more the house wins. (Because with every wager you place, the house's expected profit goes up.)

I'm not sure I agree with this statement. I'm no statistical expert, but I believe what is being referred to here are called "independent events" in statistics, wherein each bet occurs independently of other bets. If you thus bet 9 times and win all 9 times, the 10th bet does not have any worse odds than the first, even though the house's odds have gotten out of whack.

In other words, if you "postpone" the house's win, there's no additional reason to not place the next bet. There is no "karma" in gambling. Every marginal bet has the same chance of you winning. Thus with every wager you place, the house's expected profit does NOT go up, but is the same each time no matter what.

Am I wrong or misunderstanding you Joel?

[JoelKatz]

And, equally importantly, the longer you postpone the house's win, the more the house wins. (Because with every wager you place, the house's expected profit goes up.)

I'm not sure I agree with this statement. I'm no statistical expert, but I believe what is being referred to here are called "independent events" in statistics, wherein each bet occurs independently of other bets. If you thus bet 9 times and win all 9 times, the 10th bet does not have any worse odds than the first, even though the house's odds have gotten out of whack.

In other words, if you "postpone" the house's win, there's no additional reason to not place the next bet. There is no "karma" in gambling. Every marginal bet has the same chance of you winning. Thus with every wager you place, the house's expected profit does NOT go up, but is the same each time no matter what.

Am I wrong or misunderstanding you Joel?

No, you're not wrong. It's just another way to view the same thing. Remember, your expected loses are proportional to your total bets. Thus the more you bet in total, the more you can expect to lose.

To put it another way, the more money you are trying to win or willing to lose when you do a Martingale, the more you can expect to lose.

[ErebusBat]

Joel.... you picture freaks me out.

[bearbones]

However, you have learned a valuable lesson: there is no such a thing called "the strategy to defeat the casino". Don't waste your money (and time) in gambling, instead, help the community to bring Bitcoin to the next level.

I'm pretty sure that gambling is a big part of bringing Bitcoin to the next level. SatoshiDice is unique, and couldn't be done without Bitcoin. The people gambling on it are proving just how useful Bitcoin is. Maybe a major casino will take notice, and make my friend Erik a buyout offer he can't refuse.

[ErebusBat]

I'm pretty sure that gambling is a big part of bringing Bitcoin to the next level. SatoshiDice is unique, and couldn't be done without Bitcoin. The people gambling on it are proving just how useful Bitcoin is. Maybe a major casino will take notice, and make my friend Erik a buyout offer he can't refuse.

I highly doubt this due to reglatory bodies, in the USA anyway.

In fact that is one of the only major stumbling blocks I have from proceeding with a gambling idea of my own... uncle sammy kocking at my door.

[JoelKatz]

Joel.... you picture freaks me out.

I'll ask if I can use the picture of me from Bitcoin magazine. It's equally horrible, but the "cartoonizing" makes me less painful to look at.

[JoelKatz]

I respectfully disagree. Positive balances are the consequence of having "enough luck", not because of a "winner strategy". For each person (doing a martingale) showing a positive balance, there is another (also doing a martingale) with a negative one, and the aggregate balance is negative. Even though you use a martingale approach (or whatever strategy), the expected value of your winnings/losses doesn't change at all.

With a Martingale, the majority of people can have a positive balance. The problem is that the few people who have a negative balance have lost every single cent they were willing to risk. For example, with a typical Martingale system, for every 20 people who have won 100 bitcoins, there's a guy who lost 2700 bitcoins. Your odds of being that guy aren't that high, but if you are, ...

It's like a lottery where you get paid $1 for buying a ticket. But if your ticket gets drawn, they shoot you. Martingale = Hunger Games.

[Bitcoin Oz]

Indeed, careful folks I was screwing around with a slightly modified version of this, bet small amounts over the course of a week and got up about 35 BTC. Then the smackdown came and lost 20 BTC in relatively quick succession. I decided to call it good and stop as I was still ahead. This is precisely what you would expect to happen. Over the long term, your expected return is ~98% or whatever, depending on the game, meaning if you play long enough, you will consistently lose 2%.

Have fun, be safe

this is almost my exact experience... very slow climb to +50, sudden smack down back to +30, and then quit about a week ago

don't want to be one of those people who end up putting their car / their house on the line!

I respectfully disagree. Positive balances are the consequence of having "enough luck", not because of a "winner strategy". For each person (doing a martingale) showing a positive balance, there is another (also doing a martingale) with a negative one, and the aggregate balance is negative. Even though you use a martingale approach (or whatever strategy), the expected value of your winnings/losses doesn't change at all.

I'm now broke.

However, you have learned a valuable lesson: there is no such a thing called "the strategy to defeat the casino". Don't waste your money (and time) in gambling, instead, help the community to bring Bitcoin to the next level.

What is onecoin ?