[Update 12/15/2017]
- Provable Fair System is up and operational.
- Maximum bet set to 1000$ per spin.
- House edge updated to 1%
Topic: [ANN] SpinAndDouble.io - A bitcoin game ! Red Or Black ? Let The Game Begin ! (Read 699 times)
December 15, 2017, 04:29:48 AM
December 08, 2017, 06:32:01 AM
Nice info. I will learn how its schema and how its work progress.
December 02, 2017, 11:58:18 AM
I get it why there is no need for house edge, its because you are basically betting against him. The problem with this is that if someone programs a bot with their API (if they ever release one), it will spam thousands of bets and the net win result will be basically 50/50 since as spins -> infinity then the wins of red or black are either.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
how do you say that that is Fair? I think this is a very risk who is not provably fair on you're a system, and Minimum roll $ 1 this is crazy for starting in the new gambling. better than hyip if you want to stolen fund, you must be fixed the most common problems it be better.
Did you even read the update ? The Minimum roll was initially 10$ lowered to 5$ .. people said is to much. then it's 1$.
Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
you should be thankful people post here
owners or not (usually owners are the most knowlegable about the games since they have been both playing AND running sites)
if you do not like people leaving negative comments here,you should delete the thread
and make one self moderated thread instead
He is just type of person who can accept other opinion, feedback, or even critics. He actually should learn to listen other opinion/feedback (both positive and negative) as a support for him to make his site better. Indeed it is hard to do it, but at least be patient and answer those negative feedback calmly instead of reply with anger.
December 02, 2017, 10:14:30 AM
I get it why there is no need for house edge, its because you are basically betting against him. The problem with this is that if someone programs a bot with their API (if they ever release one), it will spam thousands of bets and the net win result will be basically 50/50 since as spins -> infinity then the wins of red or black are either.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
how do you say that that is Fair? I think this is a very risk who is not provably fair on you're a system, and Minimum roll $ 1 this is crazy for starting in the new gambling. better than hyip if you want to stolen fund, you must be fixed the most common problems it be better.
Did you even read the update ? The Minimum roll was initially 10$ lowered to 5$ .. people said is to much. then it's 1$.
Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
you should be thankful people post here
owners or not (usually owners are the most knowlegable about the games since they have been both playing AND running sites)
if you do not like people leaving negative comments here,you should delete the thread
and make one self moderated thread instead
He is just type of person who can accept other opinion, feedback, or even critics. He actually should learn to listen other opinion/feedback (both positive and negative) as a support for him to make his site better. Indeed it is hard to do it, but at least be patient and answer those negative feedback calmly instead of reply with anger.
December 02, 2017, 10:13:01 AM
The bitcoin gambling community is trying to give you a lot of feedback's and ideas on how to improve your site in the long run, but having a casino with no house edge at all seems quite illogical as there is server and maintenance fees for hosting the site, it is quite hard to generate any profits for a casino without a house edge.
December 02, 2017, 08:11:02 AM
I get it why there is no need for house edge, its because you are basically betting against him. The problem with this is that if someone programs a bot with their API (if they ever release one), it will spam thousands of bets and the net win result will be basically 50/50 since as spins -> infinity then the wins of red or black are either.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
how do you say that that is Fair? I think this is a very risk who is not provably fair on you're a system, and Minimum roll $ 1 this is crazy for starting in the new gambling. better than hyip if you want to stolen fund, you must be fixed the most common problems it be better.
Did you even read the update ? The Minimum roll was initially 10$ lowered to 5$ .. people said is to much. then it's 1$.
Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
you should be thankful people post here
owners or not (usually owners are the most knowlegable about the games since they have been both playing AND running sites)
if you do not like people leaving negative comments here,you should delete the thread
and make one self moderated thread instead
November 30, 2017, 11:30:55 AM
And another unFortune Jack promoter...
You probably missed this one:~snip~
One question . How much you pay your "slaves" to post negative feedback to other gambling websites ?
Do you have proof for your lies?One question . How much you pay your "slaves" to post negative feedback to other gambling websites ?
Somehow I missed your thread but I will leave my feedback
There is no moderator to check out those "slaves" paid to post negative feedback ?
Unfortunately obvious scams are not moderated. Speaking of negative feedback, can you quote me negative part? I only quoted your words and my feedback is very positive
obvious scam ? Better go to your unFortune Jack topic and see users accusing them for scam. How much they pay you to be a scam slave ?
November 30, 2017, 11:20:10 AM
And another unFortune Jack promoter...
You probably missed this one:~snip~
One question . How much you pay your "slaves" to post negative feedback to other gambling websites ?
Do you have proof for your lies?One question . How much you pay your "slaves" to post negative feedback to other gambling websites ?
Somehow I missed your thread but I will leave my feedback
There is no moderator to check out those "slaves" paid to post negative feedback ?
Unfortunately obvious scams are not moderated. Speaking of negative feedback, can you quote me negative part? I only quoted your words and my feedback is very positive
November 30, 2017, 11:13:27 AM
~snip~
Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
Your game is excellent! Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
I like the way how you handle max bet limit...
As for the maximum bet, there is none.
...becauseNobody will bet 20 BTC. So nobody will exceed our max bet .
I also like that you are allowing deposits while:I think you are very stupid.
Finally someone with some IQ.
And another unFortune Jack promoter... There is no moderator to check out those "slaves" paid to post negative feedback ?
November 30, 2017, 10:51:55 AM
~snip~
Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
Your game is excellent! Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
I like the way how you handle max bet limit...
As for the maximum bet, there is none.
...becauseNobody will bet 20 BTC. So nobody will exceed our max bet .
I also like that you are allowing deposits while:I think you are very stupid.
Finally someone with some IQ.
November 30, 2017, 10:45:57 AM
I get it why there is no need for house edge, its because you are basically betting against him. The problem with this is that if someone programs a bot with their API (if they ever release one), it will spam thousands of bets and the net win result will be basically 50/50 since as spins -> infinity then the wins of red or black are either.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
how do you say that that is Fair? I think this is a very risk who is not provably fair on you're a system, and Minimum roll $ 1 this is crazy for starting in the new gambling. better than hyip if you want to stolen fund, you must be fixed the most common problems it be better.
Did you even read the update ? The Minimum roll was initially 10$ lowered to 5$ .. people said is to much. then it's 1$.
Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
November 30, 2017, 04:13:46 AM
I get it why there is no need for house edge, its because you are basically betting against him. The problem with this is that if someone programs a bot with their API (if they ever release one), it will spam thousands of bets and the net win result will be basically 50/50 since as spins -> infinity then the wins of red or black are either.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
how do you say that that is Fair? I think this is a very risk who is not provably fair on you're a system, and Minimum roll $ 1 this is crazy for starting in the new gambling. better than hyip if you want to stolen fund, you must be fixed the most common problems it be better.
Did you even read the update ? The Minimum roll was initially 10$ lowered to 5$ .. people said is to much. then it's 1$.
Can you all dice,casino,faucets owners stop posting here ?Funny how those guys promoting unFortune Jack are accused of fraud and they are still allowed to post here.
November 30, 2017, 03:14:35 AM
I get it why there is no need for house edge, its because you are basically betting against him. The problem with this is that if someone programs a bot with their API (if they ever release one), it will spam thousands of bets and the net win result will be basically 50/50 since as spins -> infinity then the wins of red or black are either.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
However if its just for a few bets then it should be fine for now at least. Since this site just launched a few hours ago.
However the no provably fair issue is a huge deal breaker. You need to prove the bets or else this is another Yobit dice type of site. Where its impossible to tell if you lost by bad luck or were cheated.
Another issue is with the max bet. You need to use risk according to your in house capital so you don't end up going insolvent.
November 30, 2017, 01:12:29 AM
Crazy how a site owner speaks rough to their potential players and I doubt you know what is the house edge and the effect of it. If you don't have house edge you will not win in the long run specially if there is no max bet. Uhm wait, there is no max bet? Can you provide here proof on how much bankroll you have? What if someone bet 100btc, will you be able to pay it? Doubt it
Owner is right here, he said no one will exceed their max bet. Obviously it is just too good to be true if a new site claims that they have no max bet. Owner must have thousands btc or even more, but I doubt it. If he owns that much then I think he could make a better site.
November 30, 2017, 12:59:05 AM
how do you say that that is Fair? I think this is a very risk who is not provably fair on you're a system, and Minimum roll $ 1 this is crazy for starting in the new gambling. better than hyip if you want to stolen fund, you must be fixed the most common problems it be better.
November 29, 2017, 10:58:35 PM
Crazy how a site owner speaks rough to their potential players and I doubt you know what is the house edge and the effect of it. If you don't have house edge you will not win in the long run specially if there is no max bet. Uhm wait, there is no max bet? Can you provide here proof on how much bankroll you have? What if someone bet 100btc, will you be able to pay it? Doubt it
November 29, 2017, 09:31:13 PM
Just checked out your site. Maybe you could convince me ifthe provable fair system is already availble. For the mean time I will stay in Freebitco.
November 29, 2017, 07:07:41 PM
Not provably fair
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
You are right. I suggest all users to avoid SpinAndDouble.
At least until they release provably fair verification tool, prove solvency and explain how their are winning money if their 50/50 claim is true.
Not provably fair
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
You are right. I suggest all users to avoid SpinAndDouble.
At least until they release provably fair verification tool, prove solvency and explain how their are winning money if their 50/50 claim is true.
No offence but I think you are very stupid.
Quote
explain how their are winning money if their 50/50 claim is true.
If you bet and lose we win money. Please go back to your dice gambling website. Why I even bother?....
FAQ updated.
We will post new Updates about provably fair verification tool in 4-5 days.
November 29, 2017, 06:54:09 PM
Not provably fair
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
You are right. I suggest all users to avoid SpinAndDouble.
At least until they release provably fair verification tool, prove solvency and explain how their are winning money if their 50/50 claim is true.
November 29, 2017, 06:49:34 PM
If there is no house edge then the house will always lose if you have enough to keep doubling your bet untill you win. This gambling site sounds bogus to me, it's probably the higher the bet the less the percentage in the programming otherwise the house would go tilt within a day.
Yes, i try to rip off people for 1$ . What's so hard to understand ? You bet 10$ ,if you win you get 20$ ,you lose you have -10$
Every bet you make has a certain probability of winning or losing. If you bet on the flip of a coin, the probability of heads or tails is 50-50. This would be an even money bet. If you bet a dollar and was paid a dollar when you won, you would be paid TRUE ODDS. I love how those casino , faucets, dice games ,some creepy thing game owners are posting here.
November 29, 2017, 06:31:38 PM
If there is no house edge then the house will always lose if you have enough to keep doubling your bet untill you win. This gambling site sounds bogus to me, it's probably the higher the bet the less the percentage in the programming otherwise the house would go tilt within a day.
November 29, 2017, 06:10:30 PM
Unfortunately we dont have a tool for provably fair . We will start working on it in the next couple of days. As for the maximum bet, there is none.
how can your system be provably fair if the odds on a 2x game is 50%
this means that your game has no house edge i.e. you are making money...some other different way
this is one of the multitude of the scripts very popular past couple of years,if I'm not mistaken
and yeah,nobody would bet on your site untill you get some sort of a bet verifier
November 29, 2017, 04:23:54 PM
Is there a give away promotion for starters?
Not for the moment.
As for the maximum bet, there is none.
So if someone places a Ƀ 20 bet and wins you'll be able to pay out their winnings? For that and the reasons others have mentioned I'm sure you can see why people are skeptical.
It's a new website. People are skeptical like you said. Nobody will bet 20 BTC. So nobody will exceed our max bet .
Not provably fair
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
Provably fair system will be available in the next few days.
Max bet ? I dont think you can exceed our max bet because you cant afford to bet 5$.
House edge ? It's like a flip of the coin . 50/50
LE : Changed the minimum spin cost to 1$ maybe now you can afford to bet.
pick only red and black i think this is similar just like playing roulette but only just more simple because only 2 options bets available and i have recently make an account at there to testing your site but apparently there was no faucet options at there and minimum amount to bets 0.0004 still quite high to me
So you want to bet 1$ and withdraw 2$ ?...
November 29, 2017, 12:52:45 PM
pick only red and black i think this is similar just like playing roulette but only just more simple because only 2 options bets available and i have recently make an account at there to testing your site but apparently there was no faucet options at there and minimum amount to bets 0.0004 still quite high to me
November 29, 2017, 11:55:15 AM
Not provably fair
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
No house edge
No max bet
It is just WOW..
Just checked the site and looked at the latest win. There are some big wins already, are they for real? Or just a fake stats to attract new users? I doubt people will out big money on this site for above reasons. I myself will not even want to register on this site as it sounds fishy. I'll wait till they add provably fair system and signing a message of their hot wallet which seems to have unlimited btc LOL
November 29, 2017, 10:07:56 AM
As for the maximum bet, there is none.
So if someone places a Ƀ 20 bet and wins you'll be able to pay out their winnings? For that and the reasons others have mentioned I'm sure you can see why people are skeptical.
November 29, 2017, 09:39:57 AM
Is there a give away promotion for starters?
November 29, 2017, 09:00:04 AM
Unfortunately we dont have a tool for provably fair . We will start working on it in the next couple of days. As for the maximum bet, there is none.
how can your system be provably fair if the odds on a 2x game is 50%
this means that your game has no house edge i.e. you are making money...some other different way
this is one of the multitude of the scripts very popular past couple of years,if I'm not mistaken
and yeah,nobody would bet on your site untill you get some sort of a bet verifier
November 29, 2017, 06:04:51 AM
Unfortunately we dont have a tool for provably fair . We will start working on it in the next couple of days. As for the maximum bet, there is none.
November 29, 2017, 05:17:17 AM
How about the fairness? Do you have provably fair system on this game? I cant find here and on your site as well. You only say it is fair because it is 50:50 chance to win. That's not how fairness works, you should have bet verifier so players wont feel of being cheated if they lose the bets.
For a new site, you should lower the minimum bet. $10 is just too high for some gamblers, unless you are trying to get big gamblers only. How about the max bet allowed? You forget mention about it.
For a new site, you should lower the minimum bet. $10 is just too high for some gamblers, unless you are trying to get big gamblers only. How about the max bet allowed? You forget mention about it.
November 29, 2017, 04:07:11 AM
Hello friends,
I am happy to introduce you to a new Bitcoin based game. https://SpinAndDouble.io/.
A game based on Ashley Revell story https://www.youtube.com/watch?v=zGCdBsOIKYA !
What it would be ? Red Or Black ? Spin And Double !
A Bitcoin Game that is Fair
It’s very important to ensure that the systems remain fair to all users, that's why you have a 50/50 chance to win.
FAQ
Q.What is the withdrawal process time ?
A.We process withdrawals at least once a day.
Q.Can I play as soon as I deposit?
A.Your deposit will be credited after one network confirmation. Deposits made from an exchange are typically slower than deposits made from a cryptocurrency wallet.
Q.What is the minimum spin costs?
A.1$ equivalent in Bitcoin. BitPay rate.(We will change the minimum bet back to 5$ when provably fair system is up)
Q.What is the minimum withdraw amount?
A.5$
Q.Can I use altcoins?
A.No, we only accept Bitcoin
Q.Do I need to pay transaction fees when I withdraw coins?
A.Yes.
Q.What is the win percentage ?
A.Players have a 50% chance of winning
Q.Can I play for free?
A.You can play the demo without registering.
Q.Can I have multiple accounts?
A.Yes.
Q.Can I request a refund?
A.No. All bets are final and cannot be refunded.
Q.How can I contact you?
A.Use our live chat feature.
Q.Do you have provably fair system ?
A.We are working on it.
Q.Explain how you are winning money if 50/50 claim is true.
A.Let's say you bet 10$ and win, you get 20$. If you lose you have -10$. (explanation for low IQ users that posted here)
I am happy to introduce you to a new Bitcoin based game. https://SpinAndDouble.io/.
A game based on Ashley Revell story https://www.youtube.com/watch?v=zGCdBsOIKYA !
What it would be ? Red Or Black ? Spin And Double !
A Bitcoin Game that is Fair
It’s very important to ensure that the systems remain fair to all users, that's why you have a 50/50 chance to win.
FAQ
Q.What is the withdrawal process time ?
A.We process withdrawals at least once a day.
Q.Can I play as soon as I deposit?
A.Your deposit will be credited after one network confirmation. Deposits made from an exchange are typically slower than deposits made from a cryptocurrency wallet.
Q.What is the minimum spin costs?
A.1$ equivalent in Bitcoin. BitPay rate.(We will change the minimum bet back to 5$ when provably fair system is up)
Q.What is the minimum withdraw amount?
A.5$
Q.Can I use altcoins?
A.No, we only accept Bitcoin
Q.Do I need to pay transaction fees when I withdraw coins?
A.Yes.
Q.What is the win percentage ?
A.Players have a 50% chance of winning
Q.Can I play for free?
A.You can play the demo without registering.
Q.Can I have multiple accounts?
A.Yes.
Q.Can I request a refund?
A.No. All bets are final and cannot be refunded.
Q.How can I contact you?
A.Use our live chat feature.
Q.Do you have provably fair system ?
A.We are working on it.
Q.Explain how you are winning money if 50/50 claim is true.
A.Let's say you bet 10$ and win, you get 20$. If you lose you have -10$. (explanation for low IQ users that posted here)
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