Oh yes!  I hadn't noticed.

Looks like someone is sending many 1 satoshi bets.  For example: http://blockchain.info/tx-index/35996634

SatoshiDice pays a separate fee for each bet.  The attacker only pays a single fee to attack all the SatoshiDice addresses in a single transaction.

So long as my transactions all get in, I'm OK.  At least then I break even (except for the fee).

The problem is when mine don't get in.  Then I lose.

Where's "Bitcoin Video Poker", with a lower flush payout?

I thought this play.luckco.in had the standard flush payout.  (It's currently down, so I can't check).

I used http://wizardofodds.com/games/video-poker/analyzer/ to work out how big the jackpot has to be before the game is +EV for the player:



Seems to be around 4880.

14 at the moment.

My tx had a lot of small inputs - which is why the default client decided to include 3 times the usual fee I guess.

The miner may have decided it's better to include 3 small transactions rather than my 1 big one.

It just happened again by the way.  This time both transactions had the same minimum fee, but only the initial bet got into the block:
  http://blockchain.info/address/1Y4jkMHYjG8M9GeTgCZvkmsQLdwP9Q9me

In this case my transaction was smaller than the first bet, since it only had one input.

It would make sense to allow smaller min bets for the "long shot" bets.

In the case I'm thinking of I paid 0.0015 in fees, the initial bet only paid 0.0005, but still the initial bet got into a block before I did.  Both transactions hit blockchain.info long before the block was found.  The miner just decided to include the tx with the smaller fee rather than mine for some reason.

This part is actually true.  It is possible for SatoshiDice to deliberately make bets against themselves that they know in advance will win.  This will reduce their profits, and result in lower payouts to their investors.

It's not possible for SatoshiDice to cheat against their players though (except by using the wrong day's secret, or just not paying out at all).

I just discovered a bug in the withdraw code.  I had a balance of ~160, and a Wagering Requirement of 60.  I clicked 'withdraw' and then 'withdraw' again without putting in a bitcoin address.

It took 100 (or so) chips off my balance leaving me with 60, but didn't (of course) send me the other 100.

The game operator was online at the time so I reported the issue to him there.  He's unable to fix it at the moment, so he's taken the game down until he can:

There's a display bug that seems pretty reproducible.

I play for 3 chips per hand.  If I get a straight on the first deal and hold all 5 cards, it adds 5*4 to my balance, then takes off 2*4.

For example, I had 109 chips after starting the hand.  I held all 5 cards, hit deal, and saw my balance update to 129 and then after half a second or so update again to 121.

I've noticed this happen at least 3 times now.  I think maybe it only happens when I've held all 5 cards.

I've had the opposite situation, where I was the only one playing, and got my bid in in plenty of time, but then only the initial bet made it into the block that was eventually found.

It was one of those times when there was almost an hour between blocks, and so thousands of transactions were waiting to get into blocks.  I just got unlucky and didn't make it into the same block as the initial bet.

Maybe it would be a reasonable change to make it so that the winner is the biggest payment confirmed in the same block as the initial bet or before, and gets all the confirmed bets so far.  Only payments which get confirmed later than the initial payment go to the house.  I don't know how that would affect the house though.  Obviously it would reduce the house take, but I don't know whether it would turn the game into a losing proposition for the house or not.

Are you talking to me?  If so I can't imagine what deal you're talking about.  I sometimes try to buy BTC for PayPal on #bitcoin-otc but recently have had very little luck.  Unsurprisingly, I guess.

I'm also a little confused.  Why do I need to register and provide an email address if you're


?

The game that appeared when I finally got logged in seems to be a little like satoshidice.  I send coins to an address to bet, and you return winnings to the address I sent from.  Why even ask for registration if that's the game?

Finally, is this how the game is meant to look?



It looks like there might be some small text in those green boxes.  If you chose a colour that contrasted with the green I might be able to tell for sure.

I still find it hard to read the captcha:



and you still won't let me use the password I want to (and the error message doesn't fit in the box it's meant to):



I've still not got to play any games so I can't tell if you've fixed the biggest problem - that your games lacked provable fairness.  But given your first post on the subject I doubt you think it's worth doing.

Edit: I used a shorter password, managed to register, then when I went to sign in it asked for a new captcha:



but I guess I read it wrong, because then it did this:



and I can't see where to go from there.  There's no option to try logging in again.

The whole feel of the site isn't very slick.  It feels like something that's only just been put together and needs the rough edges taken off.

Here's a weird one:



I got it right on my very first guess, but it wasn't picked up.

The other guy in the chat saw it though, and commented on it:

I got the error message again.  Again it was on the first hand after I'd taken a break for an hour or two, and again it was after I had decided which cards to hold, and clicked 'deal' for the 2nd time.

This time I was quick enough to grab a screenshot:

I just had a game freeze up on me.

I had been offline for a few hours, then got back online, clicked 'deal', got a couple of queens, held the two queens, clicked 'deal' again, and saw an error box pop up in the bottom right.  It was too quick for me to screenshot it, but here's how the screen looked after it had gone.  I tried talking in the chat box, but my message didn't go through:



Then, while I was typing this message, the screen updated to look like this:



I didn't get to see my new hand, but judging by the balance it looks like I got a 3rd queen.  The "THREE OF A KIND" line isn't white like it would normally be after a win though, so I don't know what happened.  I think that's my name it is welcoming in the chat, so maybe it thinks I only just joined, whereas really I've already played a game before the welcome message showed up.  And it's not normal to see the 'backs' of cards except before your first game.

Aside from the above, I tried making an account.

* it complained that my password was too secure.  maximum 15 characters allowed

* the captcha you use is very hard to read

* once I eventually got registered I tried logging in and got an ugly error page:



I guess I'll give up for now.