Post
Topic
Board Service Announcements (Altcoins)
Re: Just-Dice.com : Invest in 1% House Edge Dice Game
by
integrity42
on 30/09/2013, 20:31:10 UTC
On first view it seems that 'day trading' nakowa has a zero expectation.  But if he keeps going up and down like today then "divest at +1000, invest at -1000" is a profitable strategy.

Invest at - 5k, divest at +5k like yesterday.
You will make 20% profit daily Smiley

Or you'll get stuck divested at 5k and missing out on profits from 5k to 50k...  (we can dream...)

I've made a change to the roll algorithm.

From bet 145,000,000 it will be doing:
  hmac_sha512(nonce+':'+server_seed+':'+nonce, nonce+':'+client_seed+':'+nonce)
instead of the previous:
  hmac_sha512(          server_seed          ,           client_seed+':'+nonce)

ie. using the nonce in 4 places instead of 1.  sha512 is meant to completely change its output for any single bit change in its inputs, but it can't do any harm to change more than one bit each time.

Edit: it was pointed out in chat that this change is pointless, since even a small change in the message will (with overwhelming probability) result in a mostly different hash, due to the avalanche effect.

Aside from this change being absolutely pointless,  you risk nakowa having something else to complain about.

*Any* change you make to the site in any way, Nakowa will complain if he loses that you're cheating somehow.  So if he plays a new session with the new seed algo, and loses, he'll complain in some incoherent anti-mathematically fashion.  IF you change the kelly number, its also cheating....