Bet with Bitcoin!
The rules are exactly the same - send a donation to one of the following five Bitcoin addresses. Each address corresponds to one of the five hands - Rock, Paper, Scissors, Lizard and Spock. Once received, your opponents hand will be drawn from the top of the queue of pre-calculated hands and played.
If you win, you will receive double your coin back in your wallet within 60 seconds. If you draw, you'll receive half your stake back and a friendly message, and even if you lose you'll receive 10% of your original bet back.
How do I know it's fair??
At the begining of every week, all the hands that will be played for the whole week are randomly pre-calculated and written to a text file. The text in the text file is kept secret for the rest of the week, but the hash of the text file is sent back to you in a public comment when you receive your winnings. Bets are processed in order as they come in, and assigned a sequential number. This is also included in the public comment. At the end of the week, the text from the text file is published, and everyone can see the order of hands. The hash that was sent out over the week is proof that the order or value of bets has not been modified since the wager was made (the smallest of changes to the text file would result in a completely differnt hash value.) By inspecting the block chain it can be seen the hands correspond correctly to those presented in the text file. This proves beyond doubt that the bets are fair.
[ Rock: ]
[ Paper: ]
[ Scissors: ]
[ Lizard: ]
[ Spock: ]
The minimum allowed bet is 0.001BTC. The maximum allowed bet is 0.2BTC. Please note that bets outside of this range shall be returned after a processing fee has been deducted. If the processing fee is greater than the bet amount then no refund shall be available.