seriously: heres how it works:
P1-rock beats P2
P2-scissors beats P3
P3-paper beats P1
this is one of 2 draw combos. the other is when everyone picks the same. Here is another example:
P1-scissors wins half
P2-scissors wins half
P3-paper loses
Here P3 loses, and P1 and P2 get half the agreed stake each. (plus the duel escrow refund)