# Algo Sniffer 3

 Author dllu Submission date 2011-05-21 21:46:52.916722 Rating 4206 Matches played 7367 Win rate 37.89

Use rpsrunner.py to play unranked matches on your computer.

## Source code:

``````import random
#guesses the algorithm that the opponent is using
if input=="":
nummoves = 0
mymoves = urmoves = [0,0,0]
mode = 0

if nummoves < 3:
move = nummoves+1
if move==1:
output = 'R'
elif move==2:
output = 'P'
else:
output = 'S'

mymoves[nummoves] = output
urmoves[nummoves] = input
nummoves += 1
else:
if mode==0:
if urmoves == ['P','R','P']: #you are play last input
mode=1
elif urmoves == ['P','P','S']: #you are beat last input
mode=2
elif urmoves == ['R','R','R']: #you are always play rock
mode=3
elif urmoves == ['S','S','R']: #you are skynet2
mode=4
else: #I don't know who you are but I'll always beat your last input
mode=5
if mode==1:
output = {'R':'P', 'P':'S', 'S':'R'}[lastoutput]
elif mode==2:
output = {'R':'S', 'P':'R', 'S':'P'}[lastoutput]
elif mode==3:
output = 'P'
elif mode==4:
output = {'R':'R', 'P':'P', 'S':'S'}[lastoutput]
else:
output = {'R':'P', 'P':'S', 'S':'R'}[input]
lastoutput = output``````