# Algo Sniffer 3.3

 Author dllu Submission date 2011-05-21 22:39:11.209672 Rating 4545 Matches played 7731 Win rate 37.81

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

## Source code:

``````#hopefully fixes a stupid bug in Algo Sniffer 3.2, 3.1 and 3
#guesses the algorithm that the opponent is using
#should always beat play last input, beat last input, always play rock, and skynet2 (but somehow doesn't)
if not input:
nummoves = 0
urmoves = ['R','P','S']
mode = 0
lastoutput = 0

if nummoves<3: #for the first 3 moves, play R, P, S.
if nummoves==0:
lastoutput = output = 'R'
elif nummoves==1:
lastoutput = output = 'P'
elif nummoves==2:
lastoutput = output = 'S'
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'] or urmoves == ['R','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:
lastoutput = output = {'R':'P', 'P':'S', 'S':'R'}[lastoutput]
elif mode==2:
lastoutput = output = {'R':'S', 'P':'R', 'S':'P'}[lastoutput]
elif mode==3:
lastoutput = output = 'P'
elif mode==4:
lastoutput = output = {'R':'R', 'P':'P', 'S':'S'}[lastoutput]
else:
lastoutput = output = {'R':'P', 'P':'S', 'S':'R'}[input]
print output
print input``````