http://projecteuler.net/problem=84

84.py

# -*- coding: utf-8 -*-
from random import randint, shuffle

squares, position = [0 for i in xrange(40)], 0
cc_cards = [0, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1]
shuffle(cc_cards)
ch_cards = [0, 10, 11, 24, 39, 5, 'R', 'R', 'U', -3, -1, -1, -1, -1, -1, -1]
shuffle(ch_cards)

def cc():
    global cc_cards, position
    card = cc_cards[0]
    if card >= 0:
        position = card
    cc_cards = cc_cards[1:] + cc_cards[:1]

def ch():
    global ch_cards, position
    card = ch_cards[0]
    if card == 'R':
        if position == 7:
            position = 15
        if position == 22:
            position == 25
        if position == 36:
            position = 5
    elif card == 'U':
        if position == 22:
            position = 28
        else:
            position = 12
    elif card == -3:
        position -= 3
    elif card >= 0:
        position = card
    ch_cards = ch_cards[1:] + ch_cards[:1]

def main():
    global position, squares
    for i in xrange(1000000):
        dice = randint(1, 4) + randint(1, 4)
        position += dice
        position %= 40
        if position in [7, 22, 36]:
            ch()
        if position in [2, 17, 33]:
            cc()
        if position == 30:
            position = 10
        squares[position] += 1
    print "".join([str(squares.index(sorted(squares)[::-1][i])) for i in xrange(3)])

if __name__ == "__main__":
    main()