# blackjack simulator WIP (for card counters)

#### richodude

##### New Coder
I have no clue what I'm doing but this code gets the job done. In its current form, this program allows you to calculate the house edge for currently 1 ruleset (6d H17 DAS split up to 2 hands no surrender) by simulating x-millions of hands playing basic strategy. You are able to sim about 625k hands per second which is way better than I thought I could get. My goal is to not pay for CVCX, a \$90 program that is much fancier and sims a couple of million hands per second. The calculated house edge is off by about 1.5x so idk if my basic strategy logic is wrong (I don't think so) or I messed something up with splitting (more likely but I debugged that pretty hard). Newer coder here so lemme know if there's any formatting or other stuff that makes you cringe.

Code:
``````answer = int(input("how much is your bankroll?"))
answer = int(input("how many rounds would you like to simulate in millions? (1.6sec per mill)"))

"""
answer = input("does the dealer hit on a soft 17? (y/n/def1ult)")
answer = input("simulate with 23 deviations?")
answer = input("wong out at 1 true count? (-1,0,1,x)")
answer = input("how many units will you bet on 1 true 1?")
answer = input("true 2? (x if the last true count was your max bet)")

"""
import random

deck = [11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8,
9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11,
2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9,
10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2,
3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10,
10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4,
5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,
10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5,
6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10,
10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10]
random.shuffle(deck)
import sys

sys.setrecursionlimit(1000000)

""" EDIT THIS NUMBER TO SET THE AMOUNT OF ROUNDS/HAND SIMULATED """
rounds_simmed = 1000000 * multi
bankroll = init_bankroll
d_hand = 0
p_hand = 0
p_hand2 = 0
p_hand3 = 0
p_hand4 = 0
card = 4
rounds = 0
shoes = 0
change = 0
dub = 1
dub2 = 1

def deal():
global p_hand
global d_hand
p_hand = deck + deck
d_hand = deck + deck
# print("player's", deck, deck, "vs dealer's", deck)
if d_hand == 21:
compare()
return
if deck == 2:
d2()
if deck == 3:
d3()
if deck == 4:
d4()
if deck == 5:
d5()
if deck == 6:
d6()
if deck == 7:
d7()
if deck == 8:
d8()
if deck == 9:
d9()
if deck == 10:
d10()
if deck == 11:
d11()

def compare():
global deck
global p_hand
global p_hand2
global p_hand3
global p_hand4
global d_hand
global card
global bankroll
global rounds
global shoes
global rounds_simmed
global change
global dub
global dub2
global bet
rounds += 1
# print("Dealer turns up a", deck)
if deck == 11 or deck == 11:
while d_hand < 18:
d_hand = d_hand + deck[card]
# print("dealer hits a", deck[card])
card += 1
if d_hand > 21:
d_hand -= 10
if d_hand > 7 and deck[card] == 11:
while d_hand < 18:
d_hand = d_hand + deck[card]
# print("dealer hits a", deck[card])
card += 1
if d_hand > 21:
d_hand -= 10
while d_hand < 17:
d_hand = d_hand + deck[card]
# print("dealer hits a", deck[card])
if d_hand > 21 and deck[card] == 11:
d_hand -= 10
card += 1
# print("player: ", p_hand)
# print("dealer: ", d_hand)
if d_hand < p_hand < 22 or d_hand > 21 >= p_hand:
# print("you win")
bankroll += bet * dub
dub = 1
elif d_hand > p_hand or p_hand > 21:
# print("you lose")
bankroll -= bet * dub
dub = 1
else:
# print("push")
dub = 1
if p_hand2 > 0:
# print("player's hand 2: ", p_hand2)
# print("dealer: ", d_hand)
if d_hand < p_hand2 < 22 or d_hand > 21 >= p_hand2:
# print("you win hand 2")
bankroll += bet * dub2
dub2 = 1
p_hand2 = 0
elif d_hand > p_hand2 or p_hand2 > 21:
# print("you lost hand 2")
bankroll -= bet * dub2
dub2 = 1
p_hand2 = 0
else:
# print("push on hand 2")
dub2 = 1
p_hand2 = 0
del deck[0:card]
card = 4
rounds += 1
if len(deck) < 52:
shoes += 1
deck = [11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5,
6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10,
10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11,
2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6,
7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,
10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2,
3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7,
8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,
10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2,
3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11, 2, 3, 4, 5, 6, 7,
8, 9, 10, 10, 10, 10]
random.shuffle(deck)
if shoes % 10000 == 0:
print("Current bankroll after", rounds, "rounds and", shoes, "shoes: \$", bankroll)
if rounds == rounds_simmed:
change = bankroll - init_bankroll
print("simulation complete after", rounds_simmed, "rounds. Ending bankroll is", bankroll,
"which is a change of \$", change, ", which equates to a house edge of", (100 / bet) * change / rounds_simmed, "% (-0.67% excpected)")
return

def blackjack():
global bankroll
global bet
bankroll += bet/2
compare()

def pdouble():
global p_hand
global card
global dub
dub = 2
p_hand = p_hand + deck[card]
# print("Doubling down...")
# print("Player hits a", deck[card])
if p_hand > 21 and deck[card] == 11:
p_hand -= 10
card += 1

def psoftdouble():
global p_hand
global card
global dub
dub = 2
p_hand = p_hand + deck[card]
# print("Doubling down...")
# print("Player hits a", deck[card])
if p_hand > 21:
p_hand -= 10
card += 1

def pdouble2():
global p_hand2
global card
global dub2
dub2 = 2
p_hand2 = p_hand2 + deck[card]
# print("Doubling down on hand 2...")
# print("Player's hand 2 hits a", deck[card])
if p_hand2 > 21 and deck[card] == 11:
p_hand2 -= 10
card += 1

def psoftdouble2():
global p_hand2
global card
global dub2
dub2 = 2
p_hand2 = p_hand2 + deck[card]
# print("Doubling down on hand 2...")
# print("Player's hand 2 hits a", deck[card])
if p_hand2 > 21:
p_hand2 -= 10
card += 1

def split_aces():
global p_hand
global p_hand2
global card
# print("Player hits a", deck[card])
p_hand = 11 + deck[card]
card += 1
# print("Player's second hand hits a", deck[card])
p_hand2 = 11 + deck[card]
card += 1

def split():
global p_hand
global p_hand2
p_hand = deck
p_hand2 = p_hand
# print("splitting...")

def hit():
global p_hand
global card
p_hand = p_hand + deck[card]
# print("Player hits a", deck[card])
if p_hand > 21 and deck[card] == 11:
p_hand -= 10
card += 1

def hit2():
global p_hand2
global card
p_hand2 = p_hand2 + deck[card]
# print("Player's second hand hits a", deck[card])
if p_hand2 > 21 and deck[card] == 11:
p_hand2 -= 10
card += 1

def hit13():
global p_hand
global deck
if deck == 11 or deck == 11:
while p_hand < 18:
hit()
if p_hand > 21:
p_hand -= 10
while p_hand < 13:
hit()

def hit132():
global p_hand2
global deck
if deck[card - 1] == 11:
while p_hand2 < 18:
hit2()
if p_hand2 > 21:
p_hand2 -= 10
while p_hand2 < 13:
hit2()

def hit12():
global p_hand
global deck
if deck == 11 or deck == 11:
while p_hand < 18:
hit()
if p_hand > 21:
p_hand -= 10
while p_hand < 12:
hit()

def hit122():
global p_hand2
global deck
if deck[card - 1] == 11:
while p_hand2 < 18:
hit2()
if p_hand2 > 21:
p_hand2 -= 10
while p_hand2 < 12:
hit2()

def hit17_78():
global p_hand
global deck
if deck == 11 or deck == 11:
while p_hand < 18:
hit()
if p_hand > 21:
p_hand -= 10
while p_hand < 12:
hit()

def hit172_78():
global p_hand2
global deck
if deck[card - 1] == 11:
while p_hand2 < 18:
hit2()
if p_hand2 > 21:
p_hand2 -= 10
while p_hand2 < 12:
hit2()

def hit17():
global p_hand
global deck
if deck == 11 or deck == 11:
while p_hand < 19:
hit()
if p_hand > 21:
p_hand -= 10
while p_hand < 12:
hit()

def hit172():
global p_hand2
global deck
if deck[card - 1] == 11:
while p_hand2 < 19:
hit2()
if p_hand2 > 21:
p_hand2 -= 10
while p_hand2 < 12:
hit2()

def d2():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 10 or p_hand == 11:
pdouble()
compare()
return
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 2 or deck == 3 or deck == 6 or deck == 7 or deck == 8 or deck == 9:
split()
hit()
if p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit13()
hit2()
if p_hand2 == 18 and deck[card - 1] == 11:
pdouble2()
if p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit132()
compare()
return
if deck == 11 or deck == 11:
if p_hand == 18:
psoftdouble()
compare()
return
hit13()
compare()

def d3():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 2 or deck == 3 or deck == 6 or deck == 7 or deck == 8 or deck == 9:
split()
hit()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit13()
hit2()
if 16 < p_hand2 < 19 and deck[card - 1] == 11:
pdouble2()
if p_hand2 == 9 or p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit132()
compare()
return
if deck == 11 or deck == 11:
if 16 < p_hand < 19:
psoftdouble()
compare()
return
hit13()
compare()

def d4():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 2 or deck == 3 or deck == 6 or deck == 7 or deck == 8 or deck == 9:
split()
hit()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit12()
hit2()
if 14 < p_hand2 < 19 and deck[card - 1] == 11:
pdouble2()
if p_hand2 == 9 or p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit122()
compare()
return
if deck == 11 or deck == 11:
if 14 < p_hand < 19:
psoftdouble()
compare()
return
hit12()
compare()

def d5():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 2 or deck == 3 or deck == 4 or deck == 6 or deck == 7 or deck == 8 or deck == 9:
split()
hit()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit12()
hit2()
if 12 < p_hand2 < 19 and deck[card - 1] == 11:
pdouble2()
if p_hand2 == 9 or p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit122()
compare()
return
if deck == 11 or deck == 11:
if 12 < p_hand < 19:
psoftdouble()
compare()
return
hit12()
compare()

def d6():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 2 or deck == 3 or deck == 4 or deck == 6 or deck == 7 or deck == 8 or deck == 9:
split()
hit()
if p_hand == 9 or p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit12()
hit2()
if 12 < p_hand2 < 20 and deck[card - 1] == 11:
pdouble2()
if p_hand2 == 9 or p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit122()
compare()
return
if deck == 11 or deck == 11:
if 12 < p_hand < 20:
psoftdouble()
compare()
return
hit12()
compare()

def d7():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 10 or p_hand == 11:
pdouble()
compare()
return
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 2 or deck == 3 or deck == 7 or deck == 8:
split()
hit()
if p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit17_78()
hit2()
if p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit172_78()
compare()
return
hit17_78()
compare()

def d8():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 10 or p_hand == 11:
pdouble()
compare()
return
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 8 or deck == 9:
split()
hit()
if p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit17_78()
hit2()
if p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit172_78()
compare()
return
hit17_78()
compare()

def d9():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 10 or p_hand == 11:
pdouble()
compare()
return
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 8 or deck == 9:
split()
hit()
if p_hand == 10 or p_hand == 11:
pdouble()
hit2()
hit17()
hit2()
if p_hand2 == 10 or p_hand2 == 11:
pdouble2()
hit172()
compare()
return
hit17()
compare()

def d10():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 11:
pdouble()
compare()
return
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 8:
split()
hit()
if p_hand == 11:
pdouble()
hit2()
hit17()
hit2()
if p_hand2 == 11:
pdouble2()
hit172()
compare()
return
hit17()
compare()

def d11():
global p_hand
global p_hand2
global p_hand3
global p_hand4
global card
if p_hand == 21:
blackjack()
if p_hand == 11:
pdouble()
compare()
return
if deck == deck:
if p_hand == 22:
split_aces()
if deck == 8:
split()
hit()
if p_hand == 11:
pdouble()
hit2()
hit17()
hit2()
if p_hand2 == 11:
pdouble2()
hit172()
compare()
return
hit17()
compare()

while rounds < rounds_simmed:
deal()``````