BlackJack competition on kaggle https://www.kaggle.com/borisalekseev/blackjack-microchallenge/edit discussion https://www.kaggle.com/learn-forum/58735#latest-348767

blackjack.py is a description of game realization. Could be used to check the rules of the game.

Currently, dealer++.py consists an algorithm to calculate distribution of probabilities for dealer to get total of 17-21 or 22 (when dealer get more than 21) on each stage)

Folder js contains the port of dealer++.py to Javascript (thanks, Serg!)

Next goal - calculation of the best strategy for player.

The overall idea is (not finished yet!!):

def PlayerStrategy(total, aces = False):

"""

total - current total sum of cards

aces - is True if Aces are among the cards, False if not

should return

[Stop, Prob]

Stop - True - if the best decision is to stop, False - if not

Prob - probability if win

"""

dealer_distr = {17:0, 18:0, 19:0, 20:0, 21:0, 22:0}

dealer_distr = dealer()

player_win_if_stop = dealer_distr[22]

player_win_if_continue = 0

for c in range(1,11):

if total+c > 21:

  # player in fire

elif aces and total+c<12:

  # player use aces
  
  stop, prob = PlayerStrategy(total+c+10, aces or c == 1)
  
  if prob > player_win_if_continue:
  
    prob = player_win_if_continue
  
else:

  stop, prob = PlayerStrategy(total+c, aces or c == 1)
  
  if prob > player_win_if_continue:
  
    prob = player_win_if_continue

if player_win_if_stop > player_win_if_continue:

return [True, player_win_if_stop]

else:

return [False, player_win_if_continue]