Python3 simulation of https://fivethirtyeight.com/features/can-you-survive-squid-game-riddler/

squidgame.py

# Simulation of https://fivethirtyeight.com/features/can-you-survive-squid-game-riddler/
from random import randint
import statistics

times = 100000

data = []
# bridge made up of 18 pairs of separated glass squares.
BRIDGE_SQUARES = 18
BAD_GLASS = 1

for i in range(times):
    # In this round, you are one of the 16 remaining competitors.
    alive_competitors = 16
    known_squares = 0

    while known_squares < BRIDGE_SQUARES:
        # everyone died!
        if alive_competitors == 0:
            break
        # choose one of the two squares in a pair to land on.
        square_to_land = randint(0, 1)
        if square_to_land == BAD_GLASS:
            alive_competitors -= 1
        # Once a pair is revealed all remaining competitors take notice.
        known_squares += 1

    data.append(alive_competitors)

mean = statistics.mean(data)
median = statistics.median(data)
mode = statistics.mode(data)

# On average, how many of the competitors survive and make it to the next
# round of the competition?
print(f'alive competitors: mean: {mean} median: {median} mode: {mode}')