DuckieDai Code Breaker Python Program

games · MIT License

Overview

A code-breaking logic game: work out a secret code of different digits from Exact and Other clues, with three levels from 3 to 5 digits.

Owner-tested on a TI calculator
Version 1.0.0
1919 bytes
Uses random

Download CODEBRK.py Read the source How to install

Before you run it

TI-84 Plus CE Python · No calculator OS or Python App version has been verified.
TI Connect CE .py transfer to the Python App; the owner's transfer details were not recorded
The secret code is made of different digits, chosen at random by the calculator for each round.
Wins and losses are kept only while the program is running.
A guess must have exactly as many digits as the code, use digits only, and not repeat a digit; anything else asks again without using a try.

Play it here first

Play a full round right here before you download. The screen below runs the same steps as the calculator game: type your answer in the box under it and press Enter, just as you would on the calculator. Each round picks a new secret, and nothing you type is saved.

JavaScript is required for the optional browser simulation. Source viewing and downloading remain available without it.

Simulation boundary: This preview uses a reviewed browser adapter. It does not execute the downloaded Python and does not prove TI-Python or calculator compatibility.

How to play

How to play Code Breaker

About the game

The calculator makes up a secret code of different digits, and you have a limited number of tries to crack it. It is a number version of the classic code-breaking board game.

After every guess you get two clues. Exact is how many digits are right and in the right spot. Other is how many are in the code but in a different spot. Put the clues together to narrow down the code.

Controls

1, 2, or 3: choose Easy (3 digits, 8 tries), Medium (4 digits, 10 tries), or Hard (5 digits, 12 tries)
4: quit from the level menu
number keys: type a guess, such as 012
enter: submit a guess, or move on from a clue screen
Y: play another round; any other answer ends the game

How to play

Press enter at the opening screen, then type 1, 2, or 3 to choose a level.
Read the rules screen and press enter.
Type a guess with the right number of digits and no digit used twice, then press enter.
Read Exact and Other, press enter, and guess again.
Get every digit exact to see CODE CRACKED! on the screen. If the tries run out, the code is shown so you can see how close you were.

Tips

Exact plus Other is how many of your digits are in the code at all. On Easy, guess 012, then 345, then 678: each total tells you how many code digits are in that group, and if the three totals add up to less than 3, the missing digit is 9.
Change one or two digits at a time. If Exact goes up or down, you learn which digit moved it.
A digit that gives Other is in the code, just not where you put it. Try it in a different spot next time.
A guess with a repeated digit, a letter, or the wrong length does not use up a try. The calculator just asks again.

Good to know

The win and loss totals start over each time you run the program.
To stop the game at any time, press the [on] key. The Python App returns to the shell.

Exact reviewed bytes

Source code

Download .py

View source below, copy it when JavaScript is available, or download the exact .py bytes.

# DuckieDai(TM) Code Breaker
# TI-84 Plus CE Python
from random import randint

def make_code(n):
 digits=list('0123456789')
 code=''
 for i in range(n):
  j=randint(0,len(digits)-1)
  code+=digits.pop(j)
 return code

def clear():
 print('\n'*7)

def intro():
 print('DUCKIEDAI(TM)')
 print('CODE BREAKER')
 print('      __')
 print('  ___(o )> quack!')
 print('  \\ <_. )')
 print("   `---'")
 print('by DuckieDai')
 print('hiddenwordscanner.com')
 input('Press Enter ')
 clear()

def guess_code(n):
 while 1:
  s=input('Your guess? ').strip()
  if len(s)!=n:
   print('Enter',n,'digits.')
  elif not s.isdigit():
   print('Digits only!')
  elif len(set(s))!=n:
   print('No repeated digits!')
  else:return s

def play():
 wins=0
 losses=0
 while 1:
  print('CODE BREAKER')
  print('1 Easy: 3 digits')
  print('2 Med : 4 digits')
  print('3 Hard: 5 digits')
  print('4 Quit')
  mode=input('Level? ')
  if mode=='4':break
  if mode not in ('1','2','3'):
   print('Choose 1-4')
   continue
  n=int(mode)+2
  tries=(8,10,12)[int(mode)-1]
  secret=make_code(n)
  clear()
  print('Crack the',n,'digit code!')
  print('Digits never repeat.')
  print('Exact = right spot')
  print('Other = wrong spot')
  input('Press Enter ')
  clear()
  won=False
  for turn in range(1,tries+1):
   print('TRY',turn,'OF',tries)
   s=guess_code(n)
   exact=sum(s[i]==secret[i] for i in range(n))
   other=sum(c in secret for c in s)-exact
   if exact==n:
    print('CODE CRACKED!')
    print('QUACK QUACK!')
    won=True
    break
   print('Exact:',exact)
   print('Other:',other)
   if turn<tries:
    input('Press Enter ')
    clear()
  if won:wins+=1
  else:
   losses+=1
   print('OUT OF TRIES!')
  print('Code was:',secret)
  print('Wins:',wins,'Losses:',losses)
  again=input('Again? Y/N ').upper()
  if again!='Y':break
  clear()
 print('Thanks for playing!')
 print('DuckieDai(TM)')
 print('hiddenwordscanner.com')

intro()
play()

# DuckieDai(TM) Code Breaker
# TI-84 Plus CE Python
from random import randint
def make_code(n):
digits=list('0123456789')
code=''
for i in range(n):
j=randint(0,len(digits)-1)
code+=digits.pop(j)
return code
def clear():
print('\n'*7)
def intro():
print('DUCKIEDAI(TM)')
print('CODE BREAKER')
print(' __')
print(' ___(o )> quack!')
print(' \\ <_. )')
print(" `---'")
print('by DuckieDai')
print('hiddenwordscanner.com')
input('Press Enter ')
clear()
def guess_code(n):
while 1:
s=input('Your guess? ').strip()
if len(s)!=n:
print('Enter',n,'digits.')
elif not s.isdigit():
print('Digits only!')
elif len(set(s))!=n:
print('No repeated digits!')
else:return s
def play():
wins=0
losses=0
while 1:
print('CODE BREAKER')
print('1 Easy: 3 digits')
print('2 Med : 4 digits')
print('3 Hard: 5 digits')
print('4 Quit')
mode=input('Level? ')
if mode=='4':break
if mode not in ('1','2','3'):
print('Choose 1-4')
continue
n=int(mode)+2
tries=(8,10,12)[int(mode)-1]
secret=make_code(n)
clear()
print('Crack the',n,'digit code!')
print('Digits never repeat.')
print('Exact = right spot')
print('Other = wrong spot')
input('Press Enter ')
clear()
won=False
for turn in range(1,tries+1):
print('TRY',turn,'OF',tries)
s=guess_code(n)
exact=sum(s[i]==secret[i] for i in range(n))
other=sum(c in secret for c in s)-exact
if exact==n:
print('CODE CRACKED!')
print('QUACK QUACK!')
won=True
break
print('Exact:',exact)
print('Other:',other)
if turn<tries:
input('Press Enter ')
clear()
if won:wins+=1
else:
losses+=1
print('OUT OF TRIES!')
print('Code was:',secret)
print('Wins:',wins,'Losses:',losses)
again=input('Again? Y/N ').upper()
if again!='Y':break
clear()
print('Thanks for playing!')
print('DuckieDai(TM)')
print('hiddenwordscanner.com')
intro()
play()

Filename: CODEBRK.py
Size: 1919 bytes
SHA-256: f334ce309cd5c641263519232f63a4cfc2ec0ff1c47432b85117fd596d7610ef

Usage

Inputs

A level: 1 Easy (3 digits, 8 tries), 2 Medium (4 digits, 10 tries), 3 Hard (5 digits, 12 tries), or 4 Quit
One guess of the code per try
Y to play again, anything else to stop

Outputs

After each guess, Exact (right digit, right spot) and Other (right digit, wrong spot)
CODE CRACKED on a correct guess, or OUT OF TRIES, and then the secret code
Running totals of wins and losses

Units: Digits; no units.

Assumptions and limitations

Assumptions

The secret code is made of different digits, chosen at random by the calculator for each round.
Wins and losses are kept only while the program is running.

Constraints

A guess must have exactly as many digits as the code, use digits only, and not repeat a digit; anything else asks again without using a try.
The level choice must be 1, 2, 3, or 4 exactly.

Known failures

A guess with a repeated digit, a letter, or the wrong length is rejected with a short message and asked again.
The win and loss totals reset when the program is started again.

Compatibility and review

Review status: Owner-tested on a TI calculator
Tested on: Owner reports personally playing this game on a TI-84 Plus CE Python calculator; the test date, OS version, and Python App version were not recorded
What happened: Owner reported pass on the calculator. The file is published exactly as provided; this exact file has not yet been rerun on a calculator.
Dependencies: random
Suggested calculator name: CODEBRK — you can give it another valid, unique name when you transfer it
Desktop test cases: Not available for this interactive-only source

This exact source auto-launches an interactive calculator session, so compatibility evidence comes from the recorded physical-device review rather than an importable desktop fixture.

Transfer and launch

Download the .py file, send it to your calculator with TI Connect CE as CODEBRK or another name, then open the Python App and start a game. Press [on] to stop at any time. This release has no verified calculator OS or Python App version; treat transfer and execution as unverified until independently tested.

Full installation and troubleshooting guide. Check your teacher's or exam's rules before using any program.

Version history

1.0.0 — current version, published 2026-10-12. Download this reviewed version

Related guide

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Overview

Before you run it

Play it here first

How to play Code Breaker

About the game

Controls

How to play

Tips

Good to know

Source code

Usage

Inputs

Outputs

Assumptions and limitations

Assumptions

Constraints

Known failures

Compatibility and review

Transfer and launch

Version history

Related learning