What is CodePop?
CodePop is a digital version of Mastermind with a daily puzzle. A secret code of four colours is set each day for all players. You have eight guesses to match the exact sequence. Six colours are available: red, blue, green, yellow, purple and orange. After each guess, four pegs appear to show proximity, but they never indicate which of your picks they refer to. That anonymity is the core mechanic.
How to play CodePop
Choose four colours for your guess and press Submit. Use Back or Clear to make changes before submitting.
After each guess, read the four pegs beside your row. Green means the colour is correct and in the right position. Yellow means the colour appears in the code but is in the wrong position. Dark means the colour is not in the code.
Use the peg pattern to work out what you know and what remains uncertain. Make your next guess to test the open question. You have eight guesses in total.
When you solve the puzzle or run out of guesses, review the answer or start another puzzle in Practice mode.
Reading the feedback pegs
The pegs show counts, not positions. Green means a colour is in the correct slot; yellow means it belongs elsewhere; dark means it is absent. You are not told which peg applies to which of your four picks. One row gives limited information, so compare each guess with the one before it. Change one element at a time instead of rebuilding the whole row.
Modes and difficulty settings
Daily gives everyone the same puzzle, refreshed at midnight. You can share your result, and the game tracks your streak.
Practice generates unlimited random codes for training and experimentation without using your daily attempt.
Standard is the default mode. The secret code contains four different colours with no repeats.
Expert allows repeated colours in the code. That removes half of the usual elimination logic and makes the puzzle significantly harder.
Strategy for stronger play
Compare guesses one change at a time after the opening. Swap two colours and watch whether peg counts stay identical. If they do, you have learned something precise. Change three elements and you learn almost nothing.
Count total pegs before reading their colours. If all four come back as green or yellow, every colour you played is in the code. The problem reduces to finding the correct order.
Know which difficulty you are solving. Under Standard, a confirmed colour cannot appear again, so each match removes a candidate from other positions. Expert removes that shortcut entirely.
Use Practice mode to test opening strategies without consuming the daily puzzle. Codes there are random rather than the shared daily code, so you can burn multiple boards refining your approach.