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# Letter Game Refinement - Solved it but can't understand how it works

I managed to successfully complete the letter game refinement but I cannot understand how the following if statement works:

```    if guess in secret_word:
good_guesses.append(guess)
found = True
for letter in secret_word:
if letter not in good_guesses:
found = False
if found:
print("You win! The secret word was {}!".format(secret_word))
done = True
```

Can someone please explain how this works? It's really frustrating...

```if guess in secret_word:
good_guesses.append(guess)
found = True
for letter in secret_word:
if letter not in good_guesses:
found = False
if found:
print("You win! The secret word was {}!".format(secret_word))
done = True
```

Lets see the code.

```if guess in secret_word:
```

For the letter that is being guessed by the user is checked with secret_word. If its in the secret_word then we do the following things.

So the letter is in secret_word... good, lets add it to the collection of letters that are being guessed.

```good_guesses.append(guess)
```

Our next question is, do we have all the letters in the secret_word? And if so, then we have found the secret_word.

Lets consider, that we have guessed all the letters now and that we have the word.

```found = True
```

And if so then we'll check if we have the letters in secret_word.

```for letter in secret_word:
```

Somewhere if we find that the letters that are being guesses is missed than we say we didn't found it yet and we put found as False

```            if letter not in good_guesses:
found = False
```

if not, then we were right we have all the letters.

```if found:
print("You win! The secret word was {}!".format(secret_word))
done = True
```

Hope this helps. and if i missed something then do reply, else: upvote and accept the answer.