A crossword in which each letter is represented by a number is called a codeword.
Its noticeable aspect is the lack of cues for the words. Only one unique letter matches to each number in a codeword.
The purpose of the problem is to restore the original coded crossword. The game is special since it combines logic, word, and numerical puzzles.

Features:
- No matter how long you play, codewords will never stop.
- Easy navigation.
- All codewords are free and you may play them offline. You just need internet connection if you desire to view meanings of the terms you guessed.
- Codeword problems come in certain size: 12×12, 12×15, 15×15, 15×18, 18×18.
- Solved letters are filled in automatically (this function may be turned off in the settings).
- Light or dark modes.
- If the codeword seems too difficult, there are clues.
- You may lay aside the problem you are completing and start another one, going back to the original one later.
- You are able to verify your answers.
- Letters that are highlighted are hinted.
- Codewords, key tables, and alphabet are scalable.
- Portrait or landscape orientation are available.
- You may select whether you desire to open a word or multiple (up to 5) random letters when you start a new codeword.
- Standard (ABC) keyboard configuration and QWERTY keyboard layout are available.
- Flexible settings.
