This game is called Codewords. It is a crossword puzzle in which each letter is replaced by a number. The goal is to find out what the numbers mean. It's not like a regular crossword, where you have clues, but you have to figure out the clues on your own.

Each row is a single letter, and each column is a single number. There are three different sizes of puzzles. The first one has only two rows and two columns. The second one has four rows and four columns. The third one has seven rows and seven columns. There is a special row and column for the solution. It is located at the very bottom of the puzzle.

This game is very easy to play. You just have to use your keyboard to enter the letters and numbers. The first time you play the game, it will ask you for a password. It is the same for the next time.