Wordocu

In Wordocu, classic Sudoku trades numbers for letters. Fill a 9x9 grid split into 3x3 blocks, placing letters in every empty cell until the puzzle is complete. Three difficulty options are available: beginner, intermediate, and advanced. The rules stay the same across all three. Settings include timer off, full-screen mode, hints on or off, help, and an instant solve option for the entire puzzle.

How to play?

Pick a difficulty, then place letters into the empty spaces. No row, column, or 3x3 block can contain matching letters. At the beginning, several letters are already on the grid. Depending on the puzzle, these may include A, F, R, O, M, and T. The letter set changes each game and is randomized. Greater difficulty leaves fewer letters on the board at the beginning. Use the placed letters as guides for the rest of the grid.