The SWAP button provides new letters in the top row of the letter bank, however using SWAP will also Freeze the last valid word that you played and you will then not be able to UNDO any letters past the point of the Frozen word.
Traverse Words Crossword Games is a new Crossword Puzzles Game, created for a true word strategy spelling adventure.
To reach these difficult areas, you will need to learn how to create longer words or strategic sequences of words in order to complete these levels.
Through strategic use of the UNDO button, you can use this knowledge while building and strengthening your memory, to figure out how or what longer words you may create.
If you get stuck try the undo button, swap button, hint, or after upgrading, you can also click on the settings gear to reset the level from the menu.