Use the rebus tool (esc key on laptop, "more --> rebus" on mobile) to enter an extra letter in a cell. All cells contain ONE OR TWO letters. Each step down the ladder is a word with one CELL changed, for example PR O VE could change into D O VE. Word length is given, hints indicate which cell is changed in that word.
Pronto per iniziare?
per salvare progressi e statistiche sui cruciverba