Free Themes No sign-up
Fill in the blanks
Words with missing letters—themed puzzles picked fresh from the server.
Read the pattern, think of the full word, and check your answer on the play screen.
Get started
Start playing opens a default animals puzzle on medium difficulty; change theme and difficulty anytime under New puzzle on the play screen.
Explore
Did you know?
Easy leaves more letters visible; expert hides more—same word lists underneath.
Animals, food, sports, and more help you guess the full word from a partial pattern.
One shared puzzle per day per tier—compare your solve with friends on the calendar.
Quick questions
Yes—no payment or account required.
Yes. Open Printable puzzles for themed worksheets you can solve on paper.
Easy mode and family-friendly themes make it a gentle vocabulary game.
What are missing-letters puzzles?
You see a word with some letters replaced by blanks. Figure out the full word and type it in. On ProPuz, puzzles come from themed lists and each round is generated when you start—pick a theme and difficulty on the play screen anytime.
All ages
Clear masked words, instant checking, and friendly themes—great for classrooms and families.
Instant puzzles
Every game pulls a fresh word from the server—play as many rounds as you like.
Print-friendly
Build printable missing-letter worksheets with the same themes you play online.