Called Unolingo, and pronounced “you-know-lingo”, this new brain-teaser is a 10 x 10 crossword puzzle without clues, and 26 empty squares that require the precise placement of each letter of the alphabet.

Depending on your choice of difficulty, from one-star (easiest) to four-star (most difficult), a Unolingo can be completed in 5-15 minutes and calls for a mix of word knowledge, logic and deductive reasoning.

Ideally suited for the daily commuter, the casual puzzler, or the serious word buff, Unolingo puzzles offer mind-bending challenge, and are well suited to both collaborative and competitive situations.

If you love challenging word games, puzzles, or crosswords, then you are sure to love Unolingo!