You win when you line the squares on a row, column or diagonally before the computer does. Trick is: you have to touch definition if you want the Word selected, and the Word if you want the definition selected. Levels are beginner (most frequent 500 words), intermediate (2000 words) lower advanced (5000 words) and advanced (10540 words). Board size options are from 4x4 up to 8x8. Undo available.