Choose the length of the answer, fill in any letters you already know and then enter the clue.
The approach of the OneAcross clue solver is similar to that of meta-search in information retrieval. We ask a number of sources the same question, and then combine these results to produce a unified set of possible answers.
We use probabilities to reweight all these responses by learning from past accuracy on known clues.
Read more about the team's original research project.