Many users are upset to know that the computer solver uses trial-and-error, especially since some Sudoku gurus say you should never guess to solve a puzzle. There are a number of other algorithms that can be implemented to help the computer solve sudoku, such as the swordfish and X-wings patterns.
Erabiltzaile asko atsekabetu egiten dira jakitean ordenagailuak probak eta akatsak erabiltzen dituela zenbaki-sareak ebazteko, batez ere Sudokuaren zenbait maisuk esan zutenetik ez dela probarik egin behar zenbaki-sare bat ebazteko. Badira beste algoritmo asko ordenagailuari sudokuak ebazten laguntzeko; esaterako, swordfish eta X-wings ereduak.