 
<translate> 'Yan wasan chess da basu taba yin rashin nasara ga AI ba shine 40 / 4 = mutane 10. 'Yan wasan chess da suka yi rashin nasara ga AI su ne 40 - 10 = mutane 30. Amsar ita ce 30. <eng> Chess players that have never lost to an AI is 40 / 4 = 10 people. Chess players that have lost to an AI is 40 - 10 = 30 people. So the answer is 30. 