chess engines are computer systems that can play chess games against human opponents. many have been created; they can play at master level, though their processes are quite different from those of a human being.&lt;ref name="h/w"&gt;hooper d. and whyld k. 1992. "the oxford companion to chess". 2nd ed, oxford university press.&lt;/ref&gt;p87 the best engines on the fastest computers have won matches against both kasparov and kramnik, but the software can be used at an easier level for a learner.