I was interested to stumble upon an issue of the hacker zine Phrack dating back to 2000 which includes a tutorial on building a vulnerability scanning system used for hacking…that includes a rule engine. The article mentions a number of things you would expect: Rete, OPS5, CLIPS, Charles Forgy, Daniel Miranker and even the monkey and bananas problem.
Some time ago, I stumbled across a humorous AI exam which contains a “complicated” form of Monkey and Bananas:
The monkey and bananas problem has been complicated by the following additional factors :
(i) The bananas will not be ripe for two weeks.
(ii) The monkey is blind.
(iii) The bananas are locked in a safe.
(iv) There are no suitable boxes present.
(v) The monkey is afraid of heights.
(vi) The floor of the room has been electrified.
(vii) The monkey doesn’t like bananas anyway.