The article mentions that it's related, but somewhat simpler because it's "only" backtracking, versus Prolog's full logic programming:
The embedding recalls the continuation strategies used to implement Prolog-style logic programming, but is sparer because the operator provided is much like a Scheme boolean operator, does not require special contexts for its use, and does not rely on linguistic infrastructure such as logic variables and unification.
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The article mentions that it's related, but somewhat simpler because it's "only" backtracking, versus Prolog's full logic programming:
The embedding recalls the continuation strategies used to implement Prolog-style logic programming, but is sparer because the operator provided is much like a Scheme boolean operator, does not require special contexts for its use, and does not rely on linguistic infrastructure such as logic variables and unification.