Exercism v3 launches on Sept 1st 2021. Learn more! 🚀🚀🚀


Join the Prolog Track
Prolog is a general-purpose logic programming language associated with artificial intelligence and computational linguistics.
Join the Prolog Track
Track mentors

4 Mentors

Our mentors are friendly, experienced Prolog developers who will help teach you new techniques and tricks.
Track students

1,562 Students

Join hundreds of students who have enjoyed learning and improving their skills by taking this track.
Track exercises

19 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Prolog

append([],    L,  L). 
append([H|T], L2, [H|L3]) :- append(T, L2, L3).

?- appendx([1,2],[3,4],X).
X = [1, 2, 3, 4].

?- appendx([1,2],X,[1,2,3,4]).
X = [3, 4].

?- appendx(X,[3,4],[1,2,3,4]).
X = [1, 2].

Prolog (short for "Programming Logic") is a declarative and logic based programming language developed in 1972 by Alain Colmerauer and Philippe Roussel. It has many applications, most notably in Artificial Intelligence for its pattern matching abilities over natural language parse trees.

Prolog is written in "facts" and "rules" that define logical formulas, similar to functional programs. Learning Prolog is a great way to improve skills with recursion, predicate logic, and constraint logic programming.

Join the Prolog track

Exercism is a great website

What I like about it is that I am able to solve the challenges in a TDD way working in a environment that I am familiar (my own PC not a browser IDE) and the cherry on the top of the cake is that I have access to code reviews.

Relaxed. Encouraging. Supportive.

Meet the Prolog Track mentors

Once you join the Prolog language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Avatar of Tiago Antao

Tiago Antao Personal site

Did Prolog professionally a long time ago. Still think its the best language in the world!
Avatar of Yauheni Tsiarokhin

Yauheni Tsiarokhin

functional programming enthusiast
Avatar of Anne Ogborn

Anne Ogborn https://github.com/AnnieAtDataChemist

Contributor to SWI-Prolog. Love Prolog and want to share the love.
Avatar of Lucas Polymeris

Lucas Polymeris https://github.com/Average-user

I'd like to make Prolog a better known programming language.
Fun. Challenging. Interesting

Community-sourced Prolog exercises

These are a few of the 19 exercises on the Prolog track. You can see all the exercises here.

Space Age
binary trees
tree traversals
Complex Numbers
Queen Attack
Pascal's Triangle
RNA Transcription
Passionate. Knowledgeable. Creative.

Meet the Prolog Track maintainers

The Prolog Maintainers are the brains behind the Prolog Track. They spend their spare time creating interesting and challenging exercises that we can all learn from. We are incredibly grateful for their hard work. Here are the bios of a few of the maintainers of this track.

Avatar of Lucas Polymeris

Lucas Polymeris

Math Student.

Get started with the Prolog track. As with everything on Exercism, it's 100% free!

Join the Prolog Track